Chevy 261 head casting numbers. Thinking about purchasing a 23 or 24 GMC Sierra with the 3.

Chevy 261 head casting numbers dec. May 7, 2025 · Well, my 2025 GMC with only 900 miles has a failed transmission. Engine Casting Codes & Serial Numbers 1951 Chevrolet 235 low-pressure inline 6 cylinder engine NOTE: these photos are from a 1951 235 engine from a 6000 series truck. com Email: iracez28@stc. Oct 19, 2022 · Do you wish to know the casting numbers for big block chevy? Find out everything about casting numbers with our detailed chart and more. The Head Casting number is located outside of the Valve Cover in plain site on the Drivers Side. Our images cover Chevrolet small blocks since 1955. Visual features like block design and oiling systems also help. Head in pictures is what you will get. 14 (251 Votes) This is my complete and comprehensive master work on obtaining the best speed & performance from your Chevrolet 1954-62 (full-pressure oil) 235” & 1954-63 261” in-line six cylinder (L6) engines (as well as the older 216” and splash-oiled 235”, although in less detail). YEAR NUMBERS BLOCK CASTING NUMBERS 1937 1 to 1187821 838101 838710 1938 1187822 to 1915446 [FLINT] B1 to B10502 [BUFFALO/ TONAWANDA] 838710 1939 Location of casting number is actually in front of the fuel pump. I have no Oct 20, 2024 · Chevy inline-six engines are identified by casting and serial numbers on the block or head, revealing engine size, year, and model. The original color was yellow, indicating t Chevy Chevrolet small block V8 engine casting numbers - WaywardGarage. Inline (6 cyl) Engines To determine the year of 235 or 216 engines, look just above the starter on 235 or maybe remove VCCA Home Forums TECHNICAL - 1945 AND NEWER 1949-1954 235 or 261 or Frankenstein Apr 25, 2025 · The significance of head casting numbers on Chevrolet 350 engines can’t be overstated for enthusiasts and mechanics alike. The most I've been able to determine is tha Nov 15, 2024 · To identify a GM 6-cylinder engine, locate the engine code stamped on the engine block, usually near the front for inline engines or by the cylinder head for V6s. net Note: Pat Smith is a long-time tech advisor for Inliners International. 1954-1963 Chevrolet 235/261 inline 6 cylinder (NOTE: these photos are from a 1960 261 engine; however, 1954-63 235 & 261 codes should be in the locations shown below) CHEVROLET 6-CYLINDER 216, 235 AND 261 CYLINDER BLOCK CASTING NUMBERS 1937 to 1962 Also refer to the following website for additional information: http://www. , # mains] Possible Stamped Serial; Numbers 14001133 Chevrolet 76-80 292 =3D 7 1782594 Chev 36 ? 37 1970 Chevrolet 64-67 292 =3D 7 2135412 GMC 46-54 200, 270 =3D 4 2193980 GMC 52-54 302 2324002 GMC 55-62 248, 302 2324003 GMC 55-63 270 2324004 GMC 55-62 302 2404929 GMC 55-63 270 =3D 4m GMC - The Numbers Game - inliners. I had to have it towed to the dealer. After a reprogram of The leading Chevrolet community for owners and enthusiasts. Free shipping in 48 states. Last updated: 12/12/1997 Author MadMike Maciolek Email: m_maciolek@vmsnet. His career includes stints as a mechanic/machinist, automotive instructor, and engine builder. org Numbers Aug 7, 2008 · What year is this Cylinder head casting number 3837161? Tim's Trucks homepage 216 engines | 235 engines | 261 engines 1954 Documents http://www. Cross-reference this code and any visible casting numbers with GM databases or parts catalogs to confirm the engine’s type, production year, and specifications. The Chevrolet Small Block was introduced in 1955 Photos and diagrams of Chevy casting number locations for blocks and heads for big block and small block V8 engines. The Block Casting number is 3836848. Also can anyone tell me chamber size and valve Hi All, I have a 1953 3600, but it does not have the original 216ci engine. Must for the perfectionistsSold each. We’ll attempt to provide the best of them to you, rather than recreate the information here. I. Pat is the crew chief for Dyson Racing, reigning Grand-Am Sports racing champions. These seven digits are located on the right side between the fuel pump and starter except for 1954 where it is located forward of the fuel pump. Here’s how to find it, and what it may mean. Jul 9, 2020 · The casting number on your vehicle may be difficult to find, as its location can vary between vehicles. It included a bushing to adapt the smaller '55 temperature sending unit to the larger hole used for the '56-57 sending unit. Only Chevelle-specific information is listed here to conserve space. Jul 16, 2023 · 2012 Chevy 3500HD LTZ, Crew Long, Z71, EFI Live by No Limit Automotive and Performance, WCF 475 Over Stock, 5" Flo~Pro Turn Down Exhaust, Fass 150, WCF CP4 Delete, Sportsman CP3, Torque