pontiac 400 block codes

The P0304 code means that cylinder 4 is misfiring or is randomly misfiring. What specific section of the world do cannibals do not live? 400 blocks with 557 casting numbers have thin main journals. #9773155 block with a date code of J23=October 2, 1963. As a result, there was no lead (or reduced amount) in the gasoline, which reduced the octane rating and resulted in lower compression. I wish I could remember for certain..but I have owned several 4 bolt 400 ci blocks, maybe 4 or 5. A=January B=February C=March D=April With the 6x heads it is most likely a 1977 350, 6X's were found on 350's and 400's. It is usually stamped into the metal and will have several letters and numbers. This is not a SBC, and I have never heard of it. Its robust design allowed immediate adaptability to future displacement increases. Can we see pic of female inserting a tampon? I want to build my bike with 450 HP with new comp cam with head ported and milling, new edelbrock rpm intake 800 carb roller rockers, and 6,800 HP. 0000046731 00000 n The 2009-2012 Pontiac 455 can achieve a top speed of 155 mph and an HP capacity of 450 on a 9.4:1 CR engine. It's most likely that someone other than Pontiac ground off the "4" and hand stamped a "5 (and the "5" is not even the correct font)" in its place for some nefarious purpose. Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. Fed law mandated the partial VIN stamp from '68 up. A forum community dedicated to Pontiac GTO owners and enthusiasts. 0000055935 00000 n Thanks for your time. I'd be interested to hear any comments you might have on any aspect of the subject. On blocks produced between 1955 and 1963, the casting code can be found on the passenger side of the block. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! In later years, Pontiac added a corresponding VIN number to the block. Are you allowed to carry food into indira gandhi stadium? This information is stamped into the metal of the head and can be decoded using a chart. Advertisement January 17, 2023 by Abdul If you're looking to identify the engine size of a Pontiac block, you may be wondering where to look. The casting number is found on the valve springs of GM cylinders, and it is a six to eight digit number. 400 CID. . It started out with a 2 (for Pontiac), the last digit of the year and a letter for the assembly plant followed by the last 6 digits of the vehicle VIN. Enjoy banner ad-free browsing with Pontiac GTO Forum Plus. #481988 DC E103 (5). It was an evolution of the Pontiac 389 engine, and was the largest . Something else that I observed more recently, the "S" of the "WS" is faintly stamped and almost invisible, while the "W" is stamped more normally. The block is a 69 428. 0000009681 00000 n The location of the casting number can vary depending on the type of block, but it can usually be found close to the engines oil filter, or on the left side of the cylinder block. If youre doing a big-block Chevy, youll want to be extra cautious not to jeopardize the bad ports velocity characteristics. A VIN number was added later on to the block, and a matching block number was later added. 0000012938 00000 n Its a lot better to invest in an aftermarket set than to spend a few hundred dollars on iron production heads. . Casting numbers are used by Pontiac to identify the year, make, model and engine size of a particular vehicle, and can be found stamped on the cylinder head of most Pontiac engines. 0000003942 00000 n The software can assist you in determining whether or not a port is suitable for torque and horsepower. 1959 and earlier blocks, of ANY displacement, did not have this transfer lug. Full VIN's were stamped on the block on '63 and EARLIER engines. If the heads are fitted with screw-in studs, you might be able to fit a chamber size smaller than the body. Drilled motor mount holes provide information about when the engine was cast and how it was cast. All rights reserved. http://www.yearone.com/updatedsinglepages/Id_info/pontiacengineid/pontengid1.html, http://www.yearone.com/updatedsinglepages/Id_info/pontiacengineid/pontengid2.html. As the open valve opens, it creates a flow window, or valve curtain, which provides flow area based on its circumference at the flow diameter times the amount of total valve lift. WW,WV,WR,XS,YZ,XP 428 360 HPWG, Y2,YY 428 368 HP, WJXK,Y3,y3,YH,Yh,Yk 1968 350 265 HP, and Yk 1968 500 250 HP. 0000017793 00000 n 0000056471 00000 n Go ahead get down there and look. Calculating cylinder head casting numbers can be done by first locating the casting number on the head, which is