A buddy of mine has some ported 853s that have been milled 0.18 and a comp cam 608/612 240/144 on a 112. It has ls7 lifters and Mahle flat tops with 4cc valve reliefs. It also has stock thickness head gaskets. What length pushrod should he need?

 

T T T

 

I'll say what every other person on here would say. Get a PR length checker.

 

I dont have one and trying to find someone with a similiar setup.

 

If I was to guess I would say 7.4
You have milled heads + stock size PRs are 7.380 if remember correctly + the base circle of the aftermarket cam would be smaller than stock size.

 

Ok Thanks!

 

I had to go with 7.5 with my new heads. If you have valvetrain noise pay the 19bucks and buy a checker!

 

What heads do you have?

 

Based on the PR's I would guess TFS heads. Just a guess though...

 

If you are refering to me my heads are Patriot LS6 Stage II 59cc