The combustion chamber size of the heads with the casting number 376450 is 60cc. It is possible to install larger valves.
The chambers are 60cc. The heads are from 77-78 307 engine.
IT's posted on Chevellestuff.com it says they have 74.56 cc combustion chabers and came on 1971 200 horse 307's
Should be 74cc
60cc
Heads: Casting Number 3904390 - 1966-68 427, Intake 2.06, Exhaust 1.72, Closed Chamber, 98.4 CC.
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
The cylinder walls will be cast iron. The heads are either cast iron or aluminum.
stock 350 heads are 72 or 74 cc
if you make the combustion chamber smaller for example by shaving the heads when the sparkplugs ignites , the piston will get pushed down harder there for make your engine go faster .In short, reducing the combustion chamber size increases the combustion ratio which increasing the explosive force of the air fuel mixture when it burns. The negative side of this is fuel with a higher octane rating will have to be used to run the engine.
no, small bore ,big combustion chamber you want big bore small chambers
if it would fit on there it probably wouldn't run the greatest. putting 305 heads on a 265 make the combustion chamber bigger, which causes a loss in compression... i wouldn't do it if i was you
Depends on the heads. The size is different for the exhaust valve and the intake valve, and different engines have different size valves. The valves are mechanical devices in the engine heads that open and close. The intake valve opens to let the air/gas mixture into the combustion chamber,. Both valves close the combustion chamber during the compression stroke, and the exhaust valve opens to let the burnt gas out during the exhaust stroke.