gpi max performance head & cam package
MAX Package Includes
- GPI MAX Performance LS7 Cylinder Heads w/ BTR Spring Pack
- GPI MAX Performance Camshaft (3 Bolt or Custom Grind Option)
- LS7 Intake Manifold, MSD Atomic, or Holley Hi Ram Manifold
- 1.8 Ratio Rocker Arms
- Fuel Rails
- All necessary gaskets, bolts, and seals for DIY’er
MAX Performance Dyno of 2015 Camaro 1LE
MAX Performance Engine Dyno of LS3
MAX Performance Engine installed in Rock Buggy
Designing the MAX Package
The restrictive factor we encounter when taking the LS3 / L99 beyond 500 rwhp is “piston to valve” clearance and intake manifold.
The MAX Project resolves both issues.
We designed a 12 degree cylinder head – which enables us to run more camshaft and less combustion chamber on these engines – without having to resort to fly cutting valve reliefs in the pistons – so we found the perfect compromise.
This head flows over 400 CFM intake and 270 exhaust featuring a 2.180 intake valve and a 1.59 exhaust.
The intake runner remains a reasonable size for a 376CID engine and allows us to solve the intake manifold issue by allowing the use of a LS7 style unit.
Here are the results of our test vehicle.
This was a 1LE car with 1-7/8″ long tube headers, air box, and a leading competitors Stage 3 camshaft package.
The graph shows the baseline of 453 rwhp, and 519rwhp on 93 pump gas…
…and 542rwhp with the MAX package on E-85.
We’d love to tailor this setup to any crazy build you are dreaming up!
Just give us a call at (501) 985-4947 or email firstname.lastname@example.org.