Ls3 vs. 317 heads

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Jan 25, 2011 | 03:26 PM

Tirefire

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From: El Paso, Tx

Ls3 vs. 317 heads

What does everyone here think about these two heads on a 390 block. I'm trying to find out if one head is better than the other for FI. I'm planning on pushing 14 psi on a D-1 and was hoping to get as much power on pump gas without pushing water. Anyone have any experience with the LS3 head since I really don't see to much of it on the FI forums.

Jan 25, 2011 | 04:52 PM

Rickys S/C Z28

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From: MOREHEAD KY

A good buddy on mine has a 5th gen camaro with a cam and LT with A d1 and it made 651RWHP thew a A6.....I wish to god i had a 4 in bore motor just so i could use the LS3 heads

Jan 25, 2011 | 05:11 PM

Tirefire

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Quote:

Originally Posted by Rickys S/C Z28

A good buddy on mine has a 5th gen camaro with a cam and LT with A d1 and it made 651RWHP thew a A6.....I wish to god i had a 4 in bore motor just so i could use the LS3 heads

Thats awesome!!! Does anyone else have good things to say about LS3 heads.. Whats the max power I can get out of the 370, EPP cam and LS3 heads with my D-1. Just curious to know what people have made with this kind of setup..

Jan 25, 2011 | 05:24 PM

BigRich954RR

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From: NJ

if you dont have the heads yet and only looking to do 800 hp and under get the ls3

Jan 25, 2011 | 05:53 PM

rotary1307cc

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^^^ good ballpark

Jan 25, 2011 | 09:35 PM

Tirefire

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Quote:

Originally Posted by BigRich954RR

if you dont have the heads yet and only looking to do 800 hp and under get the ls3

Well I'm looking to get as much RWHP as I can possibly get, but I figured the Ls3 head flows better and would probably give me more gains than the 317's. I spoke to the builder of the block and he advised that the block could go as high as 1000 rwhp but with a bigger hairdryer. Where you thinking of another head, besides the ls3 or 317?