Free LS6 heads from an '04 GTO...Worth the swap?
10-11-2005, 12:46 PM
#21
Originally Posted by kpowr82
You people sure know how to burst a guys bubble 
Yeah, they're the good old 241 castings. That sucks, guess I'll have to wait to have them ported.
Yeah, they're the good old 241 castings. That sucks, guess I'll have to wait to have them ported.
10-11-2005, 12:54 PM
#22
I don't see why he couldn't pick up at least 10-15 rwhp. Think about it. You are adding a much better flow design plus the extra half point of compression. You'd gain more than 5rwhp just by the added compression. Think about this.
Z06 w/bolt on's
LS1 with 2002 z06 cam and bolt-ons
I didn't want to search all day, so they aren't equal graphs by any means. The 2002 z06 cam was bigger. Even then there is a 10rwhp difference. Anyhow I can garuntee you will pick up at least 10rwhp with the z06 heads.
Z06 w/bolt on's
LS1 with 2002 z06 cam and bolt-ons
I didn't want to search all day, so they aren't equal graphs by any means. The 2002 z06 cam was bigger. Even then there is a 10rwhp difference. Anyhow I can garuntee you will pick up at least 10rwhp with the z06 heads.
10-11-2005, 01:19 PM
#23
Id say anywhere from 10 to 20 RWHP depending on the cam. However, I doubt that he really has ls6 heads. The 2004 GTO came with an LS1 motor, which would have 241 casting heads. The 2005 GTO came with the LS2 and the 243 casting heads. The original poster stated this was an 04 goat.
10-11-2005, 10:54 PM
#24
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Originally Posted by 777
I don't see why he couldn't pick up at least 10-15 rwhp. Think about it. You are adding a much better flow design plus the extra half point of compression. You'd gain more than 5rwhp just by the added compression. Think about this.
Z06 w/bolt on's
LS1 with 2002 z06 cam and bolt-ons
I didn't want to search all day, so they aren't equal graphs by any means. The 2002 z06 cam was bigger. Even then there is a 10rwhp difference. Anyhow I can garuntee you will pick up at least 10rwhp with the z06 heads.
Z06 w/bolt on's
LS1 with 2002 z06 cam and bolt-ons
I didn't want to search all day, so they aren't equal graphs by any means. The 2002 z06 cam was bigger. Even then there is a 10rwhp difference. Anyhow I can garuntee you will pick up at least 10rwhp with the z06 heads.
Originally Posted by GuitsBoy
Id say anywhere from 10 to 20 RWHP depending on the cam. However, I doubt that he really has ls6 heads. The 2004 GTO came with an LS1 motor, which would have 241 casting heads. The 2005 GTO came with the LS2 and the 243 casting heads. The original poster stated this was an 04 goat.
Today 01:54 PM
Today 01:54 PM
Originally Posted by kpowr82
You people sure know how to burst a guys bubble
Yeah, they're the good old 241 castings. That sucks, guess I'll have to wait to have them ported.
Yeah, they're the good old 241 castings. That sucks, guess I'll have to wait to have them ported.
10-14-2005, 02:14 PM
#27
Originally Posted by danf1000
port those heads before installation, short side radius and valve boss
If youve got information saying to do otherwise, please share the wealth!
Sorry for threadjacking...
10-14-2005, 02:30 PM
#29
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Friend of mine did the LS6 head/cam on his 2004 GTO.
http://www.ls1gto.com/forums/showthr...&highlight=ls6
http://www.ls1gto.com/forums/showthr...&highlight=ls6
