I have a set of lt4 roller rockers will they fit my lt1 heads? and are they any better or worse than the cranes or any other 1.6s out there?

 

If they are off a showroom stock LT4, they were made for a different rocker stud diameter (10mm). LT1s have 3/8 studs as stock. If they are the GMPP LT4 rockers, they will work on the 3/8 studs and are basically the same as a set of Crane 1.6 rockers (they are made by Crane).

 

Thanks shoebox. They are from a stock LT4 and would the little bit of differance from 10mm to 3/8" be that big of a deal?

 

You don't want to use them on a 3/8 stud. It's not made for that.