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Number 3917291 can be found on the 302 327 and 350 engines in 1967 to 1969 models. By Randy Bolig December 12 2018.
Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal state and local laws regulations and ordinances.
Gm cylinder head identification. Chevy cylinder head Identification - Small block casting numbers Big block cylinder head camel back heads double hump heads. Use these casting numbers to identify the heads you have. Small Block Casting numbers.
Small-Block Chevy Cylinder Head Identification. By Randy Bolig December 12 2018. When GM first introduced its small-block engine to the world it was specifically designed to give Chevrolet an edge over Fords flathead V-8.
This was in the mid-50s and before that Chevrolet relied on inline six-cylinder engines to power its passenger vehicles. However the flathead V-8 was a definite reason Chevrolet had to step-up its game. LX9 Left Head casting located above spark plug holes on exhaust side.
LX9 Right Head Sending Unit Below Freeze Plug casting located above spark plug holes on exhaust side. LZ4 Left Head casting located. Small block chevy head castings.
Casting Combustion Chamber size CCs Intake valve Exhaust valve Production Years Misc Engine. Over the counter 23 degree angle plug 196 cc intake runner Aluminum. The 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. Thats why we have put together this short big-block Chevy head ID guide to help you identify that swap-meet gold. Big-Block Chevy Cylinder Head Casting Numbers 330864.
68 through 84 oval port open chamber 206- and 172-inch valves. While there are visual cues that can help tell them apart like the fuelie double hump there are several ways to ID cylinder heads closer than using just visual cues. Edit Casting number The casting number cn is cast into the head as opposed to being stamped.
Small Block Chevrolet Cylinder Head casting numbers minuit10 corvette head chevy corvette l82. Casting number 3767462 identifies Camel Back heads on 327 engines in 1962 to 1967 GM models. Number 3782461 is found on heads on the 1964 to 1967 models equipped with the 327.
Number 3917291 can be found on the 302 327 and 350 engines in 1967 to 1969 models. Number 3927186 is found in the 1969 and 1970 models with the 302 and 350. 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 and made some corrections before making this list. I hope it helps you identify the Chevrolet engine parts you are working on. Big Block Chevy Cylinder Heads Open vs.
Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Closed-chamber cylinder heads have small combustion chamber volumes for high compression ratios with even mildly domed pistons. Chevrolet Big Block Cylinder Head Casting Numbers.
RECTANGULAR PORT - Valve size 219 intake 188 exhaust. Chevy V8 Casting Number Locations Chevy V8 SBC Block and Head Casting Numbers Chevy V8 BBC Block and Head Casting Numbers Chevy V8 W Motor 348-409 Casting Numbers Chevy V8 Crankshaft Casting Numbers Chevy V8 Crankshaft Journal Sizes Chevy V8 Bore and Stroke List Chevy V8 Notes SBC Crate Motors BBC Crate Motors SBC Cylinder Heads Holley Carb. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head.
It is usually found on the top of the head in between two valves and the rocker arm studs. Choose Group to View Cylinder Head Codes Select Cylinder Head Group ALL Head Codes 262 265 267 302 305 or 307 302 Only 327 350 400. History of the LS Engine and Cylinder Head Casting Number Spotters Guide.
LS1 LS6 LS2 LS3 LS4 L99 LS7 LSA LS9 LQ9 LQ4 L92 L94 LS Everything. An in-depth look at the LS engine series. The numbers you are looking for are stamped about 14 high and usually a Letter followed by three Numbers and ending in another Letter or two.
The first letter is almost always F since most GM engines were made in Flint Michigan. The following numbers are the month first followed by the day of the month. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head.
It is usually found on the top of the head in between two valves and the rocker arm studs. View Big Block Cylinder Head Codes Chevy Big Block Cylinder Head Codes ALL. Cast-iron Vortec cylinder head assembly for small-block engines from Chevrolet Performance.
Casting number 10239906 or 12558062. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal state and local laws regulations and ordinances.