Big Block Chevy Head Date Codes

Re: timing a big block chevy Your back fire has nothing to do with timing. The theme here is big displacement in a small-block made of aluminum, re-engineered with modern technology and race driven design. Most of the parts that we have in stock are already featured on our website. Big Block Crankshaft. Find Expert Advice on About. 825 lift New cost 5400 set. Big M GEN VII. George, This is weird you say small block but suffix code TPJ comes back 454 cu. Call or text if interested (650) 224-eight four 56. The big block Chevy engine is a family of large displacement motors manufactured by General motors beginning in the 1950's. Step two is to match the engine suffix code, and the date code, with the engine suffix codes listed in this book. The last 3 or 4 digits of a head's casting number are located on the lower-right side of the head. the body numbers is on the vechicle identification number plates located at the top left of the instrument panel. These heads have been completely rebuilt with stainless steel valves, new valve guides, new Comp Springs/Retainers/Locks. Freshened up in stock configuration Cleaned and magnafluxed Valve job Surfaced Some seats replaced bronze guides new seals and locks hydraulic roller springs. Car enthusiasts usually refer to this type of engine as simply "big block" which is meant to differentiate the engine from its smaller cousin, the Chevy small block. Drawings by David Kimble. Just got back from the machine shop to have them pressure tested. Big Block Chevy Sq Port 1969 427/435 hp Heads QR Code Link to This Post. (See Image) However, occasionally the cast number may be located on the Passenger Side. The casting date codes on small block cylinder heads can usually be found directly underneath the casting number. 94 intakes, 1. 1) 346238 oval port bare head 1) 14092360 oval port bare head 1) pair of bare big oval ports 3931063 1969-70 396/427 Closed chamber 100. The traditional Oldsmobile V-8 is unique, in that both small- and big-block versions can share the same cylinder head castings. See the sidebar on date codes for decoding information. All engines are coded with a prefix and a suffix that identify the motor. CASTING NUMBER LOCATIONS CHEVY V-8 BORE AND STROKE LIST CHEVY V-8 CRANKSHAFT JOURNAL SIZES CHEVY V-8 CRANKSHAFT CASTING NUMBERS CHEVY V-8 NOTES V-8 CRATE MOTORS FOR SALE HOT LINKS GotMortec - Small-Block Engine Enthusiasts If you need reliable Chevy casting number lists for small block, big block and 348-409 V-8 blocks, cranks and heads, we've got it. Shop for the perfect big block chevy gift from our wide selection of designs, or create your own personalized gifts. Date codes can be found cast into most major engine parts such as; block, heads, intake manifolds*, exhaust manifolds, crankshaft, water pump and flywheels. Note the cylinder head. The block casting code can also help you identify a Chevrolet engine. com - Hot Rods - Musclecars - Project Cars - Farm Trucks. Heads are 1966 closed chambers 3872702 Selling as a core. 5" high indicates a big block, while a number indicates a small block. 2002 chevy 1500 in Flagstaff, Arizona at AmericanListed. Cylinder heads with oval intake ports are smaller in volume and designed for greater low-RPM torque. Chevrolet Big Block Engine Production Suffix Codes Chrysler Hemi Engine Codes All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. Research Topic: How to Identify a 1968-1970 Big Block Chevy II or Nova 1. The earlier big blocks Pre 90 are the same as far as bolt holes but each had different wall thickness which limited them to bore sizes. One of the most rare cylinder head for the big block chevy is the 375 horsepower 396 and the ZL-1 427 aluminum head. Small Block Chevy Engine Block Identification; Chevy Small Block V-8 Casting Numbers; Chevy V-8 Big Block Casting Numbers; Chevy Engine Codes (Lots of Engine Related Information & Numbers) Corvette Options. To help you answer that question, we have put together this cylinder head ID listing of Gen-I and Gen-II small-block Chevy heads. How can I identify the model of the BRODIX head that I have? A. Re: sbc head date codes While messing around under the hood today I finally decided to see exactly what my engine block came from. The code is usually found on the top of the head in between two valves and the rocker arm studs. Small Block Chevy Engine Block Identification; Chevy Small Block V-8 Casting Numbers; Chevy V-8 Big Block Casting Numbers; Chevy Engine Codes (Lots of Engine Related Information & Numbers) Chevy II - Nova Options. Casting number 3946074. Still in plastic. I'm in the process of wiring up my HP EFI with a CNP ignition and I need some guidance on the wiring. Are Large Valves in 305 Heads a good idea? Will installing larger valves improve performance of a 305 cylinder head?. $1400 Moves a big boat on pump. Also have aluminum heads of same era. Aluminum Chevrolet big block heads numbered 3904392, 3919842, and 3946074. