L98 Heads Fit Stock 305? Too Much?
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Car: 1988 Firebird S/E
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L-98 heads are not "too much" or a 305.
Cast iron L-98 heads will drop the compression ratio of a stock
305 a little. The combustion chamber size is larger 64cc VS 58cc's They could be milled to 58cc's to maintain the cr if you want.
The aluminum L-98 heads have the same 58cc combustion chambers as stock 305 heads.
Either will work well on a 305 with their larger valves especially with a little porting.
Cast iron L-98 heads will drop the compression ratio of a stock
305 a little. The combustion chamber size is larger 64cc VS 58cc's They could be milled to 58cc's to maintain the cr if you want.
The aluminum L-98 heads have the same 58cc combustion chambers as stock 305 heads.
Either will work well on a 305 with their larger valves especially with a little porting.
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