Question. I have a 1991 1pc rms 2 bolt main block that can accept hydraulic roller lifters. Can I use GM PN# 17120735 roller lifters in this block with a small base circle cam(custom XFI280)?
Thanks

 

do you have the (for lack of a better word) spider thing and the retainers that go with it?

i tried finding those lifters on gmpp. i couldnt. are the connected to eachother like other aftermarket roller lifters?

 

The "small base circle" part concerns me. They aren't extended tops, so they may sink too far into the anti-rotation guides.

 

They are the old GMPP " 2nd design " LT1 lifters everybody was using

http://www.summitracing.com/parts/NAL-17120735/

Roller lifter of choice now is the LSX Lifter
$130 a set / good for 7K

http://www.summitracing.com/parts/NAL-12499225/

 

Aren't the new ls rollers shorter than the "old style" and may require a different length push rod. I already have this motor running and I think I have a bad lifter, just want to replace it. This engine is bored and stroked,5.7 h-beam rod with 3.75 stroke. SBC cam was recommended by comp for clearance.