Best heads for boost?
Best heads for boost? I am running 8 psi on a 383 forged lt1 with stock heads. Would like to upgrade the heads to see more power. Does anybody know any heads that are good with boost? Preferably under $2,000...Is trickflow alright?? What if i port my stock lt1 heads, how will that work with boost?
k thanks..
k thanks..
Keep the heads and upgrade the blower. 
I just went 11.21 at 121 on 5lbs in 1st and 2nd, and 7lbs in 3rd on stock heads.
If you want to upgrade the heads for under $2,000 I recommend Lloyd Elliot to port your stock heads.
I just went 11.21 at 121 on 5lbs in 1st and 2nd, and 7lbs in 3rd on stock heads.
If you want to upgrade the heads for under $2,000 I recommend Lloyd Elliot to port your stock heads.
If the shortblock is setup for the combustion chamber size of stock heads that will cause pretty much all other options to lower compression further, wether this is desirable will depend on what your compression is now.
I would recommend Advanced Induction, they have some boosted cars making sick power with ported stock castings and ported Trickflows.
Heads are the key to power, boost is a measure of how much restriction to air flow there is, basically how much air is NOT getting into the motor. Give it good heads and boost numbers will drop but power will rise.
I would not bother with as cast Trickflows.
I would recommend Advanced Induction, they have some boosted cars making sick power with ported stock castings and ported Trickflows.
Heads are the key to power, boost is a measure of how much restriction to air flow there is, basically how much air is NOT getting into the motor. Give it good heads and boost numbers will drop but power will rise.
I would not bother with as cast Trickflows.
Stick with stock ported heads if your compression ratio is suitable for the level of boost you intend to run. I bought an unassembled short block for my new 383, and it only has -16cc dished pistons, so I am looking at head options with larger chambers to get the CR down.
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From: Davie, FL
Why wouldnt you bother with them? I'm in the process of selling my LE2 package to put a set of stock trickflows on for my turbo setup. I'm doing this because I know they have a thicker deck, more meat for porting, and the 62cc chambers will keep me from having to run a huge dish. I do plan on porting them down the road, but will be running them as cast for a while. I just think it's better money spent now to have the room to grow down the road. Once you port the stockers, you're maxed out as far as heads go. He's going to spend 1400-1700 for ported stock heads, or 1400 for heads that he can make more power later if he chooses.
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I completely understand that, but an AS CAST trickflow will outflow the stockers unported and still make more power, and have more potential.
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Yea but they wont out flow ported stockers! So why buy trick flows if your going to port them? You just spent extra money for minimal gains. Put the extra money elsewhere! You might as well port the stock castings. I had my stock heads reworked by LPE for 900.00, included manely severe duty 2.0 1.6 valves all the port work, also included ported intake! ABA383 is running 11.2 na on proted stockers, the thicker deck is not that big of a deal! If the guy is budget minded then he should have the stockers reworked. If he has unlimited funds to throw at it then he should buy the trickflows, chrome every part, and put stickers all over it(HELL YEA)!
Last edited by kinglt-1; Nov 16, 2007 at 07:29 PM.
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The key to this question is whether or not you want to run more boost. If yes, then go with trickflow because the larger chamber will allow that. If you are going to keep your boost level the same, then ported stockers are your best bet. That is the sense in which trickflows are "better for boost". If you are just changing your heads and nothing else in your setup, then stick with stock.
Nick was running out of the box trickflows on his car was pretty slow for what it was. Hell danny was door to door with him from a roll when he had his procharger setup on it.
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From: Davie, FL
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Joined: Dec 2005
Posts: 132
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From: Davie, FL
Yea but they wont out flow ported stockers! So why buy trick flows if your going to port them? You just spent extra money for minimal gains. Put the extra money elsewhere! You might as well port the stock castings. I had my stock heads reworked by LPE for 900.00, included manely severe duty 2.0 1.6 valves all the port work, also included ported intake! ABA383 is running 11.2 na on proted stockers, the thicker deck is not that big of a deal! If the guy is budget minded then he should have the stockers reworked. If he has unlimited funds to throw at it then he should buy the trickflows, chrome every part, and put stickers all over it(HELL YEA)!
I see your point! I was assuming that he is on a budget with the 2000.00 or less statement. If he wants to go 9's I guess the trick flows would benifit. The ported stockers with about 8psi of boost should make 10 second power all day with a mild cam. If he wants more power than that, trick flows would be a better choice. Also upgrade the blower. I had a p1sc stock head 383 setup and the blower could not keep up. Port your stock heads and upgrade to d1sc and your lookin at over 600whp. This setup will make more power than ported trickflows with the p1sc. obviously ported trickflows and the d1sc upgrade would be the best out of all options, but I dont think you can do this for 2000.00 though.
I'll throw 2 cents in here.Just to give you an example of how well the stockers perform.A.I has a cnc 190 cc head that will run circles around as cast trickflows.Not only on the flowbench but also on the car with 5 cc less runner and smaller valves.
1 more example guy name L.J around here runs mid 9's on stock ported heads.He runs a supercharged 383 somewhere around 20lbs boost full weight car w/ ac and it passes smog.Actually i dont know if he still has the car this was a few years ago.
btw I am not saying trickflows dont have potential.
1 more example guy name L.J around here runs mid 9's on stock ported heads.He runs a supercharged 383 somewhere around 20lbs boost full weight car w/ ac and it passes smog.Actually i dont know if he still has the car this was a few years ago.
btw I am not saying trickflows dont have potential.