typically found on the top of the head near the valve cover. Starting in 1965 Pontiac began using a 2 digit letter code. The use of quality components has always been a key component in the success of the Pontiac engine. most all 350's had the 6x 4's . This code is important to identify the correct replacement parts that are needed for the engine. You look further, scrape away the grease and low and behold you spot the casting numbers 428 between the two freeze plugs on the driver's side. Enjoy banner ad-free browsing with Hot Rod Forum Plus. as follows: 400/180hp Automatic: YA,YU (standard L-78 engine) The 10A 389 303 HP, 25K,26K, 27P,28P, and 25A 389 303 HP are all examples. The first digit of the code indicates Manual or Automatic transmission. Pontiac used the YB code from 1975-1977 on 350 engines. When it comes to power, a larger body is not always better. Copyright 1997-2004, Bill Boyle. A crankshaft sensor determines the engines position by reading two different readings on reluctor wheels. Check if Pontiac has issued a Factory Service . These motors usually have a large "70" at the rear of the block. Pontiac grabbed a 389 block used in the high-performance Catalina, as well as the Lemans and GTO, and punched it out to an even 400 cubic inches. No modifications, rare sunroof, and factory stock wheels. Here they are: Printable PDF Clean body Silvias are extremely hard to find especially an original t. 0000015080 00000 n It is the 49-state casting used on all '73-74 400 and 455ci engines. We use cookies and browser activity to improve your experience, personalize content and ads, and analyze how our sites are used. Here is what I am confused about, I was under the impression that the YS code 400 blocks were essentially the same . Where is the tallest General Electric Building located? 0000000016 00000 n By examining the crankshaft sensor, you can easily tell if you have a crankshaft wheel or a reluctor wheel. The Fora platform includes forum software by XenForo. 1973 Pontiac 455 ZC Code Block $550. For flow data on different heads, choose those with the best E/I at the midpoint of your expected valve lift. A pair of drilled bosses on the exhaust port side of a 4X or 6X head will be used to mount the A/C bracket (over the end exhaust port). 1977. So you take a peek under the distributor and see several casting numbers but the last one in the string is a 9. 1967 and newer had 3 freeze plugs per side. Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more! The stock Pontiac V-8 block is constructed of cast iron. 400ci engine with recently rebuilt three-speed automatic transmission. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Each build is hand assembled one at a time. i found somthing on yearone.com i was wondering about the 6x heads did those go on anything other than pontiacs because the numbers i have are not matching upis it possible that you guys know anything about these numbers? Horsepower: Cubic Inches: Trans: Code: Compression: Cam: Heads: Carb: Year: 215: 389: M: 02B: 8.6: 111: 543796: 2: 64: 215: 389: M: 02B: 8.6: 111: 543796: 2: 64: NA . 409GUY has a 77 YB 350 block. 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The numbers lists I have found on the web and in my books tell me it could be a RA III or in some cases a RA IV. Seems reasonable so far. The AFA compression ratio is important, so the lower the head, the better. Until 1967, the valves in a stock Pontiac cylinder heads pistons were at an angle of 20 degrees from the piston centerline, and it was later revised to 14 degrees. Many people are familiar with the nameplates screw-in studs, which were introduced on performance models in 1967. If the heads are from a 455, they can be too big. endstream endobj 85 0 obj<>stream What years of time was the separate but equal doctrine the law of the land in the US? At the rear of the engine at the top near the distributor hole can be found the important casting numbers that reveal the year of manufacture--the birth year. Filters. This code will tell you the year it was to be used. They are an important tool for anyone working on a Pontiac engine, and they are essential for properly maintaining and repairing a Pontiac. Pontiac block casting numbers can provide a wealth of information about the engine block, including its year of manufacture, displacement, and other important details. Starting in 1970, most blocks were cast with 5 motor mount holes with the mounts using 2 bolts in line with 1 higher up in the middle.Some 1977 and later blocks only had 3 holes that used the newer mounts. The code can be