Join Date: May 2009
408w pushrod length question
Have a 351w 9.49 deck,twisted wedge heads.
The narrowest pattern is a 8.250 push rod(.040),but it is out toward the exhaust side.If you split the valve stem into quarters it is probably in the 3rd outer quarter of the valve stem.Anything below 8 inches has the rocker arm bottoming out on the rocker stud.It goes from being so short that the rocker arm bottoms out to giving a pattern on the exhaust side of the valve tip.If I go shorter than 8.250 the pattern gets wider.At 8.150 is has widened to about .070
Are the lengths at all common for this set up.I know they vary,but is this even in the ball park.I am thinking it is just impossible to have everything correct and the wear pattern be in the center using these rocker arms.
These are Harland Sharp rockers.And this is a small base cam
'93 GT 410w,90mm accufab,60lb,ba2400,170 trick flow,comp cam 35-426-8,super victor efi,tremec 3550,spec 2+,3.73 gears,Moates QuarterHorse