Big Block Cylinder Head Casting Numbers

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Feb 20, 2019.

Big-block Chevy head identification can be difficult. Would you know what you're looking at if you found a pair at the swap meet? Now you can.

Chevelle V8 Cylinder Head Casting Numbers – 1964 through 1972.

cover be it a small block V8 (283/307/327/350) or big block Mark IV V8 (396/402/454).

Chevy cylinder head Identification – Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. Find cast numbers. Cylinder Head ID.

Cylinder head porting is often equated with time and expense, and we’ve all heard horror stories about porting through the casting and.

so the numbers you see are real-world flow numbers for.

Within the last few years, General Motors revised the production-based big-block casting to accommodate features of the Mark IV and Gen V, enabling cylinder head and gasket interchangeability.

Casting Number. Year. Port Type. Chamber Type. C.I.D. Chamber Size. Notes. 330864. 68-84. oval. OPEN. 396, 402, 366T, 427T, 454. �Truck. 330865.

Number, Details. 10045427, Category: Cylinder Heads Type: Big Block V8 Date: Notes: rectangle port, Pontiac/Chevy Aluminum, 91cc chambers, Large Port,

Much like a spread-port big-block Chevy casting, these 429/460 race heads trace.

our standard-height exhaust port will flow over 275 cfm, a very stout number for a bolt-on-style 385-series cylinder.

For performance use you have to consider port shape and size, chamber design, and compatibility with later-model Gen V and VI blocks. Cylinder head casting.

Determine the casting date of the World cylinder head. World uses two dating systems, the first is two numbers separated by an "X," with the numbers representing the last two digits of the casting year. 1988 is identified by "8X8."

The classic Big-Block production engine was introduced in 1965. Cylinder-block casting combines traditional Big-Block heritage and modern production techniques for 21st-century performance.

The entire LS family of small-blocks was treated to high-flow cylinder.

big-block flow through significantly smaller ports. This is important when running these heads on (relatively).

BIG BLOCK CHEVY HEADS BEST AND WORSTThe 289 High Performance head to look for is the C3OE, which is the 1963 head casting with smaller 49.2-cc chambers for higher compression. The downside is this head also has smaller valves (1.67/1.39 inches), which can be increased to 1.94/1.60 inches to improve performance.

Locate the engine ID number located on the engine block. The location of this number will vary depending on the engine size. According to Nasty Z28 Second Generation Camaro Owners Group, the number for a small-block V8 is located on a pad at the front of the block on the passenger side, near the cylinder head; the number may be obscured by the alternator.

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CYLINDER HEADS The casting numbers for small-block Mopar and big-block Mopar are a seven-digit number, which is raised, and usually found in one of two locations. The first would be on the top of the intake runner, under the valve cover. The second location is on the underside of the intake runner on the cylinder head.

accueil engine code. Chevrolet. Chevrolet Big Block Cylinder Head Casting Numbers. RECTANGULAR PORT – Valve size 2.19 intake, 1.88 exhaust

We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified

Closed Chamber – A good way to describe big-block heads is to categorize them as.

BBC Cylinder Head Casting Numbers

Chevy casting numbers for blocks and heads for big block V8 engines.

to look on your engine for all of the casting numbers, casting dates and suffix codes,

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Get the best deal for Car & Truck Big Block Chevy Cylinder Heads & Parts.

Numbers:The cast number stamped on the heads is 3795586.

Buick V-6 Identification: The front-mounted angled distributor is an easy way to identify the Buick 225/231/252 from other GM six-cylinder.

the back of the block just under the head. In the case of.

Apr 20, 2018.

With the casting numbers available it can help simplify a daunting task.

For example, there is also an E7TE big-block Ford cylinder head, with.

I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. I actually went through several lists.