Isn't the cam going to effect that also?  My cam is a regrind on a 92 HO stick and the grinder told me the push rod length would be different.  As it worked out the length was perfect with the 6.400" rods I used on the old Comp Cam.

MS wrote:

Anybody put Edelbrock heads with stud mounted rockers on a Foxbody 5.0 roller block? Wondering if anybody knows what length pushrods are used in that combination.

I can't believe you don't have an adjustable push rod measure.
 

MS wrote:

Bullet Bob wrote:

Isn't the cam going to effect that also?  My cam is a regrind on a 92 HO stick and the grinder told me the push rod length would be different.  As it worked out the length was perfect with the 6.400" rods I used on the old Comp Cam.

I thought you had Trick Flow heads?

AFR 165's

MS wrote:

I bet the AFR 165 uses same length as Edelbrock with studs. Will try dome 6.40” to start with.
Thanks, Bullet

I also have almost a complete set of "cut to fit" from Comp.  They came with a drill and press in ends.  Those rods were so hard I only got two out of a drill bit...then it broke.  I was drilling them on the lathe so it wasn't like I was doing a hand job.  I got pi$$ed and just bought the 6.400's which were close enough.  That's what I get for trying to do it "right".

Holler if you want those....garage points.

TKOPerformance wrote:

I imagine 6.400" is going to be close.  I have AFR 185s on my 331 and used 6.375".  I have a fairly thick Cometic gasket on mine that is 0.040" thick.

I'm using Fel-Pro 1101-1 gasket whick is compressed at .041-.043.  Also, it takes a lot of pushrod length change to make a relatively small change in rocker position over the valve stem.  My test rods give a "Perfectly" centered rocker on the valve stem with the valve fully closed with 6.372 rod.  But, the over-the-counter 6.400 rods show a very nicely centered total travel area.