Milling Pontiac 6x Heads

Classic Industries offers a wide selection of 1967 Pontiac Firebird parts, including 1967 Pontiac Firebird interior parts and soft trim, 1967 Pontiac Firebird exterior sheet metal, 1967 Pontiac Firebird moldings, 1967 Pontiac Firebird emblems, 1967 Pontiac Firebird weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. The set of #62 heads and 4X heads that I have do not have this hole. 77" valves) to about 240 cfm intake and 200 cfm exhaust. They are usually stamped on the machined pads by the valve covers. The Last Trans Am Engine. Get the best deals on Pontiac Vintage Car & Truck Cylinder Heads & Parts when you Vintage and Classic Car & Truck Cylinder Heads & Parts Pontiac 6X 8 Heads B. Discover stylish and highly practical floor solutions in the luxurious range of wood & stone effect vinyl tiles. It may take a few seconds to load. I would say that any added volume "above the valves" doesn't change the CR because the I and E valves are both closed during the compression and power strokes. Although, I've made real nice power with the compression in the high sevens. Most steel doors outlast their wood counterparts by over 10 years, are better insulated, vandal resistant, and longer lasting than wood doors or fiberglass doors. With some forged internals, a nice bump stick and general Pontiac machine work should I be able to run pump gas and make 500hp? Should I do some elaborate porting on the 6X. With over 450 dealers nationwide, your next trailer is closer than you think. Sutherland has one of the largest felt inventories in North America. Featuring U S for sale today online!. Big assortment of at hard to beat asking prices. In 1973 Pontiac started stamping extra numbers (1/4" tall) on their heads. However, it appeared to many that the Pontiac 350 engine shared the same head with the standard L-78. craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events. In light of this, the 'Year' entry, as indicated by the chart below, may actually represent the year that the heads were cast, versus the year that they were actually installed on an automobile. There's a formula for how much to mill. 8 hp/551 lb-ft), it was now time to begin our research and development work. Depends on what you want to accomplish. In 1973 Pontiac started stamping extra numbers (1/4" tall) on their heads. 055" with that much cut off so all the milling may not be all too cheap!. Pontiac Engines. 005 inches removed). Your local, family-friendly online classifieds site for cars, furniture, jobs, real estate & more. 090", but you will have to wack the intake suface at least. OO rapmep4349-80% di sconto - www. Special deals on the latest cell phones and smartphones. Buy products such as SwissTech Men's and Big Men's Puffer Jacket, up to Size 5XL, George Men's Regular Fit Jean at Walmart and save. 060 and has been filled with Poncho 400s slugs. We can help on both counts, with maintenance products like oil and filters to keep your engine going, and the finest quality replacement components if repairs. I will be using hedders. When examining any Pontiac head today it requires an open mind. Get accurate compression without the guesswork! Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you're on your way to maximum performance. After years of extensive R&D both on the flow bench and on our track, we have developed some of the best performing round port and D-port cast iron Pontiac cylinder heads ever. For Sale page! Take advantage of the (my) crummy economy as I put up core engine parts. Pontiac 400 pistons and cam. Buy Ram on eBay now! 2014 Ram Dodge 270 241 Hemi Heads Red Ram Intake Exhaust Valves Springs. They escaped but were tracked to Maine. The 455 Pontiac Trans Am was history. At Walmart Photo Center, you can create prints, wall art, photo books, custom cards, and a whole lot more for yourself or your business and as gifts. Pontiac Head Specs. All heads can be safely milled. Arrested by a suspicious cop. After all that and dealing with milling the intake side (or intake itself which makes it a dedicated part for those heads) as well you are gaining very little in compression on a 400. Click Here for Edelbrock Aluminum Head Installation Sheet PONTIAC HEAD CHART CASTING NUMBER YEAR FACTORY APPLICATION CHAMBER VOL# CC'S EXHAUST PORT NOTEWORTHY ATTRIBUTES 528511 1958 370 62 D-Port 1. This particular incident sticks out because he was in first place during one of the most prestigious races in F1, during which the second place guy (Lewis Hamilton) overtook the lead and ultimately won the race. 77" valves) to about 240 cfm intake and 200 cfm exhaust. Pontiac Cast Iron Cylinder Heads and Labor Prices BP ports more Pontiac cylinder heads than anyone in the world. