Chevrolet casting numbers small block of Technology
Chevrolet Small Block Head Casting Numbers. Aluminum, LT5, ZR1, DOHC, 32-Valve, drivers Side. This casting # has been used in many different versions of this aluminum 18′ and 15′ Bowtie race head. Different chamber volumes, port volumes, port locations, valve sizes, etc. were used. Check this casting carefully to determine which features it ...I have a chevy 350 engine with Casting No. 3970010. I was told to get the numbers from the flat panel on the "passenger" side and I did. They are TYF705125 and V1015TMM.Chevrolet's small-block V-8 engine timing specifications depend on the cubic-inch displacement and whether a manual or automatic transmission matches the engine. Small-blocks have ...Available example, the Chevy engine casting number 14316379 means; CID: 350, Past: 68-88. Remove Casting Number Locate. The Chevy small/big-block casting number a place at and back ledge of the block behind the driver-side cylinder head, next to cylinder #7.There are three other pocket guides offered including the "Chevy Small Block 1955-1999 Factory Part & Casting Number Guide", "Chevy Big Block Suffix Codes 1965-1999" and the "Chevy Big Block 1965-1999 Factory Part Number & Casting Number Guide." These four books do include passenger, truck, marine and industrial engine applications.Crate motor casting number 10243880= ? Hi, I just purchased a C-2 vette with a crate motor . The info on left rear of block : GM 5.7L New Mexico . Rt rear of block casting number 10243880. Seller said it was purchased from Jegs as a complete engine minus carb,exhaust manifold etc.and is a 350 with 355 hp. ZZ4.The 2.02 intake and 1.60 exhuast valves were first used in the 1964 model year and the head casting was apparently revised to accomodate the bigger valves. Per Chevrolet by the Numbers, QUOTE After "G" of 1963, a "64" is cast above the casting numbers to differentiate between the early '461x casting and the '461 casting. UNQUOTE G = July.Casting number 12558062 is a Vortec head that is available from Chevrolet Performance. It is completely assembled with 1.94/1.50-inch valves, and 64 cc combustion chambers.Loaded in 1 ms.. There are 2,506 casting numbers in the database.2,506 casting numbers in the database.Any replacement engines/blocks before 68 would have used current production engines/blocks. After 69, those small journal blocks were no longer used in production. GM recast the blocks with new casting numbers to service the small journal requirements as follows. 3959532 283 PASS/TRUCK CE 3959534 283 Chevy II/Nova CE 3959512 327 PASS/TRUCK 327 CESmall Block Chevy Casting Numbers. The casting date for a Small block Chevy is crucial for identification, typically located on the driver side rear of the block, near the flange forward of the bellhousing. For Big block engines, this information is found on the right side above the oil pan rails.Chevy Double Hump Heads Specs. General Motors identifies its small-block Chevy cylinder heads with both casting numbers and casting marks. "Double-hump" heads were found on many of its high-performance engines in the 1960s and early 1970s. They were manufactured with larger intake and exhaust port volumes and valves for the …Chevrolet Small-Block V8 engine Manufacturer: General Motors Production: 1955–2002 Successors: GM LT engine, GM LS engine: Type: small-block V8 265 Production: 1954–1957 Displacement: ... However, some 307 blocks, such as casting number 3970020 with suffix VxxxxTHA ...379116265-66 283 & 327 RH Chevy II with AC 379073064-65 283 & 327 RH 220, 250 & 300 HP 1.9" Outlet Chevy II 379072964-67 283 & 327 LH 195, 220, 250, 270, 275, 300 & 350 HP 2.0" Outlet Chevy II 378072864-67 327LH Chevy II 376758459-61 348 & 409 RH Passenger 376758359-61 348 & 409 LH Passenger 375055658-65 283 & 327 RHThe heads are casting # 462624. I came up with a few different applications for these heads. Anything from a 71-79 Camaro/ Corvette head to 75-85 truck head. They show 161 cc intake ports and 74-76 cc combustion chmabers. I am not sure of the valve size but I plan on pulling the heads to check.348-409 Chevrolet Engine Block Casting Numbers. Move cursor over the various items below to show their location. Click the link for more information about that item. Numbers-Codes-Dipstick Block Casting Number location 1958-62 Block Date Code location 1963-65 Block Date Code locationThe primary appeal was that the intake ports were slightly larger than a std. 487 casting....handy for class racing like NHRA Stock Eliminator where you are restricted to using only certain casting numbers. There is also a 461X casting as well, same deal but better & with smaller chambers than the 461.Dec 3, 2023 · The code stamped onto the small block Chevy (SBC) engine is more than just a series of random numbers and letters. It is the Rosetta Stone of the automotive world, a key that unlocks the rich history and specifications of the heart of America’s most beloved muscle cars.Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. ... Pontiac/Chevy Aluminum Small Rectangle port. 10051128. 454. 90-94. 2.19/1.88. 72cc Bowtie Aluminum Rectangular port 400cc intake. 10052902. 427. Oval Port Open chamber. 10101136. 454. 91-94.The significance of head casting numbers on Chevrolet 350 engines can't be overstated for enthusiasts and mechanics alike. 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.This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. Choose Group to View Engine Block Codes Select Block Casting Group ALL Block Codes 262, 265, 267 302, 305 or 307 327 350 400Another way to identify a Small Block Chevy 327 is to look at the cylinder head numbers. These are usually located on the top of the cylinder head, between the rocker arms. The cylinder head numbers for a 327 should be either 3782461, 3782461X, 3782461X, or 3890462. Again, if your engine has one of these numbers, it's likely a 327.Small Block IntakeThere are 2,506 casting numbers in the database. ... [ http://www.castingnumbers.info/site/detail/260 ]The 1.5" exhaust valves can have 3/8" stems. Mortec says '72-'73, but I'm fairly certain I've seen these heads used in production on later engines. I pulled a set off of (what I believed to be) an original '77 Blazer. Jims show these heads being used somewhere along about '71-'77 on the 350. Another request- look for a casting date on the heads ...12567392. Manufacturer: Chevrolet Category: Engine Blocks Type: LS Small Block V8 Date: 1999-2007 Notes: Vortec 5300, VIN "T", 5.3L / 325 CID, Cam bores changed some time in 2003The casting day in Chevy 327 engine identification refers to the specific day of the month on which the Chevy big block or Chevy small block was cast. The casting day is represented by a code letter or number as part of the casting date, which is typically found on the driver side rear of the block on the flange forward of the bell housing.Block casting number: 3914678. Casting date: K67. Engine stamp located on the forward end of. left-hand cylinder bank: VII29YC. Cast code at timing chain: HB G31. 678. Cast code at the rear of block: H31 636. 678. Cylinder head number: 380545.Small Block Chevy Head ID; Engine RPO Numbers: These are also located on the drivers side of the engine, at the back of the head on the transmission mounting flange. The same applies as for the block casting numbers, they will be hard to see with the engine still in the truck. Small Block Chevy Engine RPO #'s; Engine Summary 1970 - Current:Casting number 3970010 is a very desireable block it is a 4 inch bore used for late 327s, Z28 302s, and heavy duty 350s used as performance, truck, and industrial engines. They all vary as to being 2 or 4 bolt mains. The 2 bolt blocks can be converted to 4 bolts with all the strength of factory 4 bolt versions.Whether you are an engine builder, drag racer, circle track racer, boat racer, road racer or a hobbyist doing a classic Chevrolet restoration, Mortec has information you can use, …Chevrolet Small V-8 Cylinder Block Casting Numbers 1955-1985 These listings are always a work-in-progress. If you have any documented info that can be added to these pages,Small Block V8. Date. 1978-1979. Notes. 305, 2 bolt. Added to DB. December 20, 2010 (4907 days ago) Loaded in 1 ms. There are 2,506 casting numbers in the database.Small Block Chevy LS Cylinder Heads by Casting Number 10215339 – LS Small Block V8 1997 346, LS1, aluminum, 68cc chambers . 12480005 – LS Small Block V8 2000 LS1, GTZ, aluminum, 38cc chambers, 2.125/1.625 valves, angle plugs . 12556743 – LS Small Block V8 1999 325, 5.3L, aluminum, truck, van . 12558806Chevrolet Small-Block V8 engine Manufacturer: General Motors Production: 1955-2002 Successors: GM LT engine, GM LS engine: Type: small-block V8 265 Production: 1954-1957 Displacement: ... However, some 307 blocks, such as casting number 3970020 with suffix VxxxxTHA (x's in place for date), had 010 and 020 stamped under the timing chain ...Showing 742 results on 38 pages. 