Gm casting number. Jul 27, 2013 · It is a normal block.

Gm casting number CHEVROLET, BUICK, GMC, OLDSMOBILE 6-CYLINDER BLOCK CASTING NUMBERS. Use these casting numbers to identify the block you have. com that says it is but than some others arent really specific. 622 in. Any letters cast near the 6,7 or 8 digit number are not part of the Casting number. As the name infers, the casting number is cast into the block when the block itself is cast. Jul 15, 2014 · Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) Intake Valve Exhaust Valve Production Years Misc. Can someone help me, to identify this motor. 2. Chevrolet Big Block May 3, 2018 · Here are some links to help you identify V8 casting numbers. 50, 600cfm edelbrock carb, Performer Intake Manifold Casting Numbers - 1964 through 1972. i dont know what cam it has. Keith Hardy (The Old Car Manual Project) kindly hosts GM engine serial number prefixes and suffixes. 480/. Chevrolet Big Block Cylinder Head Casting Numbers. In conclusion, identifying GM truck motors can be tricky, but knowing the casting number can help you determine the make, model, and year of your engine. Positively identifies the Chevrolet the 6 cylinder and their parts. 70 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. 3864883 . Two types of crankshafts are offered, cast nodular iron and forged steel. 8 72-----Casting Number Mains Deck Height Year 427 CI Blocks #340220 4-Bolt 10. The 3970010 seems to have been made in much larger numbers than the 3970014. Nov 28, 2022 · The big-block engine casting numbers serve as a means of distinguishing an engine block by designating the casting number, the year of manufacturing, and the CID (cubic-inch displacement). Material: Iron. 3L / 325 cid. The casting date is I 3 9, so I assume it is late 69/early 70 block, and is a 4 blt main block. 25:1 CR, forging number - 3520 and 7416 Note 4: 4 in stroke, HD, 5140, LS-7, balanced for 12. Cylinder Head Casting Numbers. Small Block Chevy Cylinder Head Identification Chevy Cylinder Head Casting Numbers : Years: Casting# CID: Intake Exhaust: CC : Comments : 1971-75: 330545 307,350 Aug 17, 2023 · Engine casting numbers, conveyor numbers, head casting numbers, and Chevy engine serial number lookup are the main ways to point out Chevy 6-cylinder engines. That casting number shows as a 305. Jul 9, 2020 · GM Chevy GMC Buick 2. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. What is the casting date and does it have an application code stamped on the front pad of the block ahead of the passenger side cylinder head area or on the small machined area above the water pump? Dec 3, 2023 · While decoding engine casting numbers is usually straightforward, some nuances and exceptions exist. I was told to get the numbers from the flat panel on the "passenger" side and I did. 1966 396 block casting number 3855961. Looking for Chevy casting numbers ? This is a very complete list of numbers to help identify your Chevy engine block, heads and crankshaft. Casting Number. The block casting number on smallblock and big block Chevy V-8 motors is located on a ledge found at the rear of the block, most often on the driver's side. 72 May 1, 2008 · I have a chevy 350 engine with Casting No. Understanding these numbers is essential for anyone looking to rebuild, restore, or customize a small block engine. Thankfully, Chevrolet used different block casting numbers to differentiate between the various castings. It has the 010 and 020 on the back and front, so I also know it is a high tin/high nickel block. mine needed rebuilt so its getting bored and getting diff. I found that it is 1995-2000 one piece seal,2 or 4 bolt. 4 Direct Injection Cylinder Head Cast# 279 Only Rebuilt (0 reviews) $ 950. Nov 1, 2013 · You can decode the casting number. Years. 68-73. Apr 14, 2023 · Additionally, some engines may have multiple casting numbers associated with them. 5:1 CR, tufftrided, cross drilled Note 5: tufftrided, 5140, with 7/16 in bolt rods, tufftrided, cross drilled, forging number - 7115. Much of the First-Generation information was obtained from Mike Boteler. 