Is there enough ptv clearance to run this cam 243 248 .613 .620 @110?
02-27-2011, 09:50 AM
#1
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Is there enough ptv clearance to run this cam 243 248 .613 .620 @110? Can this cam be ran on stock heads with stock pistons or is there not enough piston to valve clearance? Its not much bigger then a trex.
thunder racing trex 242 248 .608 .612 @110
thunder racing custom 243 248 .613 .620 @110+4
thunder racing trex 242 248 .608 .612 @110
thunder racing custom 243 248 .613 .620 @110+4
Last edited by AAK z28; 02-27-2011 at 09:57 AM.
02-27-2011, 03:06 PM
#2
TECH Senior Member
Retard it 4* and degreed properly it might just clear on some engines. Might not be "safe" but it could "clear".
As is on 108 ICL, mill the heads and flycut will yield best results.
As is on 108 ICL, mill the heads and flycut will yield best results.
02-28-2011, 10:16 AM
#3
I'd say it depends on one's definition of "clearing." Never over-rev it, never miss a shift, etc then you might not see the eye-brows on the pistons, but it'll be tight enough clearance that most would agree you should flycut!
Even at the 110º ICL I wouldn't run it without reliefs!
Even at the 110º ICL I wouldn't run it without reliefs!
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
