TR224 cam + prc 5.3 2.5 heads ... what cc?
01-21-2007, 11:51 PM
#1
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TR224 cam + prc 5.3 2.5 heads ... what cc? I was told by someone I would want to mill to 58cc and put on with a .040" gasket. The ones I am getting are 63cc right now. Does this sound like a good plan of action? What kind of horsepower difference will there be, and how much does it generally cost for milling?
01-22-2007, 01:30 PM
#5
Milling should only cost around $100, but it's money well spent. a 58-59cc chamber is what you want to run if you have valve reliefs. If running stock pistons with no reliefs, a 61cc chamber will still get your compression in the 11.30:1+ range with a .040" gasket.
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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.
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.
01-22-2007, 01:41 PM
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also, do I need to do anything else other than have the heads milled, or is that it? I just want to make absolute certain I know what I am getting into 
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01-22-2007, 07:41 PM
#8
You dont have valve reliefs from the factory. SO unless someone has had those heads off your current motor you dont have them. Honeslty there is no need to mill those heads. They'll peform just fine the way they are. I ran a tr224 112 lsa with PRC 2.5's and its a kick *** combo for street car. Now you might want to have them checked and maybe surfaced to clean up anything but you dont need to "mill" per say. Just have them checked and go with an OEM thick gasket and all will be good.
01-22-2007, 09:25 PM
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My setup is as follows Patriot 5.3L heads 63cc, stock 0.052 MLS headgasket, stock shortblock, TR224 112LSA degreed in at 108ICL results in 10.86-1 SCR and 8.64-1 DCR. Strong setup since 2003 with no problems.
