LSA CAM UPGRADE

LSA | Cam Upgrade

If you’re looking for the next stage in performance and a sound that will scare old ladies, HPF has the cam upgrade package for you – Brian Tooley Racing (BTR) in Kentucky, USA lead the way in valvetrain component design as these new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards. HPF is not shy in leveraging BTR’s extensive testing and as such, our product list for the cam package includes BTR’s camshaft, platinum dual valve springs and V2 rocker trunnions. 

We offer 4 different sized camshafts for the LSA with Stage-1 offering perfect driveability and a mild idle, whereas Stage-4 delivers brutal power and a monster idle – choose your poison. Supporting the BTR components, we use made in Australia, Rollmaster heavy duty single row timing chains and Crow Cams pushrods. Cam selection should be based on driving expectations and should be discussed with one of our HPF representatives. We recommend new hydraulic lifters if your engine has done over 50,000km.

CAMSHAFT OPTIONS

• BTR Stage 1 PDS Torque camshaft - Specs: 217/23X, .619/.607, 114 LSA. This new version of BTR’s Stage 1 PDS camshaft makes more power and torque everywhere in the curve compared to previous versions of BTR’s PDS cams. Developed in house, BTR went back to the drawing board and found more power and torque even with the use of less intake duration. These new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards.

• BTR Stage 2 PDS Torque camshaft – Specs: 221/24X, .619/.617, 113 LSA. This new version of BTR’s Stage 2 PDS camshaft makes more power and torque everywhere in the curve compared to previous versions of BTR’s PDS cams. Developed in house, BTR went back to the drawing board and found more power and torque even with the use of less intake duration. These new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards.

• BTR Stage 3 PDS Torque camshaft V2 – Specs: 226/25X .636″/.636″ 112.5 LSA. The V2 PDS Stage 3 Torque camshaft was designed for those customers wanting good low to mid rpm range torque, without sacrificing top end horsepower. This cam has a slightly more aggressive idle than previous versions, yet still provides good drivability. This cam works well with stock long blocks and stock or ported blowers. These new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards.

• BTR Stage 4 camshaft V2 – Specs: 229/25X, .636″/.636″, 116 LSA. The most aggressive camshaft Brian Tooley Racing offers for GM LSA & LS9 engines. This cam is recommended when looking for more power than the Stage3 application offers and has an ultra-aggressive idle. It is perfect for use in high rpm Max Effort stock displacement, or 4″ stroker applications when paired with a Harrop H2650i or Whipple 3.0 superchargers. BTR recommends the use of aftermarket or ported OEM cylinder heads and larger throttle bodies when