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. " But as you point out, current tastes and design trends have eroded FWD's packaging advantages. Pontiac Cylinder Head ID Numbers. A compression spring is an open-coil helical spring that offers resistance to a compressive force applied axially. Great deals on Dream On Me baby products can always be had at Burlington! Cribs, bassinets, and strollers - shop them all and get exactly what baby needs. Check out our range of Bolts products at your local Bunnings Warehouse. The objective is to run good, run cool, be reliable and at as little cost as is possible. If it was me, I'd find a set of smaller chamber heads like the well known 6X-4 or 4X heads from a 400. I have hundreds of cast iron D-port heads in stock. favorite this post Oct 16 1977 PONTIAC 400 6X HEADS, & INTAKE $175 (Hayward) pic hide this posting restore restore this posting. At Walmart Photo Center, you can create prints, wall art, photo books, custom cards, and a whole lot more for yourself or your business and as gifts. 055" with that much cut off so all the milling may not be all too cheap!. The '71 heads are 90cc with smaller valves than my '76 6X heads, and I found a chart on Wallace Racing that if I mill the heads around. It is used to elongate the intake bolt holes on a Small Block Chevy intake manifold. If you do go with 1. The motor is an awesome Pontiac mill based off of a 1965 vintage 389. The reports listing is sortable by the event date, report date, city, and state. Depends on what you want to accomplish. Milling the heads has no effect on which rockers you can run. I have determined that the heads on my firebird are from a 77 pontiac and are 6x8's. Flooring for home and commercial use. Visit us today for the widest range of Screw, Bolts & Fixings products. Don't hold me to that number. Skip to content. The display has rounded corners that follow a beautiful curved design, and these corners are within a standard rectangle. Original Pontiac cylinder heads contain a wedge-type combustion chamber that's fully machined for a clean, consistent burn. If you do go with 1. Actually ther is nothing wrong with 4x heads they just dont let you run big compression without big domed pistons. Read more: Spirolock Tool & 421 Pontiac Combo - Hot Rod Magazine. 66's and mill them a touch. With a Walmart Photo account, you can upload your photos from your computer, phone, other device, or social media albums. It should not be too hard to turn up a 4x head fitted with the smaller 92 cc chamber, or a 5c head with the 89 cc chamber off of a 75 350 motor, even the 75 1/2 to 79 6X-8 head can be milled. Casting 6X heads and similar heads from the "smog era" generally all have hardened exhaust seats, screw-in rocker studs and guide plates, with 2. Check out our range of Bolts products at your local Bunnings Warehouse. I have hundreds of cast iron D-port heads in stock. When measured as a standard rectangular shape, the screen is 5. It’s a way to become a better neighbor. grade felt, polyester felt, and die cut felt products. favorite this post Oct 16 1977 PONTIAC 400 6X HEADS, & INTAKE $175 (Hayward) pic hide this posting restore restore this posting. These head numbers represented chamber sizes. One cc will be deleted for each. Shipping Disclaimer: Orders placed after 12PM local destination time will not be processed and shipped until the following business day (Mon-Fri excluding Holidays). Buy & sell your used stuff for free on UsedRegina. Vintage Car Parts Including Ford, Chevy, Pontiac. I Have a Pontiac 400 block im going to start building, stamp code is 481988 (71-74 block) I have a set of 1968 6X-8 heads. Nothing you put forward is actually evidence of Savage bolt action being "better" than the other "budget" actions. QuickFacts United States. For over 30 years, American Musical Supply has been the choice of millions of customers for their musical instrument and gear needs! Our inventory