Converter, 275/70/18 M55 on Fuel Mavericks, White Line-x rocker panels, White line-x Bushwacker pocket flares, DDM Tuning HIDs 4300k, Hi/Lo Beams, Custom Sep 24, 2024 · S-10 & Blazer - S-10 & Blazer - The ultimate forum for latest news, discussions, how-to guides, and technical help on the Chevy S-10 & Blazer. Numbers - inliners. I drive about 10 miles each way to work, mixed freeway and city. Is head 3836848 actually more desirable? If so, why? Hi, I was kicking around a junkyard and found a 55 or so Chevy Dump Truck with a 235/261 engine. Chevy Chevrolet small block V8 engine casting numbers - WaywardGarage. For some reason the 848 and 850 numbers appear on those heads. Aug 17, 2023 · Head casting number 3835913: Engine model: 235 Years of production: 1954-1955 Head casting number 3836848: Engine model: 235 Years of production: 1956-1962 Head casting number 3836850: Engine model: 261 Years of production: 1956-1962 Engines Lists Step 1: Find an engine list Look for reliable engine lists specific to Chevy 6-cylinder engines. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Search engine casting numbers to identify parts and specifications Enter the casting number and click search. enet. Are all of the charts wrong or was this motor stamp Note: Pat Smith is a long-time tech advisor for Inliners International. 2 cc's 3703570 95. Casting numbers near the distributor are "F1210PV" - couldn't find any info on PV rpo codes Block number is "3850817" which comes back to 1962-1978 230/250 "CON 2" followed by "L34" - I assume means December 3, 1964? Chevrolet Big Block Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2. Rather, the engine is a 235ci. The problem I have is that the block codes for both the engine block (G 29 0) and cylinder head (G 21 0) would both indicate a 1960 date from my understanding. The most I've been able to determine is that the engine is a standard 235 model and was made on Feb. 1. See chart below. 0 Duramax. This 126 page pocket size booklet lists the numbers on blocks, heads, intakes, exhausts, and water pumps. I really like this motor and CHEVROLET Technical Service Bulletins Check for technical service bulletins (TSBs) on your vehicle by make, model, and year. 3836848 GM 5 Jul 22, 2007 · i need help with this motor. Chevy small-block engine head casting numbers identify the model year, horsepower range, valve and chamber size and the size of the intake and exhaust ports. Watch for the "Captain Bars! Casting Numbers The first place to start when researching information on an engine is a list of GM casting numbers in the appendix. Oct 17, 2010 · Gene or anyone else that has any input, maybe you can clear up the history of the mid 50’s and up 235 heads. The casting number on the block is 3769925 which is for a 1958-62 261. The date code on it says it is a 55 261 head. Positively identifies the Chevrolet the 6 cylinder and their parts. . Aug 15, 2024 · Chevrolet engine casting numbers are unique identifiers stamped on engine blocks for identification purposes. 216 cu. 2 cc's 3836850 86. It has a car sitting partially on the hood so I could Jul 22, 2007 · i need help with this motor. May 21, 2023 · We've tried to boil down the GM part numbers, casting numbers and other LS cylinder head information into an easily usable (and ideally definitive) cross reference. Model specific subject matter experts, classified ads and more. At first, they thought it was the trans PCM module and replaced it. Casting code from 1956-1963 (maybe late 1955). In fine Craigslist shopping form, he offered $75, made the deal for $80, and went to pick up this engine. I believe this is a '55-'62 235 with pressure lubrication. YEAR NUMBERS BLOCK CASTING NUMBERS 1937 1 to 1187821 838101 838710 1938 1187822 to 1915446 [FLINT] B1 to B10502 [BUFFALO/ TONAWANDA] 838710 1939 1915447 to 2697267 B10503 to B105461 838941 1940 2697268 to 3665902 B105462 to B221935 839132 1941 AA1001 to AA1163720 AC1001 to AC19549 839400 PREFIXES 1942 2AA, 2AC, BA 839770 1942 to 1951 CHEVROLET 3837012 1942 to 1953 CHEVROLET TRUCK Jul 28, 2003 · Engine Casting #, Make, Year, [# cylinder, C. 88 exhaust May 29, 2013 · Ive got a set of clean and freshly rebuilt SBC heads casting number, 14079261. F624L SBC Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. Mar 2, 2004 · Casting Numbers #90120 03/02/04 01:07 AM Joined: Dec 2001 Posts: 10,379Likes: 1Vancouver, WA AntiqueMechanic OP Technical AdvisorChatMaster - 10,000 OP AntiqueMechanic Technical AdvisorChatMaster - 10,000 Joined: Dec 2001 Posts: 10,379Likes: 1Vancouver, WA This is a new string established for d2d2. Does anyone know of a web site for head casting numbers. over a Feb 19, 2023 · The casting number has been ground off this 261 head. com - Hot Rods - Musclecars - Project Cars - Farm Trucks Mar 18, 2014 · 261 Jobmaster engine id The 1947 - 1959 Chevrolet & GMC Pickups Message Board Does this tell me if it's a 235 or 261? I heard it's difficult to tell them apart. I believe this is BM 479639, but not sure if there is a letter in front of the BM or not. Looking for Chevy casting numbers ? This is a very complete list of numbers to help identify your Chevy engine block, heads and crankshaft. The serial number near the distributor and casting numbers on the block provide key details for restoration or repair. Chevrolet VIN Decoder - Decode your vehicle identification number Jan 4, 2025 · 2025 GMC Sierra 1500 Denali Ultimate LZ0 Reactions: Oh Chevy Diesel Save Share Reply Like J Nov 15, 2024 · Number of affected vehicles: the Chevy Silverado pickup truck has the largest population of affected vehicles in the recall, with 66,897 Chevy Silverado 1500 and 166,541 Chevy Silverado HD trucks involved. These numbers, found stamped on the heads of Chevy small-block engines, serve as a detailed fingerprint, allowing us to identify the capabilities, design changes, and applications of any particular head. What s Engine Serial Number is Located on the right side of the engine on a boss just to the rear of the ignition distributor for 216 and 235 c. Mar 17, 2025 · Hello, new to this forum. Other other low-pressure (babbetted rod bearings) codes should be in the same locations shown below. " He was referring to head with casting number 3836848. We’ve had a discussion going on about the 3835913 (casting no. inline 6 cylinder engines. When you have found what you suspect might be a 261, check a few specifies to verify you have the real thing and not the visual almost identical 235. I have invested literally thousands of hours in research, comparisons, examining, taking measurements, &c. Jun 30, 2022 · The service replacement head for all '53-57 235 (both cars and trucks) was 3730415, casting number 3836848. The tow truck driver commented that he had never picked up a truck with paper tags still on it before. 6th, between 1957 and 1962. I'd say do what you can to get the casting numbers off it (mirrors and flashlight will help), might try the stovebolt site. Who's Online Now 7 members (Phak1, 32vsnake, Bill Hanlon, 78buckshot, Peggy M, Rusty Rod, 53 3800 chevy), 281 guests, and 0 robots. If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. Oct 14, 2024 · Chevy 235 engine identification numbers help determine the engine's year, origin, and application. org/becks/BCN2. The number of Chevy Suburban units being recalled is 2,525, while 3,858 Chevy Tahoe SUVs are also included. 5 cc's" Jul 15, 2014 · Head Casting Numbers: Chevrolet Small Block Engines Estimated Reading Time: 6 Minutes 286 July 15, 2014 General Topics 0 182K Rating: 4. in. Knowing how to interpret these codes is invaluable for upgrades Apr 9, 2023 · Told it was a 250, pulled from a 64 chevy pickup, engine was not original to the truck. Sep 19, 2024 · Engine Serial Number: S0901 (rear of dipstick) Cylinder Head Castings: 3836850 CON12 G 21 0 The combination of casting numbers (3733950 & 383650) indicates a 261 from 1954 - 1957. html 216 cu. Reading about several issues with this motor, oil leaks, long starts / no starts, DEF issues, etc. All 12 valve guides replaced with premium quality cast iron inserts. Chevy Forums FREE technical assistance for your restoration and repair. The head appears to have been changed in 1956 and from what I’ve been Chevy casting numbers for blocks and heads for small block V8 engines by Mortec. com - Hot Rods - Musclecars - Project Cars - Farm Trucks May 3, 2018 · How do I identify my engine cast number? There are many existing pages to identify your engine. Oct 28, 2015 · The 261 came out in '54 I think, the full flow in '58 or '59, so yours can't be older than '54 (as I recall). Apparently, from 1957 on forward, chevy 235ci engines stopped using serial numbers. The photod below were kindly provided by Mike Reese. org Numbers Oct 26, 2025 · Chevy 261 head casting 3836850 Please allow one week before head ship out. The side covers are 4", the motor mounts are not staggered, and the fuel pump location is wrong as well. Are they any good after porting and polishing? Heads will be used on a sbc to with hopes of the 325-350 Crank hp range. These numbers help determine engine specifications and compatibility with other parts, such as cylinder heads and crankshafts. Apr 1, 2004 · 12 Port News - Features 12 Port History Casting Numbers Online Store Tech Tips Become a Member Aug 26, 2025 · The head casting number is 3835913 or 3836848. D. The most common heads sought by engine builders are ones identified variously as the "Camel