Join Date: Aug 1998
Location: Waldorf Md. USA
Re: Enlarged Valve spring pockets to accept 1.437 springs
I had those heads on my Chevelle for many years ... nice working heads. As far as the valve springs, the main problem with using the small spring is not having anything to keep it from walking around. If there is room for some type of spring cup that might help, but personally I would just find a 1.437 spring that will work with your cam. There are plenty of them available.
As far as the angle plugs with the shields, I dont see where it would be a problem. Each pair of plugs is angled towards eachother so the shields should not affect anything.
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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