changing to gn1;s

[WINDMILL]

Hey guys need some advise. i pulled the champion irons off and going to my gn1's,,,,what about my pushtubes(pushrods), what lenght will i be needing, or do i need to just measure them? if so how's the best way to measure for them,,,,,thanks
also what about my head studs? will i have to change them too?

 

[V6RACER]

Yes and Yes.

 

[MSDGN]

Get a pushrod checker from Comp...

 

[WINDMILL]

hows the best way to check for the length i need.

 

[WINDMILL]

head studs

on the head studs on the gn1's the 2 center studs are short,,,, is these the ones that needs to be longer looks like the rest of them will work. any info? i just hate to buy a new set if you dont need them