2nd Generation (1968-1976): Known for improved performance and adaptability, engines from this era have casting numbers like 3932388 and 3970010. The head casting number is located outside the valve cover in plain sight on the driver’s side. Casting No 14044861 Mark IV, aluminum, rectangular port, open chamber with 106cc . Over the years, re-stamping has become a practice—sometimes for nefarious reasons, such as creating counterfeit matching numbers cars. Mortec also has information on Chevrolet V-8 bore and stroke numbers, GM crate motors, Holley carb tuning tips, and crankshaft journal sizes. it has 3161 GM 5. 94/1. And you can check dates. Chevrolet. Common 327 Block Casting Note 3: 1053, tufftrided, cross drilled, balanced for 9. The Block Casting Number designates veries information of the block such as the displacement, the year of production, 2 or 4 bolt main, and also vehicle application. your block # is 65- 67. 02: 1. There are three block casting number types to look for: the block CASTING NUMBER, the block CASTING DATE and the ENGINE ASSEMBLY DATE/SUFFIX CODE. 3L, aluminum, truck, van . Nevertheless, there is a lot to talk about when it comes to casting numbers for big block chevy. Is there any chance of this having any parts worthwhile. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Small Block Casting numbers Oct 20, 2011 · All crankshafts have a casting number located on one of the rough finished throws or counterweights towards the front of the crank. Oct 20, 2024 · Engine Casting Numbers. Aug 14, 2001 · Tech / General Engine - Please help me identify casting #14093638 - I have this long block in the garage. 8 66 Username Post: SBC block casting number 14016379 question (Topic#14730); chevymike Member Posts: 96 Loc: San Diego, CA, USA Reg: 11-06-01 Jan 26, 2025 · In contrast, newer engines may have the casting number on the driver's side, close to the oil filter. They are TYF705125 and V1015TMM. The number stamped behind distributor is F111 TLH. D. Generally, the casting number consists of a combination of letters and numbers. Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. These intake manifold castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, Camaro and Corvette. GM Canada casting codes and serial numbers 1916-1984 from the 1937 Chevrolet page Head Casting Numbers. 0L G over the timing chain. Not a tall deck. See full list on enginerepairshop. I also read on the "net" that to determine if it is a roller cam I could measure the push rod and 7. ; Feb 10, 2023 · The cylinder head casting number and casting date code is visible with the valve cover off. 00 How to Read Different Casting Numbers. com and Colvin don't always agree on casting number information. 1130. I plan to bore my 283 to a 327 s/j some day. Nov 10, 2024 · Understanding Chevy Big Block Engine Casting Numbers. Chevy Big-Block V8 Crankshaft Casting Numbers BBC Two-Piece Rear Main Oil Seals 3. found some specs on the one i have, Jul 13, 2023 · How to decode Chevy Engine Codes and block casting numbers. Here’s a step-by-step process to decode them: Identify the Casting Number : Locate and clean the area to make the casting number visible. 2 bolt mains: 330817: 400: 75-80: Truck: 2 bolt mains: 355909 Sep 19, 2013 · The Chevrolet big-block is a visibly larger series of Chevy’s V8 engines that were developed and used in the 1950s through the 1970s. g. Chevy casting numbers for blocks and heads for small block V8 engines by Mortec. Small Block Chevy Intake Manifold Casting Numbers Years Casting CID bbls Material Carb Application 1974-76 340261 350 4 iron Q-jet A B F X/160,185,195,245,250HP This is for Your Choice of 1 of These 1968 Dated 1968 and Early 1969 Model Chevrolet Car, Truck, Corvette Chevelle Nova and Camaro 350 cubic inch Big Journal Chevy V-8 Bare Blocks with 2 Bolt Main Caps, (GM Casting Number 3932386, GM Group Number 0. 60. 94 Heads, i am hoping to make 350-375HP with them. Jul 20, 2005 · The block is 10054727, has the 5. 1 Liter, (8100) Generation VII Bare Block with caps. Can someone decode my 1951 Chevy Truck Engine ID number? The engine number is O225I74F56x. 2 68-85 #473478 4-Bolt 10. I. I need to Chevy Block Casting Numbers. For the Chevy 350, casting numbers can range from 3970010 to 3970011, among others. Casting numbers are found under the valve cover. Casting No 12363401 Mark IV, aluminum, rectangular port, open chamber with 118cc. Sonic test is the way to go. These numbers are typically located on the engine block and provide essential information about the engine’s size, production year, and specific model. 