L33 build
Thread Starter
Teching In
Joined: Mar 2025
Posts: 5
Likes: 1
L33 build Picked up an l33 the other day, it came with a set of 706 heads. With the flat top pistons, small cc combustion chamber on the 706s, and the truck Norris cam I was hoping to slap in it I’m a bit worried about valve clearance. Also planning supporting bolt ons. Seeking advice, is this a terrible setup? What would you do considering a limited budget? Anybody running this setup? What power might it make? Lmk!
On The Tree
Joined: Feb 2025
Posts: 107
Likes: 36
From: England
Check out Richard Holdener as he tests a 5.3 fairly standard setup with the Truck Norris & other cams that will help show your likely improvements ( )
Clearance won't be an issue, but you need to budget for a set of springs, unless you use the NSR version.(https://www.summitracing.com/parts/btc-s0393)
Clearance won't be an issue, but you need to budget for a set of springs, unless you use the NSR version.(https://www.summitracing.com/parts/btc-s0393)
I'm running the LS6 Power Max Plus cam from Scoggin Dickey in my LC9 and it runs great. It's a 220/222 with .570" max lift made for LS3 springs.
https://sdparts.com/i-24138755-sdpc-...hoC4nMQAvD_BwE
https://sdparts.com/i-24138755-sdpc-...hoC4nMQAvD_BwE
Those heads (mildly ported and performance valve job), as much compression as you can run for the fuel in your area (alum block/heads LS supports 11:1 easy on 91 and around 12:1 on 93), headers, LS6 intake manifold (great bang for the buck or Trailblazer if it fits), healthy cam should make very close to 380-400rwhp depending on transmission.
What vehicle is it going into and intended use? In something light that would be a very fun combo.
What vehicle is it going into and intended use? In something light that would be a very fun combo.
Last edited by gnx7; Mar 31, 2025 at 02:16 PM.
Thread Starter
Teching In
Joined: Mar 2025
Posts: 5
Likes: 1
Those heads (mildly ported and performance valve job), as much compression as you can run for the fuel in your area (alum block/heads LS supports 11:1 easy on 91 and around 12:1 on 93), headers, LS6 intake manifold (great bang for the buck or Trailblazer if it fits), healthy cam should make very close to 380-400rwhp depending on transmission.
What vehicle is it going into and intended use? In something light that would be a very fun combo.
What vehicle is it going into and intended use? In something light that would be a very fun combo.
