So i have stock short block with a tqv2 cam and i already have the heads i want waiting to get put on the motor when it gets out of the machine shop. My only ???? is what is the biggest cam i can put in my 346 with the PRC 2.5 5.3 Heads?? I have been talking to texas speed trying to figure out. Trying to save the time of putting the cam in and it being to much. also these heads have not had any extra milling

 

you could fit a MS3 under those heads with stock style head gasket but always check, never take someones word for it. it is your motor not theirs

 

oh yea and i will check no matter what just wanted to see how big i could go

 

No a MS4 will not fit under those heads because of the 2.02/1.57 valves. A MS3 will clear with a GM MLS gasket.

An MS4 will (SHOULD) clear any LS1/LS6 head with no milling and stock size valves.

Edit: See bold.

 

sry, that is what i meant. the MS3 will fit/ not the MS4. pushed the wrong button. thanks

 

well i have been looking into the tsunami and ms3 i guess all i have to do now is pick