ways to gain P-V clearance?
#1
ways to gain P-V clearance?
Have 382 stroker, MTI built motor. Stage 2R LS1 heads apparently milled .030 when they were built. They have 2.05 and 1.6 valves, 7 degree titanium retainers, locks, manley dual springs, etc. Have X1 cam (230/227 .591/.571 114 lobe, although cam card said it was .609 lift I believe). Car runs fine, no problems. I ordered a larger cam, with a traditional split instead of reverse split since I am running a 200 shot of nitrous.
The cam I am wanting to install is a Speed Inc stroker grind, 242/250 .611/.619 114 lobe.
I was going to upgrade the heads to stage III heads, which would be more porting and bigger valves (2.08 instead of 2.05), but I have gotten mixed signals from people who work at MTI, one said go for it, one said it won't help with stock bore. One person said P-V clearance would be an issue possibly.
What are the ways to help P-V clearance, such as different head gaskets? Any input???
SDB
The cam I am wanting to install is a Speed Inc stroker grind, 242/250 .611/.619 114 lobe.
I was going to upgrade the heads to stage III heads, which would be more porting and bigger valves (2.08 instead of 2.05), but I have gotten mixed signals from people who work at MTI, one said go for it, one said it won't help with stock bore. One person said P-V clearance would be an issue possibly.
What are the ways to help P-V clearance, such as different head gaskets? Any input???
SDB
#3
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The only way is to notch the pistons which should already be done or get a thicker head gasket. I would not spend the money to go from a 2.055 to a 2.08 on a stock bore. Not going to make a big difference. Just to let you know I know someone with almost that same cam and idle sucks. It did pick up some time in the quarter though over the previous cam. You need to clay the pistons either way to confirm the clearance is sufficent.
#7
Checked with Cometic, they make a .074 thick gasket for 3.91 bore LS1...which is .023 thicker than the stock gm gaskets I currently have (.051). I was told by everyone to clay it, which is a pain in the ***. I may just get a slightly smaller cam, but then I still don't know my P-V clearance. May just install cam, turn it by hand, and then pull heads and put on thicker gaskets. Or just leave the ******* thing alone!!!!! frustrated.