LS1 Head Combustion Chamber Size?
12-02-2001 | 03:58 PM
#1
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LS1 Tech Administrator
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From: Victoria, TX
LS1 Head Combustion Chamber Size? I believe the stock LS1 heads are around 67-68cc. This is what they'd need to be to achieve the stock 10.1-1 compression ratio. My stock heads have been milled to bring the chamber size down to 61cc, giving me a compression ratio of 10.90-1.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
12-03-2001 | 12:24 AM
#3
On The Tree
Joined: Nov 2001
Posts: 191
Likes: 1
From: Dallas, TX
LS1Head Combustion Chamber Size ? There was a thread a while back that some said the combustion chamber for LS1 5.7 Heads was around 64 to 65cc.
I had said it was 68cc. Every place I have searched says 67.5 - 68cc. Can someone confirm where they are getting 64 to 65cc?
Here are the links I am looking at:
]http://www.sallee-chevrolet.com/ChevySmallBlockV8s/LS6.html[/URL]
and
http://www.mortec.com/castnum.htm
and
http://www.c5-corvette.com/cylinder_heads.htm
[ December 02, 2001: Message edited by: kewlbrz ]</p>
I had said it was 68cc. Every place I have searched says 67.5 - 68cc. Can someone confirm where they are getting 64 to 65cc?
Here are the links I am looking at:
]http://www.sallee-chevrolet.com/ChevySmallBlockV8s/LS6.html[/URL]
and
http://www.mortec.com/castnum.htm
and
http://www.c5-corvette.com/cylinder_heads.htm
[ December 02, 2001: Message edited by: kewlbrz ]</p>
