Quote:
Originally Posted by NSSGTO
Looking at building a legal SS engine for a 66 GTO with a 389. Edelbrock states the 60587 NHRA approved head is legal for a 389. The only info I can find from NHRA states the 092/093 factory castings are legal.
I do not have a new rule book in front of me at this time. Anyone know if these are legal?
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Head to Dwight Southerland's site and get registered. There is all the info you'll ever need including technical specs and classification. And it's in a much more presentable form than NHRA has. -Al
http://www.classracerinfo.com/default.aspx