361979. Manufacturer: Chevrolet. Category: Engine Blocks. Type: Small Block V8. Date: 1978-1979. Notes: 305, 2 bolt gm chevy sbc bbc …2623 posts · Joined 2002. #2 · Dec 27, 2005. The 487 heads will flow as well as any factory double hump head. The only real problem with them is that they have poor combustion and burn characteristics compared to the earlier closed chamber style heads. You can get 220 CFM out of them without too much work and they will make a good cheap set ...400 SBC Casting Numbers. Guys I have what I think is a mystery, I have a SBC 406 and I checked the casting number and it is 395509 there is also a 509 on one of the side of the block. I have looked everywhere on the internet and I can find 3951509 or 3951511 but not a 395509. I have crawled into the engine compartment and have absolutely ...Chevy Small Block - Engine Block Casting Numbers Notes (for below): "High Power" is the maximum rate HP this block was used for, "Low Power" is the lowest rated horsepower RPO engine the block was used in. "Main Caps" is the number of bolts holding the cap. A "two-bolt" main, or a four-bolt main. Four bolt main blocks are desirable in high performance applications because the extra strength of ...Ok you have a 3970010 block, now look at the date code on the back of the block. If the date code is anything higher than 71 it is a 350. 68-70 it could be a 302, 327, or 350. The 302 block had additional stamping that read DZ, most likely it is not a DZ block. Next look at the heads and crank, check the casting numbers and dates on the heads.This is for Your Choice of 1 Very Rare 1962 Dated, 1962 and 1963 Chevrolet Car, Truck and Corvette 327 cubic inch Chevy V-8 Bare Block with Main Caps, (GM Casting Number 3782870, GM Group Number 0.030), while Supply Lasts. This listing contains only one year of our collection of over 4000 original Chevrolet V8 engine blocks of all sizes. These will …14093638, 350, block, castin, casting, chevy, code, engine, gm, info, number, numbers, small, v8, year. Tech / General Engine - Please help me identify casting #14093638 - I have this long block in the garage. 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 ...348 and 409 block casting codes, head casting numbers, exhaust manifold casting numbers, and intake manifold casting numbers. 348/409 All of our casting codes are now in searchable databases. You can search for specific specs or numbers or even view all. More information has been added as well as reference pics when they are available. …Small Block Chevy Casting Numbers. Small block casting date is located on driver side rear of block on flange forward of bellhousing. Big block on the right side of engine above the oil pan rails. Casting Date Example: E038 - (E = Month, 03 = Day, 8 = Last digit of model year (1978)). Month: A = Jan, B = Feb, C = Mar, D = Apr, E = May, F ...there is a date code which is on the bell housing flange opposite the casting number,, or on the passenger side. say it's D/24/6,,,, that would read as april/24/1976 for an 010 block. the first letter/character (D in this example) is the month,, then day, then year. "A" is month one or jan. "B" is month 2 or feb.The block casting number is stamped on the left front of the engine block, usually above the vibration damper. It consists of 3-8 numbers or letters that indicate the manufacturer, displacement, and date. Common GM block prefixes include: V codes (e.g. VIN code) for small block V8s. Y codes for small straight-6 and inline engines.re: 3970010. Can you post the id letters and numbers that you see on the engine block on the the small extension of the block surface just below and ahead of the head on the passenger side. I have some books that might reveal some info re: the year of the engine. BTW my own 383 stroker has a number that I cannot seem to find anywhere yet.I have a casting number 184 Bowtie small Chevy block and was curious if someone on here could verify the overbore capability. The Chevy Power manual says the 184 is considered a "big bore", heavy duty siamesed cylinder case. It goes on to say it can be finished as small as 4.00" or as large as 4.160".Vortec heads will bolt on any small block Chevy. A Brief History of Small Block Chevrolet Cylinder Heads. 1st Design 1955 to 1986. Perimeter Bolt valve covers. Top valve cover bolts are closer together than the bottom bolts on 1955 to 1958 heads. Six intake manifold bolts per head 90 degrees to the gasket surface.Cast iron skillets is a fantastic tool for most stove-top cooking. However, like all the best tools, they can require a little extra care to get the most out of them. This video sh... someone else you’d rather not hear from, there are probably a few phoneThe L31 heads from the late-model 350 Vortec engine, introduced early in 1995, is the other type of cylinder head you need to look for on the used market. This is probably the best cylinder head casting that Chevrolet has ever produced for a production small block Chevy. GM's 350 small-block engine is an iconic powerplant useHot rod enthusiasts can attest to the popularity of theChevy Double Hump Heads Specs. General Motors ide
