I have a 6.0 LQ4 with MS4 cam and ls6 heads. i have about 54 thousanths is that enough p to v clearance?

 

no, you need about .100 int/ .080 exh atleast.

is that with gasket compressed? if no, the gasket is .053 compressed

 

no, I think you need about twice that

 

I think it's .080 int and .100 exh

 

.080 intake-.100 exh these are the bare minimum with the clearance being checked properly!!!

 

this was with a .40 gasket my i have L92 gaskets which are thicker

 

im hoping it gives me enough clearance

 

ahhh toooooo much lift damnit,....is it even worth trying to run it?

 

where did youcome up with that? i thought it was around .077

 

that is a very tight fit but it has been done before, ive clayed a few setups with cams around that size and the ptv was about the same, im not saying its safe or anything but these cars with ptv that tight are still running if that helps you at all, my last set up had .065 intake and .085 exhaust and i shifted at 6,700 rpms i pulled the heads off after many miles and there was no ptv issues at all

 

thanks for all the help guys i appreciate it ill post when i have it running and hopefully it doesnt blow up!!!!

 

you should be fine!

 

It will run, as long as you valvetrain is under control, a bit of valvefloat or a boken outer spring and Sionara to the motor.
the clearances you have are race clearances and not daily driver

 

Don't miss a gear.

 

I believe you have to flycut with that cam. A friend of mine installed that cam 1 tooth off on the gearset and blew his motor. Not a lot of room for error with that cam.

 

You don't have to flycut with stock heads & stock gaskets. You just have to install it correctly.