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Old 09-26-2013, 12:01 AM   #6077
Nightmare2012
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Great read http://www.gmhightechperformance.com...d/viewall.html
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Old 09-26-2013, 01:53 AM   #6078
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Just an idea on how much better the ls7 heads and intake manifold flow over the ls3s almost 500rwhp on a puny futral cam and not touched bottom end(376 ci) http://www.gmhightechperformance.com...y_intake_test/

And also take a look at this build I'm liking how my odds are looking for a mid-high 500hp number is looking my can is slightly more aggressive and I would like to say my heads are a bit better he does have .55 more cr though.http://m.ls1tech.com/forums/showthread.php?t=1430350
Last edited by Nightmare2012; 09-26-2013 at 02:07 AM.
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Old 09-26-2013, 07:07 AM   #6079
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bought 2012 2 ss aug.2011 which I ordered.installed k&n c.a.i. throttle response was unbelievable like I gained 50 hp. Question is would I gain anything by getting ported t b
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Old 09-26-2013, 07:27 AM   #6080
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So what about just porting them? I want to maximize my set up but if the gains are going to be minimal between the two ill save alot of money by having them ported.
Unless you want to maximize your setup and funds are not an issue, then I'd go with some TFS or TSP heads. If not then I'd just do a cam only my friend.

Save the money for some Dr's and axles lol. Those gears with a cam are gonna be murdering your rubber lol.
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Old 09-26-2013, 07:28 AM   #6081
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Jack cobra...umm 50whp? No. Lol.

In previous topics of heads...so I'm not crazy...I was looking at that article...seems like switching the top end to ls7 would be way worth it. Just more $...right? Lol.
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Old 09-26-2013, 07:31 AM   #6082
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bought 2012 2 ss aug.2011 which I ordered.installed k&n c.a.i. throttle response was unbelievable like I gained 50 hp. Question is would I gain anything by getting ported t b
It might feel that way but I doubt it lol. A TB will only yield you better throttle response. If you really want to know what a TRUE 40hp feels like? Get a set of Long tubes and a tune.
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Old 09-26-2013, 07:36 AM   #6083
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Jack cobra...umm 50whp? No. Lol.

In previous topics of heads...so I'm not crazy...I was looking at that article...seems like switching the top end to ls7 would be way worth it. Just more $...right? Lol.
You got it bud!! $$$& king cash lol

TSP's small bore Ls7 heads and you'll also need different pushrods and of course an Ls7 intake. BUT the gains with a good cam and the right compression would be bad AZz.
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Old 09-26-2013, 09:03 AM   #6084
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Jack cobra...umm 50whp? No. Lol.

In previous topics of heads...so I'm not crazy...I was looking at that article...seems like switching the top end to ls7 would be way worth it. Just more $...right? Lol.
Wasn't there issues with the valvetrain on the OE LS7 heads though?
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Old 09-26-2013, 09:15 AM   #6085
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Wasn't there issues with the valvetrain on the OE LS7 heads though?
Yes sir, but those are the OEM Ls7 heads. Those heads won't fit our blocks, you'll need a minimum of 4.125 bore.

Tsp's small bore heads are the ones that will fit our blocks but they don't have any issues.
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Old 09-26-2013, 09:51 AM   #6086
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Unless you want to maximize your setup and funds are not an issue, then I'd go with some TFS or TSP heads. If not then I'd just do a cam only my friend.

Save the money for some Dr's and axles lol. Those gears with a cam are gonna be murdering your rubber lol.
That sounds like a good idea. I am wanting to put 18's on it with some DR's I might just focus on that and a good clutch and possibly axles and see where I'm at before I mess with the heads.
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Old 09-26-2013, 10:21 AM   #6087
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Yes sir, but those are the OEM Ls7 heads. Those heads won't fit our blocks, you'll need a minimum of 4.125 bore.

Tsp's small bore heads are the ones that will fit our blocks but they don't have any issues.
Ok, good to know!
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Old 09-26-2013, 11:33 AM   #6088
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Quote:
Originally Posted by grocerygetter View Post
Jack cobra...umm 50whp? No. Lol.

In previous topics of heads...so I'm not crazy...I was looking at that article...seems like switching the top end to ls7 would be way worth it. Just more $...right? Lol.
Quote:
Originally Posted by litle88 View Post
You got it bud!! $$$& king cash lol

TSP's small bore Ls7 heads and you'll also need different pushrods and of course an Ls7 intake. BUT the gains with a good cam and the right compression would be bad AZz.
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Ok, good to know!
Tsp is tunning a special on some 265cc small bore heads guys just as a heads up they are usually around 3000+ http://www.texas-speed.com/p-3948-pr...ore-heads.aspx
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Old 09-26-2013, 11:35 AM   #6089
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Thanks Oz!
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Old 09-26-2013, 11:42 AM   #6090
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Jack cobra...umm 50whp? No. Lol.

In previous topics of heads...so I'm not crazy...I was looking at that article...seems like switching the top end to ls7 would be way worth it. Just more $...right? Lol.
Hey bro, have you gotten any updates on your car yet?
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