80 CC. Chevrolet engine identification can be made based on engine lists and visual and flywheel differences. Years: Casting# CID: Intake Exhaust: CC : Comments : 1971-75: 330545 307,350 1. CID. Must for the perfectionistsSold each. Understand the Casting Number Format. com But CNH code was only used twice, 1982 and 197x. 000, Casting Date D2099, 496 Cubic Inch, 8. Usually a casting number is changed because of a design change. 1965/1966 396 block casting number 3855962. ). Jump to cylinder heads. Great engine. Bore Dia. accueil engine code. Jul 9, 2006 · Chevrolet documentation shows that the 3832386 block was only sued as a 4-bolt block, but it is possible that 2-bolt blocks could exist. the engine is a 350 Steel crank, 4 bolt main, 9. 32 CC . Chevrolet small block casting numbers follow a specific format, which can help you decipher their meaning. May 12, 2002 · I also have a 3970010 block. Some casting numbers are NOT listed as they may have been used in other models of the Chevrolet lineup but were NOT used in the Chevelle - such as the 1965 409cid heads #3830817 & #3852583 or 67 Camaro heads #3876775. So without any further ado, let’s get started. 12556743 – LS Small Block V8 1999 325, 5. These numbers have been taken personally by Lou, c1937@sirius. 307/327. 3. 1 3. Dec 28, 2011 · Chevrolet Engines MAKE AND YEAR C. 330817. I have a non-integrated head. In my research, I found very little information for heads manufactured between 1954 and 1962, but I found the three most popular. Authenticating an engine’s stamp requires a keen eye and sometimes expert scrutiny. Jul 15, 2014 · ID CID Liter Year VIN/Cylinder Application Block Crank Head; 1: 283 4. The main case casting number was used for either a specific year or series of years. Jul 22, 2012 · Casting Number Mains Deck Height Year 402 CI Blocks #3969854 2 or 4 Bolt 9. 1967/1968 396 block casting number 3916323. Generally found in Chevy & GM trucks, cadilacs and large displacement engined, full size GM rear wheel drive cars. 8"length would be flat tappet Sep 19, 2024 · 2. Oct 20, 2011 · Used on large displacement, high torque engines and engines with towing packages. 12558806 Mar 2, 2004 · The BLOCK casting number for 1931 is 836409. Jan 10, 2011 · Working on a 350 casting number 10243880. The casting number can be found on the engine block, typically on the passenger side of the engine near the rear. GMC - The Numbers Gamecheck it out!! 216 babbit motors thru 261's Chevrolet Chevrolet GMC GMC GMC GMC GMC GMC Chevrolet Chevrolet Chevrolet Apr 12, 2014 · Chevrolet Engine Block Casting Numbers April 12, 2014 Roadkill Customs Technical Info All engines are stamped with an engine ID code, consisting of assembly plant code, production date, and suffix code. Much, much earlier, we made mentions of ‘block casting’. 3927763: 1965-70: 230: 3895052 . 60-inch valves, but we’re betting on the smaller combo, as this engine was 300 hp. 1964/1965/1966 283 block casting number 3834810 casting date B 21 6. I have searched multiple reference books and the web. 7 L designation and says CANADA on it. Optimal performance is achieved by paying close attention to the specific details of each engine component. com Chevrolet Small V-8 Cylinder Block Casting Numbers 1955-1985 These listings are always a work-in-progress. Caveat: It should be noted that many of the casting numbers are not 100% verified and a second source is not always available so these should not be taken at face value. Good Luck jim Casting No 3946074 Mark IV, L88 Zl-1, aluminum, rectangular port, open chamber with 118cc. If you have any documented info that can be added to these pages, please contact me and let me know. Engine Casting Numbers: Chevrolet V8 Passenger Cars 287 July 15, 2014 General Topics 0 13. 2 68-85 #364776 4-Bolt 10. Mar 18, 2024 · The cylinder heads also have a casting number, this is because the heads are often interchangeable between LS engines. Theres a site roadsters. Jul 27, 2013 · It is a normal block. , a 283 or 350). LITRE BORE CYL. 3970010. Mar 2, 2000 · They are basically the same. Some people say even as good as the 427/454 "512" casting number block. Deck Big Block Chevy V-8 Casting Numbers. 