includes a wide assortment of electric and acoustic guitars, amplifiers, live sound gear, DJ gear, recording equipment, drums, keyboards, accessories and more from hundreds of great brands. Pontiac Cast Iron 6x; Pontiac NASCAR 23 deg and material left on the joint face for final milling. Pontiac Cylinder Head ID Numbers. Navy Federal Credit Union is an armed forces bank serving the Navy, Army, Marine Corps, Air Force, Coast Guard, veterans, DoD & their families. Here are some ways of finding out and changing your compression ratio on Pontiac V8 engines. ** Use sheet stainless steel block off plate. At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life. Can I swap heads from a 74 Pontiac GTO motor (350) to a 400 motor? Howdy. Vision has been producing premium after-market wheels for over 35 years. 1970-Now-Lot Vintage Small Plastic Toy Soldiers WWII Many Painted 1 Tall Figures of oqxfpm2338-buy cheap new - www. I have a set of hand-ported (by me) 6X-4 heads (soon to be 90cc) ported (with 2. If you are in need of bulk clothing for your company or upcoming event, check out our amazing selection of bulk apparel from the LOW PRICE LEADER. 11" intake x 1. OO rapmep4349-80% di sconto - www. It's outdoor entertaining made easy. The stamped number was the last digit of. Skip to content. A 1968-72 Pontiac Iron Intake and Q-Jet will be in order for a 1972 GTO 400Spec. Another 20hp in '78 made these the best post-1972 400s built. Your Walmart Photo account. Rest assured, when you buy a rust repair panel from Mill Supply, you are going to receive the best there is in the industry. Buy a ball today online. This 'bird's "YU" branded V8 combined the largest muscle car engine you could buy with Pontiac's proven "6X" head design to create one of the fastest pony cars on the market. Delegation strategies for the NCLEX, Prioritization for the NCLEX, Infection Control for the NCLEX, FREE resources for the NCLEX, FREE NCLEX Quizzes for the NCLEX, FREE NCLEX exams for the NCLEX, Failed the NCLEX - Help is here. favorite this post Oct 16 1977 PONTIAC 400 6X HEADS, & INTAKE $175 (Hayward) pic hide this posting restore restore this posting. hollyanneblake. See How to Identify Pontiac's Small Chambered 6X Head for more info on ID'ing 6X heads. Bds 670h Strut Spacer Rear Coil 4 Suspsension Lift For Ram 1500 Wo Air Ride. Since the only mod I am doing to up compression is milling I need to know how much I can safely mill these heads ( milling is done by a buddy of mine: free ). Although, I've made real nice power with the compression in the high sevens. The '71 heads are 90cc with smaller valves than my '76 6X heads, and I found a chart on Wallace Racing that if I mill the heads around. For the price of having studs and hardened seats installed in the #17 heads, you can buy a good set of 6x-4 head cores. They provided the lowest factory compression ratio ever on a Pontiac 400. How much to mill. Here are some ways of finding out and changing your compression ratio on Pontiac V8 engines. Vision Wheels are 25% OFF with FREE SHIPPING. Needing measurements for 6x-8 heads - posted in Second Generation Pontiac Firebird (1970 - 1981): Hey guys! Havent posted here in a while, but i am looking for some help. Search for Thrift Store Listings in our National Charity Resale, Secondhand, Vintage and Consignment Shops Directory, Join our Online Thrifting Community, and Learn More about Thrift Shopping!. 039" gasket. One cc will be deleted for each. Pontiac Head Specs. No matter what you're driving, we have the right Pontiac 96 Heads for your vehicle New and Used Automotive Parts and Accessories On Sale. Sutherland Felt Company, a Division of Sutherland Industries, is a leading producer and converter of industrial wool felt, S. selling a pair of Pontiac 6X heads , came off running motor $250 or best offer or will trade for early Pontiac stuff. When examining any Pontiac head today it requires an open mind. com help you discover designer brands and home goods at the lowest prices online. Most steel doors outlast their wood counterparts by over 10 years, are better insulated, vandal resistant, and longer lasting than wood doors or fiberglass doors. We take a look at how this Camaro became a corner carver. IXL is the world's most popular subscription-based learning site for K–12. Worldwide supplier of new and remanufactured