Lifter preload

[MarkJamesGN22]

I have searched and found thru all the posts here and articles from gnnttype that lifter preload should be around .030 to .035" . The posts I read were from back in the day, wanted to make sure you guys are still using that spec today?

Stock cam and lifters, thinner than stock RJC head gaskets, heads have been cleaned up also. So I am going to a shorter push rod. Springs are 100lb at the seat ( we're set at machine shop)

Thanks!

 

[Turbo Archie]

Stock rockers?

 

[MarkJamesGN22]

Yes stock rockers

Stock rockers?

 

[MarkJamesGN22]

Yes Stock rockers

 

[1KWIKSIX]

I set my old school Lunati Voo Doo 210-205 Flat Tappet cam with GM Lifers at 0.050” preload.
Cometic HG’s., stock rocker arms, Elgin 110# valve springs , TA Perf HD Rocker Shafts with (6) rocker shaft saddle supports & TA Performance Rocker Shaft Stud Mount Kit.
Had to order custom push rods in order to set them up.
Be sure to use a push rod checker to determine the correct length since you’ve changed HG’s