0
These are heavy duty 350 truck heads with big low compression chambers around 78 ccs and small valves and ports. Not suitable for things other than medium size trucks with a dump/delivery/tow package that do real hard work at low engine speeds. You'll see these listed for crate motors and OEM truck production from the mid 1980's to the latter 90's, all of these applications are correct, unsaid about the crate engine is that it's a heavy duty truck replacement engine. These are not Swirl Port nor Vortec heads, if anything their design harkens back to the 283 and 327 economy car or HD truck engines of that era with very low compression and a 1.72 inch intake valve.
What else can I help you with?
What heads are on a CNR Chevy 350?
they came with "186" casting number heads.........
What is is the cc's and valve size for gm heads 10147898?
I have the same heads and from the info I found they 76cc heads with 1.72 intake valves
What stud size are Chevy heads casting number 397291?
The Chevy heads with casting number 397291 typically use 3/8-inch diameter rocker arm studs. These heads are commonly associated with small-block Chevrolet engines, particularly those produced in the late 1960s and early 1970s. Always confirm with specific engine specifications, as variations may exist based on production year and modifications.
What is the casting number for LT1 cylinder heads?
The casting number for LT1 cylinder heads is typically 14096217. This number can be found on the side of the cylinder head and is specific to the heads used in the 1992-1997 Chevrolet LT1 engines. It's important to verify the casting number to ensure compatibility with LT1 engine components.
What year is Chevy casting 460777?
The Chevy casting number 460777 corresponds to a cylinder head that was produced in 1972. These heads were typically used on various Chevy small block engines during that time. To confirm specifics about the application, it's recommended to check additional identifying marks or numbers on the head.
What is a 3973493 Chevy head casting?
1970-71 Chevrolet Small Block 400cid heads.
What is the combustion chamber size of heads with casting 376450?
The combustion chamber size of the heads with the casting number 376450 is 60cc. It is possible to install larger valves.
What are the valve sizes in the Chevy heads with the casting no 471 513?
1979 267 / 350 engine ! Danny Coleman
What are the stock diameters for the intake and exhaust valves on a 1978 Chevy 350?
You need to get a Casting # book and look up which heads you have.
What is the combustion chamber size of heads with casting number 354434?
The chambers are 60cc. The heads are from 77-78 307 engine.
How much does it cost to replace blown head gasket on 1998 Chevy Tahoe?
If it has a 5.3 engine, first have the cylinder heads pressure tested. Heads with a casting # of 706 like to crack in the number 1 head bolt hole. If this happens, replace head.
How can you tell what heads you have on a 350 small block?
Find the casting number on them... type "GM (insert casting number)" into a search engine and you should find what you're looking for.