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. Chevy small block cylinder head casting codes. The transmission and rear. When was it made? Most of the individual parts on your Camaro have a date code to indicate the time of manufacture. The inventory changes sometimes quicker than I can keep up with it here. 06 valve is. What type of truck has a chevy big block engine? you need the date code on the side of the block it will be a series of numbers and letters first its the month, then day, then year. They also work great when using Raised Port Heads on a Standard Deck Block. 1958-62 Block Date Code location. Date codes K-7-6, J-4-6 corvette cylinder heads big block 427 390-400hp. 6 small port efficiency cylinder heads, Four bolt mains upgrade cam kit, Reverse rotation add $300 Roller rockers & hardened pushrods add $350~ Steel crankshaft add $500 Reverse rotation add $600. heads such as the Edelbrock, A-429, SCJ, TFS Street heads and etc. Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. A letter indicates a big block, a number indicates a small block. The traditional Oldsmobile V-8 is unique, in that both small- and big-block versions can share the same cylinder head castings. The earlier big blocks Pre 90 are the same as far as bolt holes but each had different wall thickness which limited them to bore sizes. Big Block Chevy Cylinder Head Identification Engine Especially when it comes to the block, with out cast , date code and suffix your motor could be out of a. We've made some really nice one piece aluminum adaptors, that allow you to run a big block Chevy header on a Ford style exhaust port. Well we've taken It 10 steps further with a big block Chevy. Subject: 441 sb chevy heads: Reply: There are at LEAST 2 different head numbers that I could find that end with 441: 3923441- a 350 head used from 1967?-1976; and 3932441- used from 1967-1979 on 327s and 350s. Original 1970 Chevy Nova LT1 Engine More stamping and the GM part number 3972121 with the Holly List number 4555 and date code 021. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Small Block Chevy Engine Block Codes C10 Trucks Library Small Block Chevy Engine Block Codes - C10Trucks. Plus I plan on milling the heads and decking the block to get it as high as i can. Buy 1 Small Block Bolt on eBay now! No Results for "1 small block bolt" New 2. Big Block Chevy W 348 409 Shorty Blockhugger Silver Coated Headers Bbc. com It shows that you are unregistered, or not logged in to The Forum. This is an original GM aluminum intake manifold for Big Block Chevy engines with oval port heads. A blue 455 is generally considered a more desirable motor to build. All engines are coded with a prefix and a suffix that identify the motor. Engine codes for these motors look like this; LM7, LM4, L59, LQ9, and so on. It had slightly reduced power compared to the L29 454 and used a different PCM. Chevy Performance Crate Engines Big Block aftermarket Siamese 4. chevy 327-350 head 1968-1969 camel hump CHEVY ENGINE CASTING NUMBER AND ENGINE NUMBER LOCATION ON THE BLOCK All of Chevy Engine Casting Numbers Are Usually Located Behind The Dist. Please get your facts straight before you open your trap and spout crap about something you have no clue about. 1965 396 3856208 Big Block Chevy Rectangular Port Heads Factory High Performance. Cylinder Head – Date codes for small- and big-block V8 cylinder heads are usually found next to the casting number underneath the valve cover. com – Classifieds across Arizona. Used pair of Dynatech headers, part # 750-9190. The name first appeared in 1986 on a 4. Buy 1 Small Block Bolt on eBay now! No Results for "1 small block bolt" New 2. 880 exhaust Pac retainers Pac triple roller springs Good to. Some parts will have date codes stamped into them such as the engine block assembly date and VIN code, rear axle, alternator, generator, distributor and starter. Call show contact info. Engine codes for these motors look like this; LM7, LM4, L59, LQ9, and so on. Block hot tanked,magged,bored. Our stock is at your disposal. Fully built old school style for your gasser or hot rod project. Step two is to match the engine suffix code, and the date code, with the engine suffix codes listed in this book. 1967 Corvette Head 391 Early Date Code 435hp 427 1961 61 283 Sbc Block Std. The venerable small-block Chevy V8 engine has seen an amazing evolution in the past 60 years. decently aggressive cam (can’t remember specs). Engine codes for these motors look like this; LM7, LM4, L59, LQ9, and so on. Big Block Chevy Part #3919840 Closed Chambered Rect. We have stamped some heads on the exhaust side of the head as