Thread: High Power Flathead

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Originally Posted by IC2

I STILL don't have any idea on how 341CI are made from a 239C engine 'cause a 4.5 stroke and really the max safe bore of 3.375 without wet sleeve is still only 322. Piston speed of 3735 (@5000rpm) WILL kill that crank.

Sorry - I cannot believe that Nitrowarrior can't put some sort of graph on line to defend his outlandish statements of CID and Hp - so until then, it's a figment of his imagination.

If there are REAL supporting docs, then I'll be the first to apologize

well can you get a bigger bore with the french block??? thats the one i would look at
to start with and the scat crank with the H beam rods

Originally Posted by pat mccarthy

well can you get a bigger bore with the french block??? thats the one i would look at
to start with and the scat crank with the H beam rods

Thanks Pat - and yes, I am aware that a French block will go to 3.4375 or a bit more, but the stroke- ???? - I still would like the person that claims 400Hp out of a flathead to show me (us ?) how, at least in generalities. He has made some statements, but after numerous requests from several of us who have "lived" flatties in the past, wont support his claims. I don't want his business nor do I want his trade secrets - only enough to make me start to believe that it's possible. So far he has stood behind that fits all statement that "his customers pay for that information".