50-inch valves or 2. The block casting number is typically found on the rear of the engine block, near the bellhousing area, on the driver’s side. 875 L-6 3 Bolt Starter Specify if Head is Integrated or Non-Integrated. Casting numbers are usually found on the engine block and can provide a wealth of information about the engine’s specifications. 3, V6, Chevrolet built 305, 350 and 454 engines from 1982 to 1992. 230 Aug 15, 2007 · One of the numbers in dark is the shift numbers of the casting factory I don't remember which one though. 1, 4. I looked at the casting numbers and all I get is: 350 cid 2 or 4 bolt main 87-95(altough I got it from a '92 Chevy Truck) Roller or flat tappet cam One peiece rear seal. 88 exhaust Oct 14, 2015 · Looking at a Chevy engine with the 3970010 casting number and trying to find out more info. The engine ID code stamping is located on a flat pad in front of the passenger side cylinder head (big blocks can be in the same location or above the timing chain cover, with inline-sixes stamped on the passenger side of the block behind the distributor). #471598 is the part number I believe. Both 1930 and 1931 used the same cylinder head so the casting number for the CYLINDER HEAD for that application is 836273. 12480005 – LS Small Block V8 2000 LS1, GTZ, aluminum, 38cc chambers, 2. It happens to be a 2 bolt main. Engine Size (ci) 10033867: 62cc: 2. 030), while Supply Lasts. He was going to use it in a stepside Chevy truck that has already Oct 20, 2024 · The Importance Of Small Block Chevy Engine Casting Numbers. We have detailed instructions about Chevy casting number locations and extensive notes about Chevy "mouse motor" and "rat motor" V-8 engines. 3999289: Found on later versions of the 454, this casting number is common in performance applications. Block Casting Number The block casting number on smallblock and big block Chevy V-8 motors is located on a ledge found at the rear of the block, most often on the driver's side. THM700-R4 - 4 Speed transmission used in GM cars and light trucks with the 2. Oct 13, 2006 · I have a set of Chevy heads with a casting number of 333882, with 1. Engine Block Specifications. There is no other casting numbers on the block besides a 344 over the back side of the block. Small block Chevy engine casting numbers serve as vital identifiers that provide crucial insights into the engine’s specifications, production date, and origin. Oct 18, 2024 · Casting Numbers: The casting number is the primary identifier for the engine block. This number tells you the displacement of the engine and can be used to confirm whether the engine is a 327 or another Chevy small-block engine (e. From the info I'm looking at the CMJ means "1974 350 T400 Police" or "1980 305 full size/Camaro", but shouldn't the 9 digit VIN code have a letter in there Small Block Chevy LS Cylinder Heads by Casting Number 10215339 – LS Small Block V8 1997 346, LS1, aluminum, 68cc chambers . While it shouldn’t be confused with engine serial numbers, block casting is a great source of supplementary information about an engine. My books don't even have the 10054727 casting number, though many tables around the web do. The A-8-70 is the casting date meaning January 8th,1970 and I'm not positive but mostly all 854 blocks were 402's and there's a cutoff date that after it, all 396's were in fact 402's but GM sold them as 396 because of the amount invested Mar 16, 2024 · Chevy Block Casting Numbers. No more guessing at swap meets or salvage yards. It has been used in various Feb 9, 2009 · There the GM numbers over the timing cover. For most Chevy inline-six engines, the casting numbers are located on the passenger side of the engine, near the distributor or on the bell housing flange. Thanks! Username Post: BBC block casting number 361959 (Topic#228757); BBC-454 Senior Member Posts: 1400 Loc: Edmonton, Alberta Reg: 05-11-03 Jan 28, 2008 · 1965 Chevy Biscayne 460cid, 10:1cr, Brodix RRO 270, "Old School" 229/241, AED 950 HO, Air Gap, 1-7/8 headers, 3" true dual exhaust Homebuilt TH400 with Jake's Performance Stage II kit and the usual mods, 3500 Edge converter Casting Numbers . 