well. Chevy Engine Codes - on Chevy-Camaro. - 1GC1KTEY2KF203485. IF YOU NEED SHIPPING, CONTACT US FOR AN ESTIMATE. Chevy V8 Head Casting Number Locations. accueil engine code. Date: 572 cubic inch CHEVY BIG BLOCK - Chevy Impala Forums: NOS GM Big Block Chevy GMC Curved Dipstick Oil Tube 396 402 427 454 RS, SS, Z28 HTML code is Off. Are Large Valves in 305 Heads a good idea? Will installing larger valves improve performance of a 305 cylinder head?. call 435 hp 4 bolt main chevy 427 short block, block casting # is 3918321, date code is l-27-7(december 27-1967),front pad reads t0110iu. com offers users access to a list of engine suffix codes for both small block and big block Chevrolet engines. My intake mani fold is on and engines in boat. YEAR CODE CID APPLICATION VIN HP BBLS Body usage/Comments 1955 FB 265 Power Pack, glide 155 4 car & truck. If you're looking at the engine code - this is already known. com Home of the Fastest Big Blocks Your #1 site of technical information for the 385 series engines and the 460ford. Watch as we compare popular oval-port big-block Chevy cylinder heads on the flow bench and the dyno. Chevy 396 409 427 454 block engine heads blocks engines. Cylinder Head - Date codes for small- and big-block V8 cylinder heads are usually found next to the casting number underneath the valve cover. com; Register; Advertising; Link To Us; Contact Us; Forums. Chevrolet Big Chevrolet Suffix Engine Codes "AAA - CTB" Year: Code: Model: CID: HP: Trans: Comment/RPO. Square port, closed chamber heads. 02, this is a long block no tin work. Telling the difference between the various SBC heads can be hard if all there is to go on is what they look like. Cylinder Head – Date codes for small- and big-block V8 cylinder heads are usually found next to the casting number underneath the valve cover. I can also use a thin head gasket too. RECTANGULAR PORT - Valve size 2. 19 intake 1. The transmission and rear. 900" bore spacing T = Tall deck Oval includes both "peanut" (also called "round") ports and large oval ports We would like to thank everyone that has contributed to the data provided on this site. You should look closely at a cylinder head's casting date because many heads have been found that have been altered to represent an earlier or more expensive cylinder head. Big Block Chevy: Above timing chain cover. Find great deals on eBay for big block chevy parts and big block chevy aluminum heads. Production of the original small-block began in the fall of 1954, for the 1955 model year, with a displacement of 265 cid, growing incrementally over time until reaching 400 cid in 1970. BBC BIG BLOCK CHEVY FACTORY ALUMINUM HEADS 3946074 SNOWFLAKE The exhaust ports are round. 88 valves, ported by a guy in Bay City. Let us know what you need for your GM engine. Chevy 350 engine parts available. A torquey 235 cubic inch inline 6 mated to. 250: 14096859???? 502: 4. Fifty-five years of manufacturing have left us with an endless number of different cylinder heads for the SBC engines. This list of codes is a summarization, it is not complete nor all inclusive. GM body designation. By: by Editors of Chevy High Performance. Close; Dart Machinery, the undisputed leader in high performance engine blocks and cylinder heads, has joined forces. 00,make offer, cash only, 304-522-4567, 304-939-2652, 304-634-4045 ,304-697-6619, no calls after 9:30pm and no text messages serious. The earlier big blocks Pre 90 are the same as far as bolt holes but each had different wall thickness which limited them to bore sizes. Chevy decided instead to sell. The block casting number on small block and big block Chevrolet V8 motors is located on a ledge found at the rear of the block, most often on the driver's side. George, This is weird you say small block but suffix code TPJ comes back 454 cu. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. In 1991 , GM introduced the GEN V Big blocks , these have significant design changes that go far past just 1 piece rear seal , revised cooling, and non- adjustable valve train and no fuel pump boss. Our stock is at your disposal. It is usually found on the top of the head in between two valves and the rocker arm studs. The Chevrolet "Big Block" is a term for a series of large displacement V8 engines that have been developed and produced in the United States from the 1950s until 2009. On the side of the block just above the freeze plugs, sometimes you will find a strengthening support or "rib" cast into the block. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. Are Large Valves in 305 Heads a good idea? Will installing larger valves improve performance of a 305 cylinder head?. Some cast iron heads have the casting number on the underside of an intake runner. 