I'm tryin to figure our what stock size and lenght pushrods are in the 86-5.0 so i can go out and get some new chromemoly ones

 

6.250

 

will it change length if you go to a a full roller rocker?? cause i'm thinkin of gettin the trickflow rockers but keeping the hydralic roller cam and lifters.

 

it shouldn't change to much..but either way if you get pedastal mount rockers you still need to check for proper contact spot of the roller tip on the valvestem and that is determined by push rod length so you need a checker to properly gauge everything

 

i know the heads i'm probably getting have the stud in the heads already so i was just goin with the stud mounted rockers but if the stock is 6.25 on the pushrod, would 6.375 be allowable? its not that much longer, i wouldn't think it wouldn't be that much of a tollerance problem but then again this is precision parts working together.