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Author
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Topic: How much cam with non-rail roller rockers?
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Stinkynutz
Journeyman Posts: 97
From: Fabulous Las Vegas, Nevada, usa
Registered: Nov 2003
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posted 02-20-2004 06:32 PM
   
Hi,I have a rebuilt 65 289 A code with C6AE heads, these heads are the non-adjustable, non-rail, slotted pushrod hole variety. I have added the non-rail type comp cams roller tip rockers. I have what I believe to be a stock cam. My question is: Can I add a Comp Cam 270H cam and lifter kit (or at least a 268H) to this without creating some geometry problems with this rocker/stud set-up? These studs don't have the shoulders on them, but they're still the press-in type. The Comp cam specs seem to indicate that stock pressure springs will work - so should I not be concerned about the press-in studs or spring pressure? I'd like a little rumpity-rump and not any clankity-clank. Thanks in advance for any words of wisdom.
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Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
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posted 02-20-2004 07:15 PM
No problem with 270 H or S and your heads.
Just make certain you have at least 80-90 lbs of seat pressure to take advantage of the RPM.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,& '04
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Stinkynutz
Journeyman Posts: 97
From: Fabulous Las Vegas, Nevada, usa
Registered: Nov 2003
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posted 02-20-2004 07:23 PM
Thanks again Alex. Also ok with 270 S? Really? I can get away with a solid cam with pressed in studs and a non-adjustable valve train? Now ya got me thinkin'. Any preference between the S and the H cams? I do intend to port the heads and I'm running Hi-Po manifolds with 2-1/4" exhaust - just fyi. I will also probably invest in a stall converter in the future.
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