11-27-2007, 02:00 PM

raj

Junior Member

Join Date: Dec 2005

Posts: 30

7M5 heads

I have a 1973 455 I'm going to rebuild eventually. I disassembled it and found it did in fact have 4X heads with press in rocker studs. THere is a guy in a local shop I was talking to and he said he had access to a set of 7M5 heads that a customer never picked up.

Is it worth upgrading to 7M5's from 4X's? I'm not going to have too serious of a build. What are 7M5 heads worth as cores or needing rebuilt? Thanks.

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