.055 milled heads and .550 lift cam - anyone?
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.055 milled heads and .550 lift cam - anyone?
My new LS6 heads are milled .055 with stock 2002 valves with Lunati REV double springs. I'm am considering the purchase of the following cam:
230/224 .560 lift - 114 LSA
Question: What thickness head gaskets and what length pushrods do I need?
...Will I likely have piston clearance problems with a stock head gasket with a compressed thickness of .060?
I believe I can special order Cometic head gaskets from .087 to 1.0 thickness or more if necessary.
Besides a loss of CR, what is the downside to having "thick" head gaskets?
230/224 .560 lift - 114 LSA
Question: What thickness head gaskets and what length pushrods do I need?
...Will I likely have piston clearance problems with a stock head gasket with a compressed thickness of .060?
I believe I can special order Cometic head gaskets from .087 to 1.0 thickness or more if necessary.
Besides a loss of CR, what is the downside to having "thick" head gaskets?
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Re: .055 milled heads and .550 lift cam - anyone?
I am running the TR230/224 111lsa cam with GTP stage 2 truck heads milled .050" while my solid roller setup is being fixed. I am using the GM '02 MLS gaskets (.060"), but my pistons do have valvereliefs. I had .090" clearance on the intake side and a mile on the exhaust.
Without valvereliefs, I do not see that working.
It is not a good idea to gain piston to valve clearance or reduce compression with increasing the gasket size quite a bit. Your "quench" increases your motor will become very prone to detonation,etc.
Jason
Without valvereliefs, I do not see that working.
It is not a good idea to gain piston to valve clearance or reduce compression with increasing the gasket size quite a bit. Your "quench" increases your motor will become very prone to detonation,etc.
Jason
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Re: .055 milled heads and .550 lift cam - anyone?
With that cam it sounds like it will be close, being that you have stock sized valves. Be prepared to fly cut the pistons, or go with a lower lift cam.
Did the cam vendor have feedback for you?
<small>[ March 19, 2003, 02:26 PM: Message edited by: Zeta ]</small>
Did the cam vendor have feedback for you?
<small>[ March 19, 2003, 02:26 PM: Message edited by: Zeta ]</small>