TSP Torquer II - max safe mill on ls6 head???

**1BADDLS1** · 03-07-2007, 06:05 AM

tsp torquer II 232/234 .595/.598 112+0 LSA
Patriot Performance LS6 (243 casting) heads 64.45 chamber cc

what would be the MAX mill with out any flycutting when running a stock MLS gasket (aprox .054")

i've found 1cc on gm ls6 casting is .07 mill and .10 mill... i believe the .07 is more accurate... similarly most people assume 243's are 64 cc... but these slight differences play a big part when worrying about PTV Clearances

im thinking between 60-61.5 cc would be max

**SSwt00SS** · 03-07-2007, 11:01 AM

your best bet would be to call Gunnar at Patriot Performance and ask him. you generally want a .100" clearance for PTV. i have the exact same heads as you except for they are the 59cc chambers and i was told that cam will work without flycutting, but to have a clay test done to measure the thickness just to be sure. good luck...

**1BADDLS1** · 03-07-2007, 11:15 AM

you have the "ls6 style" though dont you? if so they're not 243 castings so wouldnt clearance be different?

**SSwt00SS** · 03-07-2007, 11:30 AM

you know i will have to look into that. it says they use "new GM raw 035 castings"., since they are "Ls6 style heads". i definately do not want to tell or give misinformation to you or anyone. after all, i am looking at installing a T.v2 or a TSP 231/237 in the near future myself. i guess it looks like i get to call Patriot back and have a few more questions answered...