Join Date: Feb 2002
Location: Satellite Beach, FL
Taken from a good article I found. Which one of the problems I found when taking my previous 351w apart was the high wear on the sides of the pistons and scratches in the cylinder walls.
"The longer rod allows the piston to come to a stop at the top of the bore and accelerate away much more slowly than a short rod engine. This slower motion translates into a lower instantaneous velocity and hence lower stresses on the piston. Another strong effect on mechanical stress levels is the angle of the connecting rod with the bore centerline during the engine cycle. The smaller the centerline angle, the less the side loading on the cylinder wall. The longer rod will have less centerline angle for the same crank angle than the shorter rod and therefore has lower side loadings. "
1992 Notchback Black on Black
1993 Cobra Clone 357W, TFS R Intake, 60 lb inj, Vic Jr Heads, Vortech T-Trim, P/A C4, 606 RWHP @13 PSI; 10.44@130 on 8 lbs
2001 BMW M3 Driver
Last edited by Karl Wesson; 06-09-2009 at 11:10 PM.