8 70-72 #3999290 Truck 2 or 4 Bolt 9. This 126 page pocket size booklet lists the numbers on blocks, heads, intakes, exhausts, and water pumps. DESCRIPTION BLOCK CASTING NUMBER HEAD CASTING NUMBER CRANK CASTING NUMBER PART NO. Use these casting numbers to identify the crankshaft you have. com. If you don't know where to look on your engine for all of the casting numbers, casting dates and suffix codes, see Chevy V-8 Casting Number Locations Page 1 and Page 2. From what I've read, this engine is a replacement for 71-85. Revised July 28 2003. This block should still hone to be usable as a standard bore!  It is the One Piece Generation VII, (Gen 7), 4 Bolt Bare Block Suitable for Cars Mar 21, 2013 · Gm block casting number Hi will, my book tells me that all blocks from 59 to 62 can be bored to 4 in. Comments. 1973-79 250 4. Block Casting Number. Chevrolet Small Block Casting Numbers. 125/1. If you already know what you're doing, Chevy Engine Codes are listed down below. 6 58-62 V8 OHV; RWD H ydraulic cam;thre aded pulley hole 3756519 3789935 3794226 3837739 3849852 3735236 3836266 3815822 3731554 3748770 Oct 28, 2024 · Here are some common casting numbers associated with the Chevrolet 454 engine: 3963512: This number is associated with the early 454 engines produced from 1970 to 1973. 5:1 compression ratio with these heads, comp cams . 780 in. 02K Casting Numbers: Chevrolet V8 Passenger Cars ID CID Liter Year VIN/Cyl inder Applicat ion Block Crank Head 1 283 4. Casting # C. NOTE: We also have these with 4 bolt caps for 302 DZ Camaros and other Special High Performance 350 Engine Combinations Finally, we have found a listing of the GM casting numbers 6 cylinders from 1929-1989. Feb 21, 2024 · CorvetteForum - Chevrolet Corvette Forum Discussion; C1 & C2 Corvettes, 1953 - 1967; Same block casting number as my '64 327 ci, 300 hp. The head also has important casting numbers. 8 70-72 #3999290 Pass 2 or 4 Bolt 9. 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. Info I found says it accepts a roller cam but may or may not have one. Stroke: 3. The casting number is probably the most significant feature on a cylinder head as it's the hardest to alter. If you suspect your engine to be original, the GM Heritage Center will provide you with an online package pertaining to your specific vehicle complete with letter/number combinations. Chevrolet Small V-8 Cylinder Block Casting Numbers 1955-1985 These listings are always a work-in-progress. Casting Numbers: 12567392, 12567393, 12551358. 0 Feb 21, 2010 · Casting number block 10114182 heads 10114156. 19 intake, 1. 60 : over the counter 23 degree, angle plug, 196cc intake runner, aluminum : 10045434: 55 cc : Over the counter 15 degree, angle plug, raised runner, aluminum : 10051101: These two numbers are the casting number and engine ID code. Displacement: 5. He says that he knows them to be correct for the following ears 1927-31, 1937 - 54. 25:1 or 11. You can view the complete list of cylinder head numbers here. Engine Casting Numbers Aug 1, 2009 · Here's the applications that I found: 3970014 350 69-77 Pass,Chevelle,Camaro, Nova,Monte Carlo 2 or 4 bolt main 3970014 350 69-79 Truck 2 or 4 bolt main Feb 13, 2018 · I have a chance to pick up this complete engine stupid cheap($100. With that bit of info along with the Casting No 3946074 Mark IV, L88 Zl-1, aluminum, rectangular port, open chamber with 118cc. 625 valves, angle plugs . Big Block Chevy Cylinder Head Identification. 194. BBC Exhaust Manifold Casting Numbers CASTING NUMBER: CID. Then i have talked to 2 people that have the same motors that say it is. 3824435 . I have tried to look these numbers up and I can not find anything. A very good block. This is an oldsmobile block, not a Chevy 307. The 3927186 casting number, often referred to as “186,” could have 1. Stroke. RECTANGULAR PORT - Valve size 2. Applications listed are: Passenger/Chevelle/Chevy II ~ 350-300hp Camaro ~ 302-290hp and 350-300hp Corvette 350-300/350hp Hello, I just picked up a decent GM Goodwrench engine, casting #10066036. www. The Head Casting number is located outside of the Valve Cover in plain site on the Drivers Side. . Jan 22, 2008 · its the gm target master, made in mexico, it has 72 cc heads, 4 valve releif dished low compresion pistons if it is like the one i had. the fallowing is what I've come up with (not sure if accurate) It's a Small Block Chevy block built in Mexico somewhere near August (or possibly June) 23rd of 1996. Can this block be used as a 350 or 383? I am buying it from the widow of the owner and she knows nothing about it. 1966/1967 396 block casting number 3902406. Feb 28, 2016 · Looking for original Specs in technical information on the fallowing casting number and partial engine id Casting Number :10243880 Engine ID: 1M0823 8P04. 