Back," "Double Hump" or "Humper" heads used Chevy Forums FREE technical assistance for your restoration and repair. Sep 14, 2011 · An unmilled head will be exactly 4" thick and your numbers appear to confirm this quote from Inliner's: "A few years ago, Tom Langdon, before he retired from GM, was kind enough to provide me some combustion chamber cc's based on casting numbers: 3836848 79. org/becks/ Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. Casting numbers, not stamped numbers, on the 261 head are very visible beside the rocker arm cover. I have a head # 3836850 which I believe is a 1958 261. Jan 14, 2011 · In a discussion on Stovebolt Forum (on 10/17/10) Denny Graham makes the statement, "We've all heard how the 848 head is the head that you want to use . All of the charts I looked at say that this is a 292. This head will fit all 1954 through 1963 235 engines. Chevelle V8 Cylinder Head Casting Numbers - 1964 through 1972 These head castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, Camaro and Corvette. i. It definitely is not. No more guessing at swap meets or salvage yards. Jul 6, 2015 · Malibu - Chevrolet Malibu forum for latest news, discussions, how-to guides, and technical help. Jan 8, 2015 · He double-checked the casting numbers, and realized that he could have a 1957 261 – complete with Siamesed cylinder bores – instead. You may find road grime and buildup that fills in the numbers. 3836848 is the casting number for a 235 head. It is an accumulation of data that has been updated over the years, so you should have no problem finding your Stovebolt in the list. Mar 22, 2016 · Chevy Six Cylinder Casting Numbers Engine & Drivetrain tclederman Re: Chevy 261? - Mon Jul 27 2020 08:30 PM 3836850 was the 261 Head. Find many great new & used options and get the best deals for 235 261 Chevy Rebuilt Cylinder Head Casting # 3836848 at the best online prices at eBay! Free shipping for many products! Mar 9, 2021 · I have a Chevy Inline 6 with casting # 3788378. Has anyone ever seen this and know why. Some casting numbers are NOT listed as they may have been used in other models of the Chevrolet lineup but were NOT used in Chevrolet Small Block Heads Casting Numbers, Information and Specification. the head has casting numbers of B53848850which comes back as a 56 235 headi cant find any casting numbers on the block ?all i can find is CON3F100serail number 506T46PLEASE CAN SOMEONE HELP ME WITH THIS ???THANKS Explore the comprehensive index of late Chevrolet Inline 6 Cylinder heads, featuring detailed information and specifications for enthusiasts and restorers. Feb 27, 2010 · 235 or 261? Stovebolt Engine Numbers ID Help Discussion in ' The Hokey Ass Message Board ' started by terd ferguson, Feb 27, 2010. 1 cc's 3835913 86. Aug 14, 2008 · Head 3836850- is the casting number for a 261 head. You confirm what I had thought. Head has been cleaned and magnafluxed. Finally, we have found a listing of the GM casting numbers 6 cylinders from 1929-1989. A different set of numbers relate to the 261 block. The number behind the distributor is the engine serial number. The work done to the head is as follows: 1. Nov 11, 2025 · I picked up a 261 from a 1957 6400. 19 intake, 1. ) head that was on the 1954-55 early 235s. the head has casting numbers of B53848850which comes back as a 56 235 headi cant find any casting numbers on the block ?all i can find is CON3F100serail number 506T46PLEASE CAN SOMEONE HELP ME WITH THIS ???THANKS I have a 1953 3600, but it does not have the original 216ci engine. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads When you have found what you suspect might be a 261, check a few specifies to verify you have the real thing and not the visual almost identical 235. inliners. Thinking about purchasing a 23 or 24 GMC Sierra with the 3. How do these compare to other factory heads. 3833340 Engine Block Inline-6 1955-1957 261 CID, Chevrolet 383340 Engine Block Inline-6 1955-1957 261 CID, Chevrolet 3835253 Engine Block Inline-6 1942-1953 216 CID, Chevrolet 3835309 Engine Block Inline-6 1942-1949 235 CID, Chevrolet 3835335 Engine Block Inline-6 1942-1949 235 CID, Chevrolet 3835353 Engine Block Inline-6 1948-1952 216 CID Jan 25, 2019 · I'm a bit confused looking around, this number doesn't seem to make sense, but this is what I have. 9=year castDec 17,1959. . Jun 8, 2021 · Learn how to identify Chevy cylinder heads on your early cast iron, late model aluminum, or aftermarket and Vortec Chevy Small Block (SBC) with our Chevy cylinder head identification guide. Photos and diagrams of Chevy casting number locations for cylinder heads for big and small block V8 engines. qji igwzd czpt wyf wif nktqelc kxfr zmkvi glwz ayugoo rdly ujdv cxq vluilkm pdk