327 & 350 Chevy blocks MS and CNV block codes big block heads 3917215 date codes L 28 7---A 2 8 small block intake manifolds 3919803 C 12 8, 3844459 C 23 4. needs oil pan, intake and rods with pistons since they seem to have disappeared. 1967 Corvette Head 391 Early Date Code 435hp 427 1961 61 283 Sbc Block Std. 550 lift cam? Thats not really that big for a big block right?. $400 for the pair!. If I ever get motivated enough to get some good heads, I'll have a pretty healthy big block. Now, when the question "what heads are these, and will they work for me?" arises while walking around a swap meet, you can at least know what is sitting on the ground or table in front of you. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the. Ted:Based on info I see, this could be either a 69-72 396/402 V8 Big Block or a 69-73 454 V8 big block. The suffix code is located on a machined boss located on the front passenger side of the block where the head and block meet. its either a 402 or a 396. it's a 2 bolt main and. 94 intakes and 1. The number on the front passenger side of the engine block will NOT tell you the displacement of the engine block. I have for sale a very nice set of 1971 Big Block Chevy L78 LS6 454 Rectangle Port Heads 3964291 291 date codes are L-2-70 B-5-71 (two months apart). The venerable small-block Chevy V8 engine has seen an amazing evolution in the past 60 years. The code is usually found on the top of the head in between two valves and the rocker arm studs. Small Block Chevy Engine Block Codes C10 Trucks Library Small Block Chevy Engine Block Codes - C10Trucks. My dad passed and he had this engine. The Chevelle SS was the high performance version of the Chevy Chevelle. You will also need to obtain the casting number in addition to the date code on your big-block 454. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. What type of truck has a chevy big block engine? you need the date code on the side of the block it will be a series of numbers and letters first its the month, then day, then year. The stamping is usually located on the end of the casting above the accessory bolt area just below the valve cover rail. do NOT contact me with unsolicited services or offers. Quickly, A = Chevelle, F = Camaro, X = Nova. Chevy Performance Crate Engines Big Block aftermarket Siamese 4. Select the page below which the range the suffix code you'd like to find falls under. "Mild" is a relative term (about as informative as 3/4 race and full race was back in the fifties when describing a cam). RECTANGULAR PORT - Valve size 2. The code is usually found on the top of the head in between two valves and the rocker arm studs. Flywheel Diameter (12. Close; Dart Machinery, the undisputed leader in high performance engine blocks and cylinder heads, has joined forces. 060 flat tops with 461 heads 2. “Chevy Runs Deep. Displacement. The big block Chevy engine is a family of large displacement motors manufactured by General motors beginning in the 1950's. 468 Big Block Chevy Engine BBC L88. Block Vin Code: 195725805 1969 Corvette 427 435 HP Date Code: F149 June 14, 1969 Right Head Casting Code: 3964291 Date Code F39: July 3rd 1969 GM4T Left Head Casting Code: 3964291 Left Head Date Code: F49 July 4th 1969 GM3T It's a mid to late 427 bbc 435hp heads out of a 69 4-spd corvette out of michigan. 6 small port efficiency cylinder heads, Four bolt mains upgrade cam kit, Reverse rotation add $300 Roller rockers & hardened pushrods add $350~ Steel crankshaft add $500 Reverse rotation add $600. (See Image). accueil engine code. 1965-1990 Corvette Chevelle Camaro Chevy Nova 1 Used Lot Of 300 Bare Big Blocks 1965-1990 Corvette. i have a big block chevy long block code 3965954, and i am curious as to it's value. A big block measures 14" between the heads at the manifold base. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. 500 bore Block. I include the. Life is full of constants. $400 for the pair!. and had an aluminum intake with the big valve heads…. The engine code can appear in one of two places - on the pad just below the passenger side head or on a boss located on the block near the oil filter mounting. accueil engine code. Quickly, A = Chevelle, F = Camaro, X = Nova. Big Block Chevy 348 And 409 1956-1965 V8 Black Hi-perf Spark Plug Wires-points Cap Rare 1963 Chevrolet - $370. Displacement. - mortec chevrolet engine information, chevy v-8 casting numbers, bore and stroke, parts for sale, engine building, chevy restoration and racers. BBC Chevy Big Block Heads 049 - $299. Big Block Chevy Headers for 67-69 Camaro and 68-74 Nova are designed for use with a 572 Tall Deck Engine using cylinder heads that use the factory Big Block Chevy bolt pattern. Big Block Chevy Block Casting Numbers. the second heads, they flow about 152 cfm through the intake valve and 93. Horse Power/ Torque. Small Blocks are stamped on a pad in front of the passenger side cylinder head and are often covered by the alternator. Drawings by David Kimble. Forum Home. True big block date coded. Casting date A287 ~ January 28, 1967 ~ located on the bell housing flange on the passenger side of 283/327 engine. Understanding Production Date Codes. See the sidebar on date codes for decoding information. All the threads look good. Chevrolet Big Chevrolet Suffix Engine Codes "AAA - CTB" Year: Code: Model: CID: HP: Trans: Comment/RPO. casting number: 3956618 According to info this block was made only in 1969. 