ls2 heads?

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Jan 18, 2009 | 04:48 PM

camaroracer91

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ls2 heads?

would switching my heads to ls2 heads make any more power over the ls1 heads on a bolt on camaro with possibly a cam in the future?

Jan 18, 2009 | 06:04 PM

Unertl42

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From: IA

stock, or were you going to mill them down?

Jan 18, 2009 | 07:41 PM

camaroracer91

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depends on what people are selling, would stock ones make a difference

Jan 27, 2009 | 10:33 PM

GTOFan350

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I've been wondering this myself. My friend just totaled his C5 Vette and I was wondering if his heads and cam would fit my ls1?

Jan 28, 2009 | 12:26 AM

spray_goat

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a stock 243 casting would pick up a few ponies, getting them milled down to 59cc would make a little more but it will limit your cam choices due to ptv issues

Jan 28, 2009 | 02:52 AM

SOMbitch

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About 15rwhp is the number I see tossed about for a a stock valved no mill 243 casting.

Jan 28, 2009 | 09:29 AM

Sales2@Texas-speed

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Quote:

Originally Posted by SOMbitch

About 15rwhp is the number I see tossed about for a a stock valved no mill 243 casting.

That's about right for a stock 243 or 799 casting head. Cam selection will dictate whether or not you should mill the heads, and if so how much to mill.

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Feb 3, 2009 | 09:52 AM

Bad G04t

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I'm planning on putting stock ls6 243 heads on my 04 ls1 gto
I have them down at the machine shop now and they are going to deck them for straightness anyway and i was planning on running cometic .051 gaskets, how much can i get them milled safely for a mild build (LPE gt2-3 cam) without getting into valve clearance issues, I don't want a crazy compression ratio, just a little bump in power since I'm using unported stock heads

would milling just .010 or .005 be worth it? will this effect my pushrod length?