Need heads for ASA cam
08-20-2007, 06:09 PM
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I also have the ASA, and with that cam, looking at flow #'s past .525 lift wont do you any good. You're going to need a set of heads with good mid-lift #'s. All of the heads mentioned are good heads, but these (CLICK HERE) are the ones that are meant to go with that cam. The only problem I see with these is you might need to check ptv clearance since I see you have the quick lift rockers.
08-20-2007, 10:33 PM
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Originally Posted by JBIRD02
I also have the ASA, and with that cam, looking at flow #'s past .525 lift wont do you any good. You're going to need a set of heads with good mid-lift #'s. All of the heads mentioned are good heads, but these (CLICK HERE) are the ones that are meant to go with that cam. The only problem I see with these is you might need to check ptv clearance since I see you have the quick lift rockers.
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08-21-2007, 08:57 AM
#9
Originally Posted by JBIRD02
I also have the ASA, and with that cam, looking at flow #'s past .525 lift wont do you any good. You're going to need a set of heads with good mid-lift #'s. All of the heads mentioned are good heads, but these (CLICK HERE) are the ones that are meant to go with that cam. The only problem I see with these is you might need to check ptv clearance since I see you have the quick lift rockers.
08-21-2007, 09:44 AM
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Originally Posted by SSsuperdave
few questions about those heads. What will the comp ratio be and will it be pump gas friendly? Also, with milled heads, how do you get the intake to seat properly. I see those heads are suited for the cam, but I'm afraid it won't be drivable on a street car.
Originally Posted by jmm98LS1
Holy crap, the problem I see with those is $1k PER HEAD!! A couple hundred bucks more & you're into some AFR 205's.......
To be honest, I havent seen anyone so far that has heads (of any kind) and the ASA cam. I would love to see some #'s from anyone who does!
Last edited by JBIRD02; 08-24-2007 at 03:49 PM.
08-21-2007, 10:30 AM
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I called Patriot and they suggested CNC'd 243's. I'm not sure if they use the same size valves, but if they do I could get a set of bare, CNC'd heads, reuse my valves and springs for $895.00.
08-21-2007, 10:38 AM
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Originally Posted by SSsuperdave
I called Patriot and they suggested CNC'd 243's. I'm not sure if they use the same size valves, but if they do I could get a set of bare, CNC'd heads, reuse my valves and springs for $895.00.
08-21-2007, 11:29 AM
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the patriots have larger valves. honestly, those are your best bet, or the tsp heads with ls6 springs. i think the tsp ones are 900 bucks with the ls6 springs and flow about the same as the patriots
08-21-2007, 11:46 AM
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Originally Posted by jmm98LS1
Holy crap, the problem I see with those is $1k PER HEAD!! A couple hundred bucks more & you're into some AFR 205's.......
I have these heads and still working with a few ppl on cam choices for road racing, dont care about street use.
08-21-2007, 06:30 PM
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Originally Posted by JBIRD02
Well, it depends on the gasket used of course, but its my understanding that with a stock gasket, comp. ratio will be 10.9x or 11.0 (I've heard both from the people I've talked to). As far as the intake goes, I'm not exactly sure. I'm also planning on getting these heads, and will talk to the vendor about it. I also need to talk to some people I know with milled heads to see what they have done.
Yeah, I know they're definately not cheap. They are more than some of the other heads out there, but still cheaper than AFR's, Trick Flow's, etc. It just seems that since these heads are designed for the ASA cam (and its low lift) that it would be the right choice. I may be wrong, theres a lot of really good heads out there that are definately cheaper.
To be honest, I havent seen anyone so far that has heads (of any kind) and the ASA cam. I would love to see some #'s from anyone who does!
Yeah, I know they're definately not cheap. They are more than some of the other heads out there, but still cheaper than AFR's, Trick Flow's, etc. It just seems that since these heads are designed for the ASA cam (and its low lift) that it would be the right choice. I may be wrong, theres a lot of really good heads out there that are definately cheaper.
To be honest, I havent seen anyone so far that has heads (of any kind) and the ASA cam. I would love to see some #'s from anyone who does!
435rwhp 408tq dynojet
08-22-2007, 07:35 PM
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Originally Posted by camaross383
check my sig........
435rwhp 408tq dynojet
435rwhp 408tq dynojet
I figured these heads would be worth about 40rwhp which would put me at 432rwhp, so I guess I was pretty close!
08-23-2007, 09:17 AM
#17
Originally Posted by JBIRD02
I also have the ASA, and with that cam, looking at flow #'s past .525 lift wont do you any good. You're going to need a set of heads with good mid-lift #'s. All of the heads mentioned are good heads, but these (CLICK HERE) are the ones that are meant to go with that cam. The only problem I see with these is you might need to check ptv clearance since I see you have the quick lift rockers.
"GM 88958622 LS6 CNC d Cylinder Heads"
In GMPP part #88958622 with 250cc port volume and 61.9cc combustion chamber.
Don't forget to consider port volume when looking at flow numbers.
Corrected old info.
Last edited by voda1; 08-23-2007 at 09:38 AM.
08-23-2007, 07:32 PM
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Originally Posted by JBIRD02
Sweet! Thanks
I figured these heads would be worth about 40rwhp which would put me at 432rwhp, so I guess I was pretty close!
I figured these heads would be worth about 40rwhp which would put me at 432rwhp, so I guess I was pretty close!
08-24-2007, 02:39 PM
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Originally Posted by camaross383
check my sig........
435rwhp 408tq dynojet
435rwhp 408tq dynojet