Buick 300 crank to SD1 3.5
Posted by: dartonit
Date: June 06, 2008 05:46AM
I tried to read the whole articles of it, but i'm not to good in english, so there is one thing i don't understand.
Especially the connecting rods, and pistons. Can i use the old ones, or i have to use different (couse the longer stroke).
Main British Car:
'73 Vega GT 4.9L Rover/Buick Stroker
Re: Buick 300 crank to SD1 3.5
Posted by: NixVegaGT
Date: June 06, 2008 09:56AM
Connecting rods: Yes, used is good. Actually really good. They are forged units and nice.
Pistons: NO. You need new ones to make up the difference in stroke.
Total deckheight (center of the crank to the block top): ≈227.5 mm
Connecting rod length (center to center): 143.75 mm
Buick 300 stroke: 86.36 mm/2 = 43.18 mm
143.75 + 43.18 = 186.93
≈227.5 - 186.93 ≈ 40.5 mm
That is the piston height you need. ≈ 40.5 mm (1.59 in.) compression height for the piston.