Quote:
Originally Posted by Bob Mulry
I didn't see a spec for lifter diameter in the NHRA Technical Bulletin for a 1988 Oldsmobile with a 307ci engine, but classracerinfo.com said .842 lifter?????
On line it looks like only the early Oldsmobile's take the .921 lifters????
Have you measured the lifter bores in your 307 block????
I am just confused
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I'm not at shop now but bores measure 920. I'll have to look at specs. Your making me second guess now.