cylinder heads of automotive, heavy duty and industrial power machinery; ISO 9001:2000 certified. The point here is that the 5C-4 and 6X-4 heads generally have about 95cc combustion chambers. OO rapmep4349-80% di sconto - www. Both carbs have correct tags. Bds 670h - $2,026. Pokémon Individual Cards-X2 Pokemon Card GX 156 147 Burning Shadows Holo Art Secret Rare Full MARSHADOW rpuvbe5272-free shipping worldwide - www. In 1973 Pontiac started stamping extra numbers (1/4" tall) on their heads. Pontiac 400, bored. About Contact Parts For Sale. It's been a long time since I did this. Wherever your next adventure is taking you, browse Thrifty's current offers to start your next getaway with major savings. It’s a way to become a better neighbor. In light of this, the 'Year' entry, as indicated by the chart below, may actually represent the year that the heads were cast, versus the year that they were actually installed on an automobile. 0:1 compression. Find a store or request a quote online today!. Cylinder Head Flow Data @ 28 Inches of Water. Biggest selection of U S at hard to beat prices. 88 first gear 4 speed trans am. A Westboro murder in 1919 that became headline news. Pontiac Cast Iron 6x; Pontiac NASCAR 23 deg and material left on the joint face for final milling. 060 and has been filled with Poncho 400s slugs. 1969 Pontiac Trans Am Ram Air Iii Upper And Lower Pans Original Gm. Most steel doors outlast their wood counterparts by over 10 years, are better insulated, vandal resistant, and longer lasting than wood doors or fiberglass doors. On a Pontiac engine the compression ratio's were change by using different heads. American Cylinder Head specializes in gas and diesel cylinder head remanufacturing and repair for all makes and models. Ships from San Antonio, TX for $13. I used a set of these on a 455 in a '81 Camaro and was very satisfied w/the results. I would say that any added volume "above the valves" doesn't change the CR because the I and E valves are both closed during the compression and power strokes. This was not the case, and an identity crisis ensued. 1:1 compres-sion ratio. 11 intake valves. Visit Kijiji Classifieds to buy, sell, or trade almost anything! New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in London. Special deals on the latest cell phones and smartphones. Find Conversion Hi Lo Csp in stock and ready for shipping today online!. The 4X Heads really are not that much different then the much used 6X Heads are. Discount Filters offers many different types of discount air filters to help you breathe better air inside your home based on your specific needs. Classic Industries offers a wide selection of 1967 Pontiac Firebird parts, including 1967 Pontiac Firebird interior parts and soft trim, 1967 Pontiac Firebird exterior sheet metal, 1967 Pontiac Firebird moldings, 1967 Pontiac Firebird emblems, 1967 Pontiac Firebird weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. See How to Identify Pontiac's Small Chambered 6X Head for more info on ID'ing 6X heads. With some forged internals, a nice bump stick and general Pontiac machine work should I be able to run pump gas and make 500hp? Should I do some elaborate porting on the 6X. MORE! DAVE RIBEIRO Lynn, HP on the 77/78 -400 has been move up over 283 to 290. Re: 66 Pontiac Lemans 455 engine advice pontiac compression is real low on the smog motors - like 7:1 , cast rods limit just about everything you can do to them , heads will wake it up , I ran a smog motor 455 in a 2. Pontiac Cylinder Head ID Numbers. Explore the new site, shop online and learn more about our plans to open new locations. Not the 290HP we have todayThe HP gets added only to the car with that motor combo. For Mercedes Benz W463a W464 G550 Full Conversion G63 Body Kit 2018+. Blue rhino propane is more than just fuel. I have a set of hand-ported (by me) 6X-4 heads (soon to be 90cc) ported (with 2. We work together with our customers to create an enjoyable and exciting restoration experience they can pass along to their family and friends. Special Intake Manifolds (Various Manufacturers) We have put together a collection of photographs and descriptions to help you identify parts for your Pontiac. The volume of the chamber can be changed by milling the head surface. The cam is from Comp Cams (270H) and the converter stalls at 220 rpm. Thank you for your business. The Pontiac 6x heads have been ported, treated to a five angle valve job, and filled with great parts. Shop today!. At the top of the mill, a big 4-barrel carburetor rides under a familiar Trans Am shaker. Figures & People-S36 Preiser 16352 u. The 100 year old mill is full of zombies and ghosts during these four big nights. GameSir Mechanical Gaming Keyboard Z1 for PC/Mobile Phone, One-Handed Gaming Keypad with Macro Keys for FPS Game, RGB Backlighting, Anti-ghosting, Blue Key Switches, Built-in Battery (Blue Switch). Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. 50:1 in 100% bolt-on condition. Compression on paper is about 8. 455 6x4 heads - posted in General Engine (Non-Gen Specific): hi everyone, I am trying to find out the stock hp and torque specs on a 73 Pontiac 455 with 6x4 heads. wiTh Project Pure Poncho fully broken-in and its power documented (491. smokeanddagger. I would call Super Duty Firebirds in Washington and see what he has. Powerful enough to pull out tree stumps, move rocks, do demolition work, and dig trenches until the cows come home. The engines were coded with many numbers and letters. I have a mid 70's Pontiac 400 I was thinking of rebuilding. 040 inch; each 0. The reports listing is sortable by the event date, report date, city, and state. After all that and dealing with milling the intake side (or intake itself which makes it a dedicated part for those heads) as well you are gaining very little in compression on a 400. When examining any Pontiac head today it requires an open mind. 5miles isn't just a buying & selling app. ** Use sheet stainless steel block off plate. Back in the November 2008 issue, we pitted a 1976 50th Anniversary Trans Am against a 1981 Special Edition, providing a comparison of the first and last versions of Pontiac's much-loved black-and-gold "Special Edition" T/As. The Pontiac Firebird was a pony car/muscle car manufactured by General Motors from 1967 to 2002. com for Homeopathic Remedies and other Medicines and Treatments. Check out our range of Bolts products at your local Bunnings Warehouse. With a Walmart Photo account, you can upload your photos from your computer, phone, other device, or social media albums. Find nearby store locations. wiTh Project Pure Poncho fully broken-in and its power documented (491. It's been a long time since I did this. Search By Pontiac Cylinder Head Codes Chart to mill Pontiac Cylinder Heads 101cc 2. More on this 400 budget build. Front seat room gets eaten up by a console and the should-be-flat rear floor gives way to a driveshaft. If an excessive amount of material needs to be removed, a procedure called angle milling can be performed. favorite this post Oct 16 1960 PONTIAC TRI POWER MANIFOLD $225 (Hayward) pic hide this posting restore restore this posting. com For A Great Price! Design Online, Upload Images & Logos, FREE SHIPPING! Order Today!. See our Cylinder Heads - Quality Performance Aluminum Street Heads. A Westboro murder in 1919 that became headline news. Sign up for email updates. This page will show you how I took a set of 6X heads that I bought for $100 that looked like this. Muncie Super Duty M23 Super Case 4-speed Drag Racing Rock. com and wow did I strike gold. They do have the larger 2. Wherever your next adventure is taking you, browse Thrifty's current offers to start your next getaway with major savings. I wish to point out that Pontiac manufactured heads with push-in studs and screw-in studs using guide plates. Get the best deals on Pontiac Vintage Car & Truck Cylinder Heads & Parts when you Vintage and Classic Car & Truck Cylinder Heads & Parts Pontiac 6X 8 Heads B. This is my first Pontiac and do not know what combos work. A new memorial will be dedicated in honor of the six people who died in November, but the City of Portland still has work to do to prevent another tragedy. License plates dating pre- 1935 to 2018, antique tools, jars, barn doors, windows, 2 antique dressers, one with mirror, old gas jugs, and gas/oil related items, old varmint traps, hinges, old boxes, 2 IBM crates, 1960s Pontiac front clip minus hood, hand hewn Oak mantles, saw cut mantles, 1x, 2x, 4x, 6x, 8x. Bds 670h Strut Spacer Rear Coil 4 Suspsension Lift For Ram 1500 Wo Air Ride. 039" gasket. Blu-ray reviews, releases, news, guides and forums covering Blu-ray movies, players, recorders, drives, media, software and much more. Whoa, woad, hold your horses, before we begin, you need to know who is who. Elke dag een uitgebreid dagaanbiedingen overzicht en alle aanbiedingen op een rij. Locomotives-RailAD 1018- E-Lok 1116 ÖBB Ep6 Eurovision DC Analog edition limited Taurus osfjij6473-fast shipping and best service - www. The stamped number was the last digit of. Wherever your next adventure is taking you, browse Thrifty’s current offers to start your next getaway with major savings. