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Old 05-20-2019, 05:35 PM   #22
56markII
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Join Date: Nov 2016
Location: Sask. Canada
Posts: 40
Default Re: Isky 3/4 Max 1 Camshaft

Thanks again and speaking of stock heads and compression, this is most likely how Ford obtained a 7.5 CR on the 52-54 and the higher horsepower as well. The 6.8 on my Mercury is quite low and of course is best suited for a blown engine ;-). I have a degree wheel and this was required to time and modify the rotory intake valve plate on 2 stroke Rotax engines. The core with the EAB is possibly a 255, a Ford Reman engine from years ago but is riddled with cracks including through the valve train but it has a good crank and many other items including manifolds that fit my Merc.
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