Quote:
Originally Posted by WILMASBOYL78
The 063 heads are great platform for a mild street motor...with some larger valves and some minor massaging they will make good power. Some folks call them a semi-open chamber design...very similar to the later 290 heads.
-wilma
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Bigger valves... these have 2.19 intake 1.88 exhaust. From what I read, that is the bigger size ?
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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