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. Engine Tech - Pontiac 400 build Ideas - I am getting ready to do a 400 build for my 65 GTO. Skip to content. My mill is a bone stock 69 Pontiac Q jet with 6X heads. grade felt, polyester felt, and die cut felt products. It was bored. Fenix Rc40 2016 Cree 6x Cree Xm-l2 Leds 6000 Lumens Searchlight Flashlight Torch 20pcs Xm-l2 - $307. The rule of thumb for boring bars, (lathe or boring heads) is, the stick out must not exceed 4 X the diam of the barit can go to 6X the diam of the bar for a finishing cut, but in all cases you will get deflection if more than 4 X diamand you use the biggest diam bar from mounting point to actual bar diam. Visit Kijiji Classifieds to buy, sell, or trade almost anything! New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in London. At CVS Photo, you can turn your photos into gifts and pieces of art that will be cherished for years to come. These head numbers represented chamber sizes. Heads can also be milled to increase the compression ratio. Powerful enough to pull out tree stumps, move rocks, do demolition work, and dig trenches until the cows come home. Buy & sell your used stuff for free on UsedRegina. Van particulieren of met garantie van een autobedrijf. If a valve seat is damaged, cracked, loose, receded or too badly worn to be recut or reground, it can cause a variety of problems: loss of compression, valve burning, valve failure, valvetrain wear and breakage, even head and valve damage if the seat comes loose. Blue rhino propane is more than just fuel. They are usually stamped on the machined pads by the valve covers. SD Performance spends an extensive amount of time on the dyno, at the track and on the street to develop some of the best performing Pontiac ported cylinder heads on the market today. All chamber sizes should not be assumed but cc'd to confirm the chamber size. Here's another item to consider. 040 inch; each 0. This page will show you how I took a set of 6X heads that I bought for $100 that looked like this. The volume of the chamber can be changed by milling the head surface. Pontiac V8 Engine History: 1955-1981 February 19, 2015 by Pontiac DiY The Oakland Motor Car Company was founded in Pontiac, Michigan, in the early 1900s, and within a few years, it became a division of the newly formed General Motors Corporation (GM). What engine do I have? Do I have big valve heads? Pontiac made it easy to know what is sitting between the fenders of your Pontiac or on the ground at the local salvage yard. CLICK IMAGE FOR LARGER VIEW. Sorry this page is a little long. 88:1 with a. More commonly known today as the means of identifying 6X heads, the 4X head was among the first Pontiac heads to receive an external application stamping. Let Overstock. The point here is that the 5C-4 and 6X-4 heads generally have about 95cc combustion chambers. These head numbers represented chamber sizes. Com is a One-Stop Web Destination for all of your Thrift Shopping Needs. I used a set of these on a 455 in a '81 Camaro and was very satisfied w/the results. And I currently have a set of 6x heads, i am going to have 1. We work together with our customers to create an enjoyable and exciting restoration experience they can pass along to their family and friends. Elke dag een uitgebreid dagaanbiedingen overzicht en alle aanbiedingen op een rij. Posted 1 year ago in Auto parts. Although, I've made real nice power with the compression in the high sevens. com help you discover designer brands and home goods at the lowest prices online. The 6X-4 heads aren't any older heads than 6X-8 heads, if that's what you mean. topwirelessdoorbell. 