(Another) Cam Selection .452/.465 vs. .503/.510
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Posts: 462
From: Hamilton, NJ
(Another) Cam Selection .452/.465 vs. .503/.510
CRANE CRN-104224
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,000-5,500 RPM
Duration at 050 inch Lift: 214 int./220 exh.
Advertised Duration: 270 int./276 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.452 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: Yes
Grind Number: 2032
COMP CCA-08-503-8 (XR276HR-12)
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,800-5,800 RPM
Duration at 050 inch Lift: 224 int./230 exh.
Advertised Duration: 276 int./281 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.503 int./0.510 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: CS XR276HR-12
The cam will be going into a speed density TPI with Brodix IK200 heads. Stock converter. I will port as much as I can out of that plenum, but I will be going LT1 or HSR in the near future, so I am fully aware that the TPI will choke the crap out of my head/cam combo. So just think in terms as if I had the intake. Also, the comp cam has a higher RPM range, so I think the intake would suit that RPM better.
Originally I was going to go for the Crane computer cam, but I think it is a little wimpy. This is my daily driver, but I want something with a little more bite. Will the Crane cam be enough, or should I go to the .500+ lift comp cam? Also, I'll be getting a Prom burned with it so computer compatibility does not matter.
If you have any other input in this matter as to another cam that would better suit me, PLEASE let me know. Just trying to get the best parts to fit my application.
_Clark
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,000-5,500 RPM
Duration at 050 inch Lift: 214 int./220 exh.
Advertised Duration: 270 int./276 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.452 int./0.465 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: Yes
Grind Number: 2032
COMP CCA-08-503-8 (XR276HR-12)
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,800-5,800 RPM
Duration at 050 inch Lift: 224 int./230 exh.
Advertised Duration: 276 int./281 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.503 int./0.510 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: CS XR276HR-12
The cam will be going into a speed density TPI with Brodix IK200 heads. Stock converter. I will port as much as I can out of that plenum, but I will be going LT1 or HSR in the near future, so I am fully aware that the TPI will choke the crap out of my head/cam combo. So just think in terms as if I had the intake. Also, the comp cam has a higher RPM range, so I think the intake would suit that RPM better.
Originally I was going to go for the Crane computer cam, but I think it is a little wimpy. This is my daily driver, but I want something with a little more bite. Will the Crane cam be enough, or should I go to the .500+ lift comp cam? Also, I'll be getting a Prom burned with it so computer compatibility does not matter.
If you have any other input in this matter as to another cam that would better suit me, PLEASE let me know. Just trying to get the best parts to fit my application.
_Clark
Last edited by LesPaulGoth; Jun 26, 2006 at 06:46 PM.
Registered User
Joined: Feb 2003
Posts: 1,601
From: Virginia
Re: (Another) Cam Selection .452/.465 vs. .503/.510
Im kinda with you,I'm thinkin the Crane cam is on the wimpy side. I would personally go for that Comp cam. Same basic operating range and will give more power which is what we all want,and be better matched to that set of heads.
Another cam you might want to check out is the XE-270-HR from Comp. Its a 218/224 @ .050 and .495/.502 lift on a 110. I had that cam in my 87 IROC and it pulled pretty good to about 5500 w/ a Performer RPM intake and a 3.73 gear. This would be a very good daily driver cam,but there again,your not using up the advantage of the heads.
http://www.compcams.com/Technical/Dy...0HR-10_001.asp
Just my 2 cents.
Another cam you might want to check out is the XE-270-HR from Comp. Its a 218/224 @ .050 and .495/.502 lift on a 110. I had that cam in my 87 IROC and it pulled pretty good to about 5500 w/ a Performer RPM intake and a 3.73 gear. This would be a very good daily driver cam,but there again,your not using up the advantage of the heads.
http://www.compcams.com/Technical/Dy...0HR-10_001.asp
Just my 2 cents.
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