onebadbowtie86

iTrader: (13)

Currently I have a stock ls2 out of a gto swapped into a g body. I just did a cold air intake, long tubes, tsp ms3 cam with prc .650 springs and tune. I'm looking at getting a set of ls3 heads and intake eventually and wondering if there will be clearance issues with this cam?

I know this cam isn't a custom grind, or optimized for an ls3 but I cant see why it wouldn't work if it doesn't have ptv clearance issues? Would fly cutting be necessary if the heads were milled to bump the compression?

I tried searching google for answers on multiple forums but haven't really ran across anything.

would the ls3 heads and stock ls3 intake offer more of a hp increase then just putting a fast 102 on top of my current, stock ls2 243 heads? It seems like you can get ls3 heads and intake for the price of a fast intake.

Thanks!

onebadbowtie86

iTrader: (13)

Sorry, meant to put this in the internal section...

COSPEED2

iTrader: (7)

Will not fit without flycutting.

onebadbowtie86

iTrader: (13)

Even with out milling the heads?

COSPEED2

iTrader: (7)

correct

onebadbowtie86

iTrader: (13)

Have you done this before or seen it done with this cam?

COSPEED2

iTrader: (7)

i have seen smaller cams not fit. 231 is about tops on the intake and 239-240 on exhaust. the lsa wont matter a whole lot on that as far as trying to make it fit either.
you dont need a larger cam like that to make power with those heads.

COSPEED2

iTrader: (7)

If you want to check bolt the heads on without gaskets and roll it around a few times. An even better way would be to make a solid lifter or use one and try it loke that and use machinist clay. play dough wont work. some people use tootsie rolls but that is a bit redneck. then measure how much the clay is compressed...or more likely cut in half...

onebadbowtie86

iTrader: (13)

Ok thanks for the info. looks like I will either stick with doing ported cathedrals or have to swap the cam with the ls3 top end.

COSPEED2

iTrader: (7)

i would flycut and run it if you like it that much. it really is not that difficult.

onebadbowtie86

iTrader: (13)

Do you just need to flycut for the intake valve? I'll keep that as an idea. I will definitely be checking ptv clearance and I guess I could fly cut as well.

COSPEED2

iTrader: (7)

both would be best. once you have the head set up to cut you can do it very quickly