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Thread: Question about the LS1
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11-30-2009, 09:20 AM #1
Question about the LS1
Can you put LS6 heads on a LS1? There is some guy here in town that swears up and down that he has this done. I don't know if its possible or not that is why I am posting this.
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11-30-2009, 09:28 AM #2
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11-30-2009, 09:48 AM #3
ls-1, ls-2, ls-6 all compatible parts.
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11-30-2009, 09:39 PM #4
the casting number on the Ls6 head is "243" it will be raised on the front corner of the passengerside head (rear corner of the driverside).
yup bolts up the same, but flows better, has bigger, lighter valves than the Ls1 head
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12-01-2009, 12:57 PM #5
- Join Date
- Oct 2007
- Location
- NC
- Posts
- 635
SOM- 1998 T.A.
Ls6/1 valves are the same 2.00/1.55 size. The LS6 Vettes are the only cars that received the hollow stem valves. The LS1 GTO's did not. The 799 castings on the LS2's are the exact same casting....
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12-01-2009, 12:58 PM #6
- Join Date
- Jun 2009
- Location
- Saint Louis, MO
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- 1,705
Arctic White & Black- '98 WS6 M6 - SWAPTIME!
currently what im doing to mine
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12-09-2009, 12:00 PM #7
As well a nicely ported LS1 head will EASILY outflow a stock LS6 head. Something to think about. You could always uprgrade your stock valvetrain with better Valves, springs and retainers..........all depends on cost differences.
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12-10-2009, 06:30 PM #8
- Join Date
- Sep 2005
- Location
- TEXAS... U mad?
- Posts
- 6,158
Black / Stryker Blue- 2K WS.6/ 2K9 G8GT
the LSx is considered a lineup of compatable engines, built on the GenIII SBC (or LS1) platform. Just about every GM engine from 2001 on will mix and match most bolt on parts...
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