---> Tim Berry: more 4" strocker crank info

From: mike d. (miggitymike@juno.com)
Date: Sun Apr 16 2000 - 22:23:48 EDT


Tim,
here is some more info I gathered on the stroker crank: I got it from a
gentleman on DiRT.

>>>>>>>>>
I just picked up the P5007258 360 mains version at the local
dealer in Bismarck,ND population 50,000 (600,000 in the
whole state). So anyone should be able to get one.

Price; $295.95 total including tax.

And it looks pretty good to me. Full radius journals. Looks
stronger than the stock 360 crank.

It will probably take me a while to built an engine around
it - we are building a house. Hey it cost less than a
bathtub!

The crank rotates fine no clearance problems. I mocked up a
stock 360 piston on a full float rod. The rod nut would need
a notch on the outside of the cylinder bottoms about the
size of the nut itself. This was on cylinders 1,2,3. I
didn't check the others. There was some (0.010"?)
interference between the crank counterweights and the bottom
of the piston. At about top dead center the piston stuck out
of the block about 0.134".

With {pre-Magnum} open chamber heads and a cam that was not
too big you could actually make the stock {pre-Magnum} 360
piston work! Yes the compression would be high. 14.5-1
with -.110" deck height which fits into the open chamber SB
head. (Too much dirt track claimer engine building affecting
my brain.)<<<<<

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