The BTR PDS Stage 4 Camshaft V2 is BTR's most aggressive camshaft offering for GM LSA and LS9 engines, featuring an ultra-aggressive idle and ultra-stable lobes for higher RPM potential.
- Part Number: BTR-PDSSTAGE4
- Application: GM LSA/LS9
- Camshaft Style: Hydraulic Roller
- Intake/Exhaust Lift: 0.636 in / 0.636 in
- Intake Duration: 229
- Lobe Separation Angle: 116 LSA
BTR recommends aftermarket or ported OEM cylinder heads and larger throttle bodies when this camshaft is used with higher boost levels.
FAQ
What engines is this camshaft designed for?
It's designed for GM LSA and LS9 engines, recommended for those seeking more power than BTR's Stage 3 offers.
What superchargers pair well with this camshaft?
It's well suited for high-RPM Max Effort stock displacement or 4-inch stroker applications paired with a Magnuson 2650 or Whipple 3.0 PDS supercharger.
Are upgraded cylinder heads recommended?
Yes, BTR recommends aftermarket or ported OEM cylinder heads and larger throttle bodies for higher boost applications.
What are the key specs for this camshaft?
It has a 229 intake duration, 0.636/0.636 lift, and 116 LSA.