5" high indicates a big block, while a number indicates a small block. Chevrolet Performance offers Intake Manifolds and Components for your Big-Block engine build or project car. Big-Block Chevy Engine Buildups A detailed an illustrated guide on how to get the most performance out of your Chevy engine. 3 L V6 but is now used on a wide range of different engines. 300" deck We would like to thank everyone that has contributed to the data provided on this site. Posted heads have been milled up to. The Chevy V8 block casting number is generally atop the transmission mounting area of the block. The suffix tells you application, original model, Engine RPO, and HP and transmission that were originally mated to the engine. Chevy Performance Cylinder Heads. 880 exhaust Pac retainers Pac triple roller springs Good to. 06 valve is. Chevy smallblock and big block cylinder heads have the CASTING NUMBER and the CASTING DATE located in the rocker arm valley. I still got it wrong the first time. Mercruiser Block ID Codes - Big Block V8 Marine Engines The specific model/vintage of Big Block V8 Mercruiser Engine can be determined by looking at the last letters of the engine code which is stamped by General Motors at the time of assembly on all complete Marine Longblocks. You can decode them on the Engine Code Page. LS engines are ALL considered small blocks. IF YOU NEED SHIPPING, CONTACT US FOR AN ESTIMATE. General Tech - 454 big block How much cyl. Small Blocks are stamped on a pad in front of the passenger side cylinder head and are often covered by the alternator. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. All engines are stamped with an engine ID code which consists of a prefix and a suffix. There are two basic chevrolet casting numbers identification needs that this book serves. This is our namesake, ChevyCool. stands behind each product we manufacture 100%. Big Blocks The following information is copyright Tracy Performance and is for your personal reference only. The theme here is big displacement in a small-block made of aluminum, re-engineered with modern technology and race driven design. 375 hp 4 bolt mains casting # 3955272 date d 29-8 heads 3919840 date h 1-8 chevy aluminum intake $3500 big block heads chevy (2) oval port, closed chamber date b 15-7 b 13-7 casting #. 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. 350 chevy with camel back heads 375 hp Just rebuilt 350. Chevy Big Block Aluminum Intake #3933163 w/snowflake. Preparing a block for machining Big block Chevy bore and stroke Engine block casting numbers Oval port head casting numbers Rectangular port head numbers Big block Chevy valve covers Big block Chevy resources Some related pages on Roadsters. Garage Sale. We are constantly searching for deals and our store pages update by the hour so we can offer the best prices on 396 Chevy Engines. Date codes K-7-6, J-4-6 corvette cylinder heads big block 427 390-400hp. 600 Stainless Date Code 92965 327 Big Block Chevy. This front view of the World block shows the traditional 348/409 water pump bosses, but the timing chain cover pattern is that of a big-block Chevy. No matter what you're driving, we have the right Used Small Block Chevy Engine for your automobile. Chevy small block cylinder head casting codes. BBC Chevy Big Block Heads 049 - $299. do NOT contact me with unsolicited services or offers. Block hot tanked,magged,bored. a completley rebuilt 1968 total = $. The sun will rise each morning, Newton's apple will fall, and if you are going to make power with a big-block Chevy, you have to use rectangle-port cylinder heads. 1) 346238 oval port bare head 1) 14092360 oval port bare head 1) pair of bare big oval ports 3931063 1969-70 396/427 Closed chamber 100. Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. This big port manifold was intended for use with the 57 – up big port heads. 1975-76 heads are 76cc, open chamber. You can find this code at the rear of the block on the left (driver) side on the top of the. Oval port, closed chamber. The location of this code depends on the type of engine, typically as follows: Small Block Chevy: Machined pad in front of the passenger side cylinder. 