5.0 Pusrod Length

[Hammershop]

friend just put a set of aftermarket heads on his 85 H.O. and now the pushrods are too short by a hundred thousandths,,dont know what heads hes got but anyone run into that ?,,originals are 6.248 and he needs 6.350,,easy enough to locate but the second question; original replacements go for about $40 a set ,,the only longer ones we've found are about $150 from the cam companies,,why the difference in price and does anyone know a source for more economical replacements?

 

[liljoe07]

Longer ones for most aftermarket heads are hardened since they are used with guide plates 99% of the time. Check out Trick Flow pushrods, they are usually priced well.

And yes, when going to most aftermarket heads, pushrod length will change.

 

[Hammershop]

thanks,,guess that's how they make some extra cash since the longer ones are so much ,,seems like the rocker arm geometry would be affected tho

 

[liljoe07]

Maybe I'm lost. How did he come up with the measurement if he didn't check rocker geometry?

 

[Hammershop]

with an adjustable pushrod length checking tool,,only way I know of to get an accurate measurement

 

[liljoe07]

Then the rocker geometry should be fine. Assuming he measured right.