found on the ledge behind cylinder eight at the rear of the block in 1968-81 blocks. The arms rocker arm and push rod placement were improved, allowing for increased power and efficiency as a result. I don't have any literature showing that kind of info. . Sign in now to prevent your Saved Listings from expiring. Take the time to identify the correct reluctor wheel, which will aid in the engines optimum performance. another number that i got ( on the front of the motor) right under the passanger side head was 173348 YB. You should be able to accept the as-cast port volumes if you clean up the ports as needed. Blocks made between 1964 and 1967 will require a casting code on the distributor pad. The third digit represents the assembly plantthe last digits match the sequence number of the car's VIN. The 1970s compression ratio was done to reduce emissions, not to reduce fuel consumption. In the case of a problem, make sure you have the correct reluctor wheel installed. Search Interface. 1973 Pontiac 400 X4 Code Block sold. Its an important piece of information that can help keep your Pontiac running in peak condition. What was the date of sameul de champlians marriage? PH: 800-267-3940 After the letter are two digits; 01=1, 25=25. Friday 8am 3pm EST, Warranty Whether your Airboat is used for racing, pleasure, fishing or hunting, we can design the right engine to fit your needs. Are you looking to buy your dream classic car near Los Angeles, California? It is important to have the engine code when ordering parts for the Pontiac. Hi guys. If you are in the market for an Airboat engine to re-power your boat, Proformance Unlimited wants you to know we are committed to designing you the ultimate engine combination. 0000051703 00000 n When we consider the 85 percent rule, the flow diameter of a 2.02-inch intake valve would be 1.717 inches. Also i was told the the 6-x heads are more hi perfromance than the 4-x could somone please explain this too me? It diagnostic codes 62, 63, 64 or 65 occur, an electrical failure in she Today more and more Pontiac enthusiasts are considering engine swaps as an easy and economical way to improve power in their Pontiacs. How can you tell is a firm is incorporated? Marine Warranty endstream endobj 67 0 obj<> endobj 68 0 obj<>/Encoding<>>>>> endobj 69 0 obj<> endobj 70 0 obj<>/Font<>/ProcSet[/PDF/Text/ImageC]>>/Type/Page>> endobj 71 0 obj[72 0 R 73 0 R 74 0 R 76 0 R 77 0 R 78 0 R 79 0 R 80 0 R 81 0 R 82 0 R 83 0 R] endobj 72 0 obj<>/A<>/Border[0 0 0]>> endobj 73 0 obj<>>> endobj 74 0 obj<>/Parent 23 0 R/F 4/P 70 0 R/Q 2/T(f2)/DA(/Helv 12.0784 Tf 0.2 0.2 0.2 rg)/FT/Tx/Type/Annot/AA<>/MK<>/AP<>>> endobj 75 0 obj<>/Type/XObject/BBox[0.0 0.0 131.0 21.0]/FormType 1>>stream A set of 4X heads should suffice, assuming 98 CC chambers are used. (L78-W72 engine) There were also two block castings in 1978 the Check if Pontiac has issued a Factory Service Bulletin for the P0440 code (2013 - Up Models): Check here. 0000014222 00000 n This chapter contains a number of formulas that should be taken into account. Has anyone found a 1970 9799915 block with a "YZ" stamp? These codes below may not be as accurate as my Engine Code Search page in link above. A YB, YB, Y YC, YYD 400 290 HP is equivalent to a YB, YB, Y YC, Y YC, Y YC, Y YC, Y YC, Y Y Y YC, Y Y Y, Y Y The XV,XU 400 293 has an excellent quality of construction. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. the standard L78 cars also received the XX block, it was basicly HOME. It was a large displacement V8 engine, with a displacement of 400 cubic inches. Additionally, the code can be used to determine the engines horsepower, torque and other important specifications. A list of block casting numbers is located < click here> Date code letter deciphering: The date code is 4 digits. It was located on the front of the block, on the passengers side, at the bottom near the timing cover. 0000056299 00000 n How is it possible for mantle rock to flow? [Block belongs to enthusiast Will Baker.]