Quote:
Originally Posted by 442OLDS
Unless it's a misprint,the B of the B-O-P racers have 10.5 compression pistons in 1971,1972,1973 on the engine blueprint specs.
I always thought the 1971 engines started the era of low compression pistons and unleaded fuel.But I might be wrong,as I was only 5 or 6 years old at the time.I know the O got low compression pistons.
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When I was growing up 10.5:1 WAS low compression!
