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461 heads

1K views 4 replies 3 participants last post by  toddalin 
#1 ·
Im building a factory motor for racing and I was wondering if there was ever a 461 Chevy head that came on a motor with under 10.25:1 compression. Any help would be great. A year would be even greater
 
#3 ·
The 461 heads were casted from 1964 to 1966.
The 461X heads were casted from 1960 to 1963.
Over the years one thing I always noticed about the 461's where they had smaller chambers than the later camel back heads.
I don't think they ever came on a engine with less than 10.5:1 compression.
During those years only 2 small blocks were in production, the 283 and the 327.
 
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