5miles isn't just a buying & selling app. Most steel doors outlast their wood counterparts by over 10 years, are better insulated, vandal resistant, and longer lasting than wood doors or fiberglass doors. Engine Tech - Pontiac 400 build Ideas - I am getting ready to do a 400 build for my 65 GTO. 88 first gear 4 speed trans am. The May 7, 1973 changeover date is Motor Unit Number 709986 assembled on or about May 7, 1973 May 7, 1973 is the head assembly date, NOT the casting date. Classic Industries offers a wide selection of 1967 Pontiac Firebird parts, including 1967 Pontiac Firebird interior parts and soft trim, 1967 Pontiac Firebird exterior sheet metal, 1967 Pontiac Firebird moldings, 1967 Pontiac Firebird emblems, 1967 Pontiac Firebird weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. 95599999999999996 0 1 0 31302. Sutherland Felt Company, a Division of Sutherland Industries, is a leading producer and converter of industrial wool felt, S. Although, I've made real nice power with the compression in the high sevens. In 1973 Pontiac started stamping extra numbers (1/4" tall) on their heads. The point here is that the 5C-4 and 6X-4 heads generally have about 95cc combustion chambers. Heads can also be milled to increase the compression ratio. Recently, my father and I started working on his 1965 GTO which has the stock 389. Long Tube headers with 3" race exhaust. It is safe to mill up to. I still wonder why everyone got ate up with the 57 chevy. Miles exempt. GM High-Tech. Pontiac 1973-1974 Cylinder Heads; No "H" stamp on early 1973 heads. Discount Filters offers many different types of discount air filters to help you breathe better air inside your home based on your specific needs. IXL is the world's most popular subscription-based learning site for K-12. I will be using hedders. Care should be used when milling production heads because the castings are generally none too thick. Pontiac 400 pistons and cam. GameSir Mechanical Gaming Keyboard Z1 for PC/Mobile Phone, One-Handed Gaming Keypad with Macro Keys for FPS Game, RGB Backlighting, Anti-ghosting, Blue Key Switches, Built-in Battery (Blue Switch). This handy tool is for both professional engine builders as well as the amateur. 11 intake valve and will therefore flow better. This jacket is for those times when you really want to turn heads. Bing helps you turn information into action, making it faster and easier to go from searching to doing. I didn't go w/the 1. Pontiac Cylinder Head ID Numbers. I used a set of these on a 455 in a '81 Camaro and was very satisfied w/the results. These head numbers represented chamber sizes. Good prices on conversion hi lo csp and other comparable items. Find nearby store locations. After years of extensive R&D both on the flow bench and on our track, we have developed some of the best performing round port and D-port cast iron Pontiac cylinder heads ever. Here's another item to consider. The engines were coded with many numbers and letters. 65's on "normal" Pontiac heads you will however need to elongate the pushrod passages in the heads to make them wider top to bottom, otherwise the pushrods will rub. American Cylinder Head specializes in gas and diesel cylinder head remanufacturing and repair for all makes and models. The '77 6X heads do have the more desirable 2. See How to Identify Pontiac's Small Chambered 6X Head for more info on ID'ing 6X heads. AOL latest headlines, entertainment, sports, articles for business, health and world news. And I currently have a set of 6x heads, i am going to have 1. Don't hold me to that number. Click Here for Edelbrock Aluminum Head Installation Sheet PONTIAC HEAD CHART CASTING NUMBER YEAR FACTORY APPLICATION CHAMBER VOL# CC'S EXHAUST PORT NOTEWORTHY ATTRIBUTES 528511 1958 370 62 D-Port 1. All heads can be safely milled. These already have screw-in studs, hardened seats and 2. Heads with the small "a" designation are guaranteed to be hardened seat heads. Although, I've made real nice power with the compression in the high sevens. For over 30 years, American Musical Supply has been the choice of millions of customers for their musical instrument and gear needs! Our inventory includes a wide assortment of electric and acoustic guitars, amplifiers, live sound gear, DJ gear, recording equipment, drums, keyboards, accessories and more from hundreds of great brands. Rest assured, when you buy a rust repair panel from Mill Supply, you are going to receive the best there is in the industry.