Who has C5R heads on their car?
09-11-2003, 06:38 PM
#1
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Who has C5R heads on their car? And what classes or organizations are you/ will you be racing in?
Also, if you know it, did you heads flow over 400 cfm, or come close to that number?
Also, if you know it, did you heads flow over 400 cfm, or come close to that number?
09-11-2003, 06:46 PM
#2
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Re: Who has C5R heads on their car? It's a secret. 
LS1Tech series, Thunder Shootout, anything else that turns up that I will fit into.
You should also ask "at what lift."
LS1Tech series, Thunder Shootout, anything else that turns up that I will fit into.
You should also ask "at what lift."
09-11-2003, 11:21 PM
#3
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Re: Who has C5R heads on their car? A Nascar engine shop here in NC was said to see what they could do with the c5r head and did get like 440 cfm at .850-.900 lift. A leftover untouched set was purchased by a good friend from said shop for pocket change the lucky biatch.Lets say less than 600 bucks for the pair.They were going to use them for some class at the 24 hours of daytona but the heads were deemed illegal so they actually destroyed them.The potential of that head is awesome.
09-12-2003, 05:12 PM
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Re: Who has C5R heads on their car? Hey PSJ,
We have the 090 series heads on our car. Unfortunately, the first shop that had our heads did not provide the flow numbers to us (it’s a long story and I’ll spare you the stupid and costly details)
. I then made the mistake of sending the heads to Hogan and he port matched his intake to the heads. So now we're stuck with the first shop’s hack-job on the intake ports. Anyways, we sent the engine to A.R.E and they were able to re-port the exhaust side to flow 340ish at .700. Being it’s a blower car, we should be fine.
We are going to race NHRA Division 7 Super Gas and see where it takes us.
How close are you with your car?
Thanks,
Tim
We have the 090 series heads on our car. Unfortunately, the first shop that had our heads did not provide the flow numbers to us (it’s a long story and I’ll spare you the stupid and costly details)
. I then made the mistake of sending the heads to Hogan and he port matched his intake to the heads. So now we're stuck with the first shop’s hack-job on the intake ports. Anyways, we sent the engine to A.R.E and they were able to re-port the exhaust side to flow 340ish at .700. Being it’s a blower car, we should be fine.We are going to race NHRA Division 7 Super Gas and see where it takes us.
How close are you with your car?
Thanks,
Tim
09-12-2003, 05:54 PM
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Re: Who has C5R heads on their car?
Anyways, we sent the engine to A.R.E and they were able to re-port the exhaust side to flow 340ish at .700. Being it’s a blower car, we should be fine.
09-13-2003, 08:12 AM
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Re: Who has C5R heads on their car?
Only the most serious Pro Stock Type Big Block heads achieve these kind of numbers, and thats at a higher lift then 0.700.
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09-13-2003, 10:18 AM
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Re: Who has C5R heads on their car? LOL, OK Bobby, I'll rephrase that just for you.
Only the most serious heads that ever actually run on an engine achieve these kind of numbers, and thats at a higher lift then 0.700."
Just jabbing at ya bud.
Besides Bob, you and I both know them things are nothing but a BB head in an SB head. :p What were the dimensions of them intake ports again. 
Only the most serious heads that ever actually run on an engine achieve these kind of numbers, and thats at a higher lift then 0.700."
Just jabbing at ya bud.
Besides Bob, you and I both know them things are nothing but a BB head in an SB head. :p What were the dimensions of them intake ports again.
09-13-2003, 10:55 AM
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Re: Who has C5R heads on their car? Ouch! 
All I will say is take aim while you can
Ports are ridiculous! 2.5" tall x 1.5" wide. How big are stock LT1 intake ports??
Sorry to hijack your thread PSJ. I'll hush now.
All I will say is take aim while you can Ports are ridiculous! 2.5" tall x 1.5" wide. How big are stock LT1 intake ports??
Sorry to hijack your thread PSJ. I'll hush now.
