Port heads or get bigger cam?
10-11-2009, 07:37 PM
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Port heads or get bigger cam? I was wondering which would give more horsepower and loose the least drivability. Porting the LS6 stock heads for around $5-600 or getting a bigger cam. Would go from the cam in sig to a 228/230 .573/.578 112 or 113 LSA (whichever would be better for a 6200 shiftpoint) custom grind or similar. BTW, I don't know how much a good port job would actually cost, Thanks.
Please read post #15, I didn't want to start a new thread.
Please read post #15, I didn't want to start a new thread.
Last edited by camz28arro; 10-15-2009 at 03:42 PM.
10-11-2009, 10:51 PM
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the heads are already off ... so do the heads 
a cam can be changed later without the heads removal ... maybe even a used one from a member or a sponsor in the classified ^_^
a cam can be changed later without the heads removal ... maybe even a used one from a member or a sponsor in the classified ^_^
10-11-2009, 10:55 PM
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that cam upgrade would knock of 1-2 tenths, heads i would hope would be a solid 2...not to mention drivability shouldnt really be sacrificed with a port job. better fuel mileage with head porting over the cam upgrade would most likely be the case...so more power, better drivability, fuel economy, and way less labor/headache.
10-11-2009, 11:22 PM
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I was wondering which would give more horsepower and loose the least drivability. Porting the LS6 stock heads for around $5-600 or getting a bigger cam. Would go from the cam in sig to a 228/230 .573/.578 112 or 113 LSA (whichever would be better for a 6200 shiftpoint) custom grind or similar. BTW, I don't know how much a good port job would actually cost, Thanks.
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10-12-2009, 06:44 AM
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that cam upgrade would knock of 1-2 tenths, heads i would hope would be a solid 2...not to mention drivability shouldnt really be sacrificed with a port job. better fuel mileage with head porting over the cam upgrade would most likely be the case...so more power, better drivability, fuel economy, and way less labor/headache.
10-12-2009, 04:39 PM
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What kind of power would Patriot stage 1 heads make over the stocker 243's, I think the stock 243s are 260cfm at .500 lift and the patriots are 290-300. I would think about selling my brand new LS6 243s assembled in the classified section for about $650 if I should go with the Patriot heads.
Also with the 243s and the .040 gasket would my hardened comp 7.400 pushrods be fine. Thanks.
Also with the 243s and the .040 gasket would my hardened comp 7.400 pushrods be fine. Thanks.
10-14-2009, 03:56 PM
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also...when it comes to doing heads,...in most cases if you pick up 10 horse your only gonna get about 7ft pounds,....thats why i say 20+ bc the torque is not gonna be right there with hp gains.
if im not mistaken, hes already got 243 heads right? stock 243's vs. ported 243's.....i doubt your gonna pick up 30whp.....which is what you should need to drop 3 tenths....roughly
once you get past the bolt ons....every tenth u wanna drop your gonna have to earn, its not as easy once the bolt ons are done...or shall i refraze.....its not so cheap once you get passed the bolt ons.
10-15-2009, 03:05 PM
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Would Patriot CNC'd 243's be too much for a TR224? I'm about to sell my stock 243's and would like to know. I'll be bringing the engine up to 6200rpm if that would matter. Thanks.
10-15-2009, 04:21 PM
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10-18-2009, 01:20 PM
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i have a 222 cam with ported patriots...i make 402 through an auto with a stall, just regular ls6 intake and what i consider a somewhat constrictive catback.....so no those heads arent too much for a 224...with that combination your car will run elevens with full bolt ons.
