jecls10

im about to have the heads off my Ls1 to do a cam swap and head bolts etc.
My cam specs are 240/244 .608/596
im wondering if any one can tell me if i will have piston to valve clearance issues if i up the compression to around 11.5 to 1 which is about .40 thousands difference from stock on my 241 heads.

Burken01

iTrader: (88)

Why such a big cam?

You'll have to measure PTV clearance with that cam and it will tell you how much you can cut off the heads..

It needs to be measured, nobody can guess..

jecls10

yes i understand that, i was just seeing if anybody has done a similar build to give me an idea if its possible with out fly cutting my pistons, and The cam has proven to make power thats why im going with it lol.

jecls10

just got off the phone with vengeance racing and they said there is no room to up compression with out flycutting with this size cam.

question answered, just thought id put this out there for others

Jacob Brown

How did it all turn out? I know it's been 2 years but I'm looking at a very similar cam from them