C5R heads CCs?
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,823
Likes: 1
From: If you can see the car behind you, your not going fast enough
Re: C5R heads CCs? (marco383)
They are really that low?
Now i am wonder how lingenfelter runs those heads w/ 427 CID and twin turbos @ 24 lbs.?
Crazy how they do it...
DOes anyone have an exact #? Thanks
Now i am wonder how lingenfelter runs those heads w/ 427 CID and twin turbos @ 24 lbs.?
Crazy how they do it...
DOes anyone have an exact #? Thanks
Burning Brakes
Joined: Feb 2002
Posts: 1,154
Likes: 25
From: Jasper GA
Re: C5R heads CCs? (Gene@FredBeans)
I don't believe that LPE runs C5R heads on their 427TT. A lot of people are using the C5R block (I am), but IMHO, the heads present more problems than can be justified by the breathing improvements they offer.
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Re: C5R heads CCs? (Major Spray)
The 'standard' C5R head uses 38cc chambers. The 'high performance' version uses 30cc chambers.
I have heard that the 38cc version can have the chambers expanded out to 44cc. Using the biggest dish piston of -38cc with a 427 would yeild a static compression ratio of 9.8:1. You could most likely run about 10 psi of boost on 104 unleaded.
Keith
I have heard that the 38cc version can have the chambers expanded out to 44cc. Using the biggest dish piston of -38cc with a 427 would yeild a static compression ratio of 9.8:1. You could most likely run about 10 psi of boost on 104 unleaded.
Keith
Drifting
Joined: Feb 2003
Posts: 1,398
Likes: 0
From: The best state in the US TX
Re: C5R heads CCs? (kromberg)
The 'standard' C5R head uses 38cc chambers. The 'high performance' version uses 30cc chambers.
I have heard that the 38cc version can have the chambers expanded out to 44cc. Using the biggest dish piston of -38cc with a 427 would yeild a static compression ratio of 9.8:1. You could most likely run about 10 psi of boost on 104 unleaded.
Keith
I have heard that the 38cc version can have the chambers expanded out to 44cc. Using the biggest dish piston of -38cc with a 427 would yeild a static compression ratio of 9.8:1. You could most likely run about 10 psi of boost on 104 unleaded.
Keith
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