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Aluminum heads code number 10128374 what are they?
53 cc lt1 heads...92-93 good heads for porting
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 size valves are in a set of head with casting number 333882?
There 194 heads 1970 to 1980 heavy cast iron heads
What are the valves sizes on sbc heads casting number 3917291?
they could have either 1.94 intake 1.50 exhaust or 2.02 intake 1.60 exhaust
What heads are on a CNR Chevy 350?
they came with "186" casting number heads.........
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 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.
Are the valves in a 5.7 350 vortec in the heads?
yes there are 8 intake valves and 8 exhaust valves in the set of heads
What is this gm casting 3904390?
Heads: Casting Number 3904390 - 1966-68 427, Intake 2.06, Exhaust 1.72, Closed Chamber, 98.4 CC.
Can you swap 340 heads for 360s?
Yes, but the valves would be 1.88/1.60 and they would have less flow. You could use 318/340/360 heads on any LA small block. The only problems would be compression due to bigger combustion chambers in 340/360 heads than in 318 heads. Do a valves job and resurface the 340 heads. In 1971, the 340 came with the J heads and 2.02/1.60 valves. Since 1971 saw the introduction of the "360 style" J head, they used the same casting for 1971 340s and 360s, with different machining for the different sized valves. The 360 head actually saw first limited use in the 1970 340 Six-Pack AAR/TA, which also had 2.20/1.60 machined heads. Also the "J" heads can be machined for the big valves.
What is the cylinder head casting numbers?
This number will tell you what year and what moter the heads will fit.There are books put out for this purpose.
