heads?
Thread Starter
Instructor
Joined: Oct 2011
Posts: 138
Likes: 0
heads?
I bought my car already modded, but I know the heads on the car are the 241's. Just upgraded pushrods and springs I believe.
I was wondering what aftermarket performance heads are available for an ls1 that work well with a magic stick 3 cam? And what kind of dyno gains could I expect?
Looking for more bolt on power.
I was wondering what aftermarket performance heads are available for an ls1 that work well with a magic stick 3 cam? And what kind of dyno gains could I expect?
Looking for more bolt on power.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
There are many but here are a few:
TFS
AFR
Patriot (Excellent heads for the money)
GM 243 Heads CNC'D
Edelbrock
Thanks,Matt
TFS
AFR
Patriot (Excellent heads for the money)
GM 243 Heads CNC'D
Edelbrock
Thanks,Matt
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
You could see gains as much as 75+hp depending on what you do and your supporting mods. Should flycut and mill the heads to run as much compression you can get away with. TrickFlow 215s when setup well make a lot of power, but require aftermarket rockers. The stock 241 heads are kind of the dogs of the LS head world. Worked 243 heads (LS6 & LS2)show more promise when ported by someone good like AI or TEA, But are only really worth it if you already have a set to port.
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Intermediate
Joined: Aug 2008
Posts: 42
Likes: 0
From: Houston, Tx
My 01 z with an ms3, stock 243 heads, 1 3/4 lg street lt, unported fast 90 intake/tb, vram made 418/383 sae. Went with a set of tea cnc ported tf 215 heads milled to 60cc. Did the trunion upgrade on the rockers so no aftermarket rockers. It did 448/400 on same dyno. Honestly I was expecting a little more out of it for the money I spent. I would recommend doing some worked on 243s used if you can find. Some say yella terras can add power so maybe if i had done that I would have seen more. That with some 1 7/8, 3 in. exhaust, elec.wp, speed density tune (no maf) and i could be at 470 which aint so bad.
Racer
Joined: Mar 2011
Posts: 380
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From: Beaumont TX
i had tfs 215 cnc's, 1.75in long tubes, fast 90/92, vararam, hs rockers, xpipe and cat back WITH 4:10s and put down 478/425 to the wheels on a mn6 2003 base.
hard to beat the valve angle of the trick flows. makes it easier to not fly cut when you mill depending on the cam size.
hard to beat the valve angle of the trick flows. makes it easier to not fly cut when you mill depending on the cam size.
Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 136
From: SoCal CA
I wouldnt recommend a speed density tune for a street car unless your having a difficult time tuning a maf. A maf is just more efficient. I thought about a speed density tune before but went with a LS7 style maf and a C6Z cai. Flows great and drives awesome for a big cam car on the street.
Last edited by C5Natie; Mar 29, 2012 at 08:32 PM.
Thread Starter
Instructor
Joined: Oct 2011
Posts: 138
Likes: 0
Sounds like ill need somewhere in 215 cncs for my setup. Don't have any 243s to play with, and im pretty sure my heads are probably ported already so im probably need to go with patriot or trick flow to make it worth my while. 20hp ain't work it, 50hp is
Thread Starter
Instructor
Joined: Oct 2011
Posts: 138
Likes: 0
Cheapest is 5.3L heads
then worked ls6 heads
then some 215s I think, each costing more than the previous and having better airflow than the previous
Melting Slicks
Joined: Jun 2005
Posts: 2,396
Likes: 52
From: Sicamous BC
By chance have you seen this link?
Have a look at the average power levels, also how the TEA ported LS6 heads stacks up against the big guys
http://www.hotrod.com/techarticles/e...t/viewall.html
Have a look at the average power levels, also how the TEA ported LS6 heads stacks up against the big guys
http://www.hotrod.com/techarticles/e...t/viewall.html
Thread Starter
Instructor
Joined: Oct 2011
Posts: 138
Likes: 0
Im thinking of doing the 243s now, for budget sake. I can probably get some used ones for $300....how much is getting it cnc,d cost at TEA? Figure cheaper than buying new.
Other questions:
1. Do I need to buy rockers as well to use the 243s?
2. Can I reuse the dual springs in my 241s?
FWIW, john from TSP recommended the 227 heads but at about $2200, plus dual springs and maybe rockers....and it adds way up
Other questions:
1. Do I need to buy rockers as well to use the 243s?
2. Can I reuse the dual springs in my 241s?
FWIW, john from TSP recommended the 227 heads but at about $2200, plus dual springs and maybe rockers....and it adds way up
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
Im thinking of doing the 243s now, for budget sake. I can probably get some used ones for $300....how much is getting it cnc,d cost at TEA? Figure cheaper than buying new.
Other questions:
1. Do I need to buy rockers as well to use the 243s?
2. Can I reuse the dual springs in my 241s?
FWIW, john from TSP recommended the 227 heads but at about $2200, plus dual springs and maybe rockers....and it adds way up
Other questions:
1. Do I need to buy rockers as well to use the 243s?
2. Can I reuse the dual springs in my 241s?
FWIW, john from TSP recommended the 227 heads but at about $2200, plus dual springs and maybe rockers....and it adds way up