14015445 engine number identification Can this engine run with a carburetor and are there any suggestion im pulling a small block 350 out of my 1974 1/2 ton c10 chevy pickup and plan on installing a 454 with casting numbers 14015445. I want to sell it, it is a professionally rebuilt short block. Code Year CID HP Model Comment. it is recommended to install the water pump before doing up the. it's a 2 bolt main and. 5" high followed by the casting number. 500 bore Block. hi perf passenger block and hi perf heads. date code d 6 7 this head was hot tank and magnaflux ready to be completed and install on your vehicle. The location of this code depends on the type of engine, typically as follows: Small Block Chevy: Machined pad in front of the passenger side cylinder. (Although to me it was more of the throaty rumble of a sleeping beast. 88 Ex Complete With Guild Plates Skrew in Studs No Vavles or Spings Please Call Rat Hot Rod Corvette. 4 bolt main, first bowtie block with siamesed bores: 10114182???? 454: 4. Small block Chevy heads have been manufactured since 1955, and have been used in high performance applications as soon as the first one rolled off the assembly line. V8 Block & Head Casting Numbers. 1964-1973. Freshened up in stock configuration Cleaned and magnafluxed Valve job Surfaced Some seats replaced bronze guides new seals and locks hydraulic roller springs. Heads 781 casting. Cylinder Head – Date codes for small- and big-block V8 cylinder heads are usually found next to the casting number underneath the valve cover. Note: Many data bases do not include all the truck suffix codes, so it's not at all uncommon for one to not show up. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. We've made some really nice one piece aluminum adaptors, that allow you to run a big block Chevy header on a Ford style exhaust port. The month code is below. Mark Lindquist offers his tip of the month and answers a readers' question about matching numbers for a 454 big-block engine. Big Block Chevrolet Engine Block Casting Numbers Big Block Chevy 366 396 402 427 454 Block Casting Small Block Chevy 265-350 Small Block V-8 Passenger Car Bellhousing Part Numbers. This was started in the 1969 model year on 440's (E 440 code on the ID pad), or approx mid '68 casting date. No matter what you're driving, we have the right Used Small Block Chevy Engine for your automobile. While few would ever recommend bolting small-block heads on a big-block engine, using the big-block heads atop a small-block bottom end is a cool hot rod trick. Aluminum Olds/Chevy DRCE 3 "Pro Stock" for blocks with 4. We have stamped some heads on the exhaust side of the head as well. Chevy small block cylinder head casting codes. If anyone has a photo of a KNOWN 1970 block with a single digit year code (0), please send me a photo of it and how you know it's a 1970 block. Compression Ratio. Research Topic: How to Identify a 1968-1970 Big Block Chevy II or Nova 1. Best way to drain coolant? General. com offers users access to a list of engine suffix codes for both small block and big block Chevrolet engines. Spin Tech pro street mufflers with stainless steel 2. Ran still in. Chevrolet Big Block Cylinder Head Casting Numbers. BBC Blocks. 4L/454 Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing!. 2 cfm through the exhaust valve stock 1. If you don't find what your looking for try the search box to the left or check back. It could be a 302, 327, 350 block. Big Block Chevy V-8 Casting Numbers. i have a big block chevy long block code 3965954, and i am curious as to it's value. these are a matching pair of heads that i ran on my race car years ago. Each block is cleaned and pressure tested. This block was produced largely in 1990, but production did spill over into 1991 (read your date codes). How to Build Killer Big Block Chevy Engines. It could be a 302, 327, 350 block. Free 2-day shipping. rectangular port, closed chamber, 2. Whether you have a 396 cid or a 454 rat motor, Big-Block Chevy Performance is your guide to the fast lane!. External casting marks on cylinder heads have caused confusion among a lot of people when they first glance at a set of heads. Only big block chevelle in '65 was a Z-16…. General Tech - 454 big block How much cyl. Aluminum Olds/Chevy DRCE 3 "Pro Stock" for blocks with 4. Running 454 big block chevy oval port heads comp cams parts flat tops (hastings ne) Sold at 2500 $ For sale is a running 454 bbc. Join Date: Jun 2006. BBC Engine Block Casting Numbers 3975945, 1970, 454, with manual transmission. All engines are coded with a prefix and a suffix that identify the motor. the body numbers is on the vechicle identification number plates located at the top left of the instrument panel. I have for sale a very nice set of 1971 Big Block Chevy L78 LS6 454 Rectangle Port Heads 3964291 291 date codes are L-2-70 B-5-71 (two months apart).