Too much compression???
Thread Starter
On The Tree
Joined: Mar 2002
Posts: 155
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From: nj
Too much compression??? I am contemplating buying these heads for around $1700. Does anyone know if putting these on a 2001 SS, W/ATI #5 blower will be to much compression????.... I was told these heads are at a 10.69:1 compression ratio. If it is okay does anyone have any comments about this deal??? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
· NEW, LS1 heads (never run)
· CNC porting (CNC cylinder heads)
· Hand polishing (Pat Musi Performance)
· NEW 2.02” REV Intake (Racing Engine Valves) Stainless Steel, high swirl
· NEW 1.575” REV Exhaust (Racing Engine Valves) Stainless Steel, high swirl
· NEW 1.250” Chrome Silicone springs (SLP)
· NEW Chrome Moly retainers (SLP)
· New seals, keepers (GM)
· NEW Bronze Valve Guides (SLP)
· Performance, multi-angle valve job (Pat Musi Performance)
Milled surface (62.5 cc chambers)
· NEW, LS1 heads (never run)
· CNC porting (CNC cylinder heads)
· Hand polishing (Pat Musi Performance)
· NEW 2.02” REV Intake (Racing Engine Valves) Stainless Steel, high swirl
· NEW 1.575” REV Exhaust (Racing Engine Valves) Stainless Steel, high swirl
· NEW 1.250” Chrome Silicone springs (SLP)
· NEW Chrome Moly retainers (SLP)
· New seals, keepers (GM)
· NEW Bronze Valve Guides (SLP)
· Performance, multi-angle valve job (Pat Musi Performance)
Milled surface (62.5 cc chambers)
TECH Addict
Joined: Nov 2001
Posts: 2,207
Likes: 0
From: College Station, Tx
Re: Too much compression??? If you are buying a new set of heads for a SC vehicle go with the 6.0l heads. The drop in compression will give you an added safety margin/allow for more boost (your choice) and they are a better head than the stock LS1 head generally.
I would probably suggest going with a known porter of CNC heads though.
I would probably suggest going with a known porter of CNC heads though.
Thread Starter
On The Tree
Joined: Mar 2002
Posts: 155
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From: nj
Re: Too much compression??? Thanks for your response. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" />
