LS2 top to LS3
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
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From: Hudson WI
NCM Sinkhole Donor
LS2 top to LS3
Here is the deal. LS3 heads are better than LS2, so I was thinking of getting a FAST 102 for an LS3 and LS3 heads (OE or Aftermarket, not sure which yet). I have two questions. Will all the LS2 parts bolt up and what cam would you use to go with it.
Race Director
Joined: Mar 2005
Posts: 11,549
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From: Southampton NJ
a lot of people did the LS3 and intake swap, and a cam its cheaper and you can sell your heads, but i havnt seen any good 1/4 mile results, even though the LS3 dynos higher numbers, it seems to produce slower 1/4 mile times once modded
Burning Brakes
Joined: Aug 2008
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From: Oro Valley AZ
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Thread Starter
Race Director
Joined: Aug 2005
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From: Hudson WI
NCM Sinkhole Donor
Pro
Joined: Sep 2006
Posts: 580
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From: Northville MI
Tim, I swapped out the LS2 heads for CNC'd L92/LS3 heads in order to install the LS3 version of the E-Force on my car. There is a compression loss, but that was desireable for the blower install. The L92's flow way better than the LS2's and they're reasonably priced.
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Tim, I swapped out the LS2 heads for CNC'd L92/LS3 heads in order to install the LS3 version of the E-Force on my car. There is a compression loss, but that was desireable for the blower install. The L92's flow way better than the LS2's and they're reasonably priced.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Your timing couldnt be better my friend. Call me if you still have the number and I can sell you my existing LS3 top end. (Im going with the AFR 230 for high boost and the deck surface is better for that). Anyway, my set up consists of L92's(LS3) with a L76 ported intake manifold with stainless one piece valves and comp 921 springs. These parts were 1750 new and I will get the heads cleaned up and a clean-up mill and sell the parts to you for 1150 shipped. They have about 8k miles on them. I even have ARP head bolts if you want them too.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
Last edited by SpinMonster; Sep 19, 2010 at 07:23 AM.
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Your timing couldnt be better my friend. Call me if you still have the number and I can sell you my existing LS3 top end. (Im going with the AFR 230 for high boost and the deck surface is better for that). Anyway, my set up consists of L92's(LS3) with a L76 ported intake manifold with stainless one piece valves and comp 921 springs. These parts were 1750 new and I will get the heads cleaned up and a clean-up mill and sell the parts to you for 1150 shipped. They have about 8k miles on them. I even have ARP head bolts if you want them too.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
My goal is around 500HP. Is that realistic without going crazy?
Thanks!
Last edited by timd38; Sep 19, 2010 at 08:14 AM.
Melting Slicks
Joined: Dec 2008
Posts: 2,296
Likes: 3
Your timing couldnt be better my friend. Call me if you still have the number and I can sell you my existing LS3 top end. (Im going with the AFR 230 for high boost and the deck surface is better for that). Anyway, my set up consists of L92's(LS3) with a L76 ported intake manifold with stainless one piece valves and comp 921 springs. These parts were 1750 new and I will get the heads cleaned up and a clean-up mill and sell the parts to you for 1150 shipped. They have about 8k miles on them. I even have ARP head bolts if you want them too.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unless I already did that.
PM sent
Intermediate
Joined: Sep 2010
Posts: 30
Likes: 0
Your timing couldnt be better my friend. Call me if you still have the number and I can sell you my existing LS3 top end. (Im going with the AFR 230 for high boost and the deck surface is better for that). Anyway, my set up consists of L92's(LS3) with a L76 ported intake manifold with stainless one piece valves and comp 921 springs. These parts were 1750 new and I will get the heads cleaned up and a clean-up mill and sell the parts to you for 1150 shipped. They have about 8k miles on them. I even have ARP head bolts if you want them too.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unles s I already did that.
The heads with a .040" gasket will have 10.7:1 compression just like a stock LS3. I can have them milled further if you want it up near 11.1:1. Just let me know what cam you want to use so I know what the limit will be for milling/clearance.
I will help with your tune for free and also port your TB for free too unles s I already did that.
Instructor
Joined: Dec 2007
Posts: 115
Likes: 0
Ive got a set of Lingenfelter CNC LS3 heads in the classifieds, with the matching FAST 102mm. Id sell the the camshaft too if you want a matching setup (Comp LSR for LS3 heads 219/235 .607/.621 113LSA)
http://forums.corvetteforum.com/c6-p...mm-intake.html
http://forums.corvetteforum.com/c6-p...mm-intake.html
