Some NOS wake it up:eek::cool:
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Some NOS wake it up:eek::cool:
Explosions tend to wake up the neighbors, too :eek:
if it's in good shape, ya can dust it 10 donkeys per hole:eek:
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I think i mentioned it before; TOM (Ireland ) sent out a nitrous kit to P J (Paul Bender) in late 70's or early 80's for S E boats 75 horse EVINRUDDERS . Several tried it , made their boats go like stink. No trouble,as far as I know . But, a mild kit , only 30 additional H P . But, out of the corners, came on like jack the bear .
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I think I gotcha on the Evinson Johnrudes , BUTT ! Could Mk 75H get 10 donkeys /hole on his 6 hole muck 75 ? or woodit "Blow" ?
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Is yer fully modded motor ORIGINALLY a genuine MK75H , or a fishing Mk75 dockbuster ?
Is it possible to bore out the original sleeves from 2&7/16" TO 2&9/16" ? the Mk75 to Mk78 size? A local guy here claimed his was - I was very skeptical. Lon Stevens told me that about .050" was practical .Correction, I just remembered that he said you could get away with boring out about 1/2 of the sleeve thickness , but that .050 pistons should be available to save old worn out blocks .
Why not just use a Mk78 block? They are essentially the same other than the transfer passages and post 1960 Mk75 replacement blocks were based on the Mk78/700 block (same transfer passages) with smaller sleeves. The only difference was the bore and the text on the side of the motor.
I'm not certain anyone has a block with an original Mk75H serial number. The one that Ron Collins had might be one, Bud Clark might have one, but I've never had a serial number reported to me from an actual block from the right series.
I have NO need for ANY 6 cylinder motor. I am just asking because of my curiosity. I am always wondering "what if ?'. I knew of one mk 75H motor. Stevens had hopped it up . way back in the 70's . I remember he did NOT like the port timing of the Mk 55h & Mk75H . He did like the Mk 58 port timing .