. With a 6cc piston on my 455, I was going to get almost 9:11. :cool As Bear pointed out, the engine block was originally in a GTO (WS Code). It is a 3-holer with two blank pads (no holes). Why did derick faison leave td jakes ministry? No, a Pontiac 400 and a 455 are not the same block. When the valve lift is increased by 10 percent, the flow area and valve lift are both increased. any help would be apreciated. Could it be 500810. As far as I know, there was nothing to it. HMkA+? While the body is out for blasting, I'm going thru the rest and have come up with mixed info from local sources regarding the engine. These pads can be drilled and tapped if necessary to accommodate a different engine mount. poop ANSWER: Wow really intelligent response! The other block is a "5-holer." The engine size of a Pontiac block can be found on a casting number or code located on the side of the block. An increase in flow would necessitate the use of a flow bench. screen. The code is a series of numbers and letters that identify the specific engine model, engine size and production year of the vehicle. INT PH: +1 321-430-2465 luck of the draw. -charlie Burnin rubber.raising hell! 0000002883 00000 n Sign in now to prevent your Saved Listings from expiring. - Y*NSV~i The VIN of a car matches the sequence number of the digits. }IG$@/d8b t`B&vuFoA|s8~ startxref The P0440 code means that the control module has detected a leak in the Evaporative Emission (EVAP). However, the last digit of the casting number (5) is a stamp and not a part of the mold. 320,319,350 HP 2.50 c. 1965, 320,319,350 HP 2.50 c. 1965, 320,319,350 HP 2.50 c. 1965, 319,319,350 HP 2.50 c. 1965, 319 A standard 72cc bus has a 2.11/1.77cc capacity. . Pontiac brought back the earlier, stronger block (and upped the power rating to 220 hp). Cancellation/Return Our dedication to detail and quality parts is what separates us from the rest. Anyhow, they are as follows: 400/180hp Automatic: YA,YU (standard L-78 engine) 400/220hp Automatic: X7 (L78-W72 engine) 400/220hp . Copy. Why did Frederic Forrest leave 21 Jump Street? What does it mean when you call a Mexican mighty kong? They also cast the engine size on the sides of the block,usually in front of the motor mounts or between the freeze plugs. I do remember that one block had no cast number at all..not ground off, actually missing the number. Flow is a leading manufacturer of airflow test benches and flow bench equipment. See Results . . Here's one for you gurus. Alexander Automotive of Downtown Franklin. Pontiac blocks with only 2 bolts holes per side were cast before 1970. It almost looks like it may have been ground down before it was stamped. Checking a Chiltons manual that covers 1969 tells you that the motor was rated at 370, and powered a 4 speed Grand Prix. How many edges and corners does a cucumber have? Later determined it must have been an early 1968 block based in the cast date and other details. Unless you have portmapping and a matching cam, an iron head 455 cannot reach 5200 horsepower. What is the word that goes with a public officer of a town or township responsible for keeping the peace? Cleaned, magnafluxed & ready to ship. Std. Block codes are were now dated ex. 0000002068 00000 n These were decent factory forged rods, but you might not be able to get them at a local dollar store when they are available for less than half the price. The ability to identify and mill Pontiac cylinder heads is critical to keeping your engine running smoothly. Also, from this and also another 400 I have kicking around I ended up with two 8-hole water pumps which have very different impellers. The Top 10 best classic Chevrolets ever made. New fuel tank, rebuilt carburetor and brakes, 15" Vogue tires. To receive accurate engine readings, you must have the proper reluctor wheel installed. The equation narrows it to a '69 block. We are a one stop shop for all your complete drive train needs. The 2 letter code was introduced in 1965. There is no displacement stamp for 421, 389 or 326 blocks. Casting codes for from 1964 to 1967 are found on the distributor pad, except the 421s Casting codes for from March 1967 on are found on the rear of the block just behind the number 8 cylinder z x" As a result, every milled piece reduces the combustion chamber by about 1cc. 0000001735 00000 n In addition to serving as a workhorse, HP XC 400 HP WU,WZ,WQ,WI also provides a significant amount of power. The 1968-1969 RA III engines were drilled for 4 bolt mains. The only way to get the pop up pistons for a 113cc head is with a pop up piston. After youve identified the reluctor wheel, you can verify that it is installed and functioning properly. With our strict standards, you can be rest assured that you will receive a 100% perfect engine that will stand up to the test of time. Sorry, but you really can't accurately determine the year of the engine by merely knowing the engine code. 0000050758 00000 n The lone raised machined boss with a stamped number will be at the other end. 0000008755 00000 n This site created, maintained, and hosted on Apple G4. When compared to the cross-sectional area of the port, the saturation point of the port in terms of valve curtain area. poop ANSWER: Wow really intelligent response! 