Jakson

iTrader: (50)

I bought a cam from a member on board and was wondering if my PTV clearance will be fine. Its a 235/240 .646"/.609" on 112 lsa. Will I be ok, or should I still try to measure it? I was thinking of just doing the clay method if I do.

Also was wondering about lifters. Will the stockers be fine(125k)? Or should I get new ones, and which would be the best?

Thanks for any help,

Jakson

BOWTIE

Stock heads, stock gaskets, SHOULD be OK, but it is a good idea to measure. Do you know how much advance it has ground in?

PREDATOR-Z

definately new lifters. If I were you I would do a compression /leakdown test as well.

Jakson

iTrader: (50)

Not sure on the advance. I will look when the cam arrives, or give comp a call and see what they say. I will be using Patriot stage 2 67cc heads, and stock gaskets. Which lifters would be the best, Ive read some stuff about the GM "Caddy" lifters, would they be good?

PREDATOR-Z

If you have aftermarket heads they most likely have bigger valves or/and milled so PTV will be an issue.
Bottom line you HAVE to measure.

ls1pwrdss

iTrader: (74)

with those heads your going to have to fly cut your pistons for that cam. about the only head you could probaly use is a set of 243 ported and polished
with stock size valves even with that you will br close on the ptv clearance

Jakson

iTrader: (50)

The valves on the heads are only 2.02 and 1.57, and they are unmilled. Either way, I suppose I should check it. Would the clay method work fine?

PREDATOR-Z

67cc unmilled are either perimeter LS1 heads or center bolt LS1 heads, nevertheless with those valves you will HAVE to measure for that cam. No one here can give a 100% answer.

Jakson

iTrader: (50)

Alright, will do. They are perimeter bolt heads. Will LS7 lifters work good for my setup?

PREDATOR-Z

Yeap ..