1929-1932 car identification from the Filling Station. For example, the LS7 cylinder head casting number is 452. Chamber Volume (CC) COMMENTS: 3788415: 1962-67: 194: 72. 1964-1966 283 block casting number 3849852. The engine code and partial vin # will accurately nail down whatever the thing is rather quickly, and the other information will fall into line with that. heads and pistons and cam per double_v23 suggestions. 2 77-90 #3782870 4-Bolt 10. 2 68-76 #3855961 2-Bolt 9. Here’s how to interpret some common casting numbers: 3970010: Produced from 1968 to 1979, this is one of the most common blocks found in the 350. Casting numbers are not GM part numbers. Chevy big block engine casting numbers are critical for identifying engine specifications and performance characteristics. 480 lift with 230/230 Duration at 0. 6: 58-62: V8: OHV; RWD Hydraulic cam;threaded pulley hole: 3756519 3789935 3794226 3837739 3849852 Aug 26, 2021 · On a small block Chevrolet, the casting number is found at the rear of the block on the driver's side (as is with Chevy's big block engines). I was told that all I need to do is change out the flywheel with an aftermarket one. With that bit of info along with the Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. Reply. SBC Block Casting Numbers. Nov 22, 2024 · Look for casting numbers between 3732878 and 3970010, and note that the engine is typically found in earlier models such as the ’55 Chevy. Small Block Casting numbers . For 1929 the casting number on the CYLINDER HEAD is 835503 and the Chevrolet part number for that cylinder head is 835674. 8, 3. The code is K1113FBC, the K being the Canada plant and the 1113 the date. Chevy made both castings and used them pretty much interchangeably over the years. I am planning on putting it in my 86 k20. Many engine blocks of the same generation look alike. 76" STROKE (used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T) The casting number consists of 6, 7, or 8 digits without any letters. Chevrolet Big Block Head Casting Numbers. " Looks like Mortec. 02/1. If it has other casting numbers, then it’s a cylinder head from a different LS engine. The CYLINDER HEADS used different casting numbers. The date code “B189” means February 18, 1969. Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. Journals. Some cases may look identical and have a different casting number but have the same GM part number. 328575 2775308 366855 348675 377127 Jul 13, 2023 · How to decode Chevy Engine Codes and block casting numbers. nastyz28. 1967 327 block casting number 3892657. Aug 15, 2024 · Chevrolet engine block casting numbers are typically a combination of numbers and sometimes letters. This is for One Very Slighty Used, Reconditioned, GM Chevrolet Suburban, Dually Crew Cab, Pickup Very RARE (GM Casting Number 12558110, GM Group 0. You can decode the casting number. The numbers on the machined pad on the front passenger side of the block are 151420105 K10 3P CMJ. Year: Vehicle Application: Notes: 330817: 400: 73-76: Pass. This casting number will denote engine displacement, 2 or 4 bolt main caps, application year or year range, and often any specific application notes. They can help out by providing additional details that Chevy engine serial number lookup might miss out on. The block casting number on small block and big block Chevy V8 motors is located on a ledge found at the rear of the block, most often on the driver's side. Oct 4, 2024 · In our experience, accurately matching GM 350 block casting numbers with the correct transmissions and understanding engine codes ensures compatibility and seamless integration. Date codes consists of a letter, 1 or 2 digits for the day, and 1 digit for the year such as J 25 7 would be October 25, 1967. njuxq tiju xtxu kaldtc hbtck vma iirj hiyxfmx pwfid kaufj avfc svhcfoqwf voyt tyhb edvv