766 Horsepower! - New Dart LS3 Head and Cam Motion LLR!
#101
We have made 680-690 on an engine dyno with our stg 1 ls3 heads and stock ls3 botom end. it made 566 to the rear tire with a 6 speed. So, that's about 1.79 hp per CI. Make it 403ci and it could possibly make 725hp. That was with a cam motion LLR and the Stock LS3 intake.
#103
I prefer LS7 heads over LS3 at any bore over 4.060 or bigger. The LS7 is more efficient and has a better approach to the cylinder. that being said for the money it's hard to beat a good LS3 for a lot of applications.
#104
10 Second Club
iTrader: (11)
We have made 680-690 on an engine dyno with our stg 1 ls3 heads and stock ls3 botom end. it made 566 to the rear tire with a 6 speed. So, that's about 1.79 hp per CI. Make it 403ci and it could possibly make 725hp. That was with a cam motion LLR and the Stock LS3 intake.
#106
10 Second Club
iTrader: (11)
Ha have a buddy is a tech works at a GM dealer. Believe this engine came out of a escalade or denaili Customer complaint was low oil pressure he said several guys drove it with no complaints. But You spend that kinda money on a vehicle they just throw a new engine in it to make you happy. Sure he pays a cheap core charge and has several engines. I traded my dart 205 heads for it. So rebuild,stroke,solid roller,compression,heads and single plane with bunch o nitrous. Still going to run my setup I have now. This is just a project getting started.
#107
TECH Senior Member
iTrader: (27)
Ha have a buddy is a tech works at a GM dealer. Believe this engine came out of a escalade or denaili Customer complaint was low oil pressure he said several guys drove it with no complaints. But You spend that kinda money on a vehicle they just throw a new engine in it to make you happy. Sure he pays a cheap core charge and has several engines. I traded my dart 205 heads for it. So rebuild,stroke,solid roller,compression,heads and single plane with bunch o nitrous. Still going to run my setup I have now. This is just a project getting started.
I'm going to e-mail you. I finally got a truck.
#109
Old School Heavy
iTrader: (16)
We have made 680-690 on an engine dyno with our stg 1 ls3 heads and stock ls3 botom end. it made 566 to the rear tire with a 6 speed. So, that's about 1.79 hp per CI. Make it 403ci and it could possibly make 725hp. That was with a cam motion LLR and the Stock LS3 intake.
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DualQuadDave (08-16-2022)