This Chevrolet Performance LS9 camshaft is a hydraulic roller grind for GM LS-Series engines. It is the factory LS9 supercharged engine camshaft profile.
Specifications:
- Camshaft, LS9 hydraulic roller
- Intake lift 0.562 in, exhaust lift 0.562 in
- Intake duration 211, exhaust duration 230
- Lobe separation angle 122.5
- Fits GM LS-Series
- Sold individually (each)
- Part number: 12638427
Applications:
- GM LS-Series engines (LS9 profile)
FAQ
What are the specs of cam 12638427?
It is the LS9 hydraulic roller camshaft with 0.562 in lift on both intake and exhaust, 211 and 230 degrees duration, and a 122.5 lobe separation angle.
What type of camshaft is it?
It is a hydraulic roller camshaft, the factory LS9 grind.
Which engines can use it?
It fits GM LS-Series engines and is the camshaft used in the supercharged LS9.

