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05-25-2023, 10:37 PM
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#3 |
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Member
Join Date: Feb 2016
Posts: 274
Likes: 98
Liked 48 Times in 44 Posts
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Re: When did the 426-4v Hemi & 427-4v HiRiser become legal?
Pretty good answer here, thread from 3 years ago.
Looks like maybe 15 years ago the Race Hemi 4v and 427 HiRiser 4v became NHRA legal. But it appears back circa 1964-1971 it was all 8v. http://classracer.com/classforum/sho...=38252&page=53 |
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