Just a few questions before I order a CheaTR cam
07-25-2005, 05:30 PM
#1
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Just a few questions before I order a CheaTR cam Hey guys this question is for anyone at Thunder or Patrick G. I'm about to order a CheaTR cam cam but I'm worried about piston to valve clearance. I'm running AFR heads milled down .040(59cc's) and using cometic .040 gaskets. I just want to be 100% sure this cam will clear with adequate clearance for a 6 speed car. Also what's the best method to check clearance once the cam is in? Thanks!
07-25-2005, 05:37 PM
#2
With only 265 degrees of duration at .006" lift on the intake side, you've got nothing to worry about..even with the milled heads and short gasket. The exhaust has much more duration, but since we're talking only a 1.60" valve, I think you'll still have pleny of clearance there too.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-28-2005, 11:24 AM
#5
I'm going through the same thing.... Here was Tony's response...
"No issues with an .040 gasket as long as your heads are less than .010
out of the hole.
You should be fine...."
My setup is
2005 C6
AFR 205s no milling
Cheater cam
.040 gasket
You should be fine....
"No issues with an .040 gasket as long as your heads are less than .010
out of the hole.
You should be fine...."
My setup is
2005 C6
AFR 205s no milling
Cheater cam
.040 gasket
You should be fine....
07-28-2005, 12:49 PM
#7
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heads .010" outta the hold huh? 
Anyway, my buddy has a 62cc head (milled .010") .040" cometic and .007" OTH
Oh yeah, he had over .200" both I and E clearance.
Dave
Anyway, my buddy has a 62cc head (milled .010") .040" cometic and .007" OTH
Oh yeah, he had over .200" both I and E clearance.
Dave
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07-28-2005, 01:06 PM
#8
Originally Posted by Vortech
Why would you install the heads without milling?
Last edited by xstang; 07-28-2005 at 01:12 PM.
07-28-2005, 01:46 PM
#9
Originally Posted by xstang
Well, unmilled I'm about 10.7:1.... My stock chambers are 64.5 and the AFRs are 66... The gasket puts me around 11:1 or a little over... Unmilled heads also have a better resale, flow characteristic. Not to mention gasket gives better quench...