0000030729 00000 n Furthermore, aluminum heads dissipate heat more quickly, allowing you to use compression ratios with less risk of detonation. another number that i got ( on the front of the motor) right under the passanger side head was 173348 YB. Getting the right information and knowledge can be difficult, but if done correctly, you can easily decode a Pontiac block. Is your current Chevy, Ford, Pontiac, or Chrysler engine tired and worn out? %PDF-1.6 % 1969 and older blocks had 2 motor mount holes per side. . This code will provide the year, model, and displacement of the engine. Thank you for taking the time to look at our engine products. Check out my new Pontiac Engine Search page.Just input the engine code number and it will find it for you.Or search by year,CID,head code,HP . MonThur 8am 5pm EST Milling of cylinder heads from the 1970s could usually take place with a mill as small as 0.060-inch. If J 165 indicates a date of September 16, 1965, it would be appropriate. i.e. All 455 blocks have a 5 hole pattern and will fit pre 70 chassis. They will be able to assist you in understanding and evaluating the wide range of cylinder heads available for your project. Pontiac used two-letter engine codes in different years in various cars. The casting code is 481988XX to distinguish the W72 from the '71-'75 castings that have 481988. 9799916: 1970: 400: HLA0b_`X_^EmM@PFKUz-1"jKXts,4wnD[7L&n5Abl+ yUV These are all drilled and tapped. How Do You Read The Date Code On A Pontiac Head? The WS 400 numbers matching block on my 1970 Trans Am (that I have owned since 1979) is one of these! Proformance Unlimited Pontiac 400CI Crate Engine Review Doug and Steve,I can't thank you enough for building my 1970 Pontiac 400 with 10.75 to 1 compression, new Edelbrock performer rpm manifold, new Edelbrock 750 carburetor, and speed pro forged pistons. A compression ratio of 13-14 is not too different from what the engine normally requires. The predicted peak engine speed can be calculated using the following formula and one of the three VE factors. In addition, from 1969, Pontiac began to use a two-digit year number on the distributor and, from 1969, the engine size was also cast on the sides of the block, usually between the motor mounts and between the freeze plugs. JavaScript is disabled. 0000059060 00000 n 1964 and up now had block mounted starters . Shop Amazon - Contract Cell Phones & Service Plans. To find where the Engine code/id can be found. In the long run, it can be beneficial to your engine to keep this in place. 0000004480 00000 n The block casting number, 9790071, is for a 1968-1969 400 engine. Pontiac head casting date codes offer valuable information about your engine, such as the year it was produced, the location of the foundry, and the exact day of the month it was cast. The fourth digit indicates the year of the casting. The Quality Of Our High Performance Engines Are Second To None! Ok the block casting number ( by the disttibuter) was 600810 or 600310 it also has 6-x heads. The J 765 is either a unique number used in production or not a date code, depending on how you look at it. A 370-hp Ram Air IV was introduced for the 1969 and 1970 model years. Pushing 0.015 inches from the deck surface causes a reduction in chamber volume by 1 cc, increasing compression. See Chart Below for actual codes. Are you looking to buy your dream classic car near Los Angeles, California? The bore is .060 and will need to be sleeved. |1Qg$c|[K`p,[AS?u 0000017829 00000 n What Makes the 400 Pontiac Special. Check out our customer reviews and crate engine videos and you will see that our muscle car engines will exceed your expectations. Nov 30, 2013 Here's one for you gurus. It is not possible to use high-octane gasoline at low octane levels. The parts we are using in these Airboat engine builds are hands on selected and tested to ensure its reliability. What is 35 degrees Celsius in Fahrenheit? BG.F%p. The one with the short and straighter impellers was in the engine I have been writing about. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. User Submitted Video. Runs gre. Being on the worlds stage, Proformance Unlimited is one of the most sought after Custom Built Turn-Key Performance Crate Engines builder. The Pontiac 400 was a big block engine, first produced in 1967 by Pontiac Motors. 0000014854 00000 n The head code location for Pontiac vehicles is usually located on the front of the engine block.
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