I was going to go with ls7's but i will need to order new push rods and since mine are pretty much brand new i dont really want to do that... is there any lifters out there that can be used with the 7.400 push rods???

 

LS7's can be used with the 7.4's. They are the stock replacement lifter.

 

i have been reading up on them and everyone is saying the cup is either higher or lower i can remember, so in turn i will either need longer or shorter push rods...

 

what is the rest of your setup? milled heads? cam specs? what rockers? what head gaskets?

 

Torquer v2 232/234 .595.598, ls6 heads not planning on any milling and stock head gaskets

 

stock rockers also lol sorry

 

i have the comp 850 oem style lifters with a 7.4 pushrod and works fine.

 

The 7.4's should be fine with the LS7 lifters. The LS7's are said to be slightly taller than the LS1 lifters, but I don't remember how much. With that cam grind some people will run 7.425" pushrods to compensate for the reduction in the base circle, so the lifters being a bit taller should work out good.

 

^^^^ 5.3 is right on that one. You dont buy lifters to fit your pushrods. Brad new/near new pushrods are worth something. You sell yours to offset the cost of new ones if you need them. I still recommend measuring.

 

Ok cool thanks guys, i will do the ls7's and pick up a push rod length checker

 

For the record, I sold my low mileage pushrods for $70 and went in $110 for some new ones. So $40 bucks to know its done right. Money well spent