Thread: Help me out, thinking weird again

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Originally Posted by ojh

Ferocious. I have a few questions, on page 4 there were statements about short stroke being hard to get compression - care to elaborste? Also mention of an 800lift cam, will that fit into the cam hole? Or do they have BBC size cam bore?

yes its swep dist.more adds CR with less or no dome on pistons. the more stroke the less dome or less cc you need to get CR up. the bigger the stroke the more CR you can get with less dome . with big domes you get bad flame travel .like jerry said . spark plugs can get in the way bigger valve cut for hi lift big cams take a way from dome CC .all this some one need to find out when you build a engine like this. on custom piston i work most all this out before the pistons are made . you can get 15to1 with a flat top and 90 cc chamber head on some bbc engines .the cam would be for bbc cam bearings and core will take a 500 lobe with 1.6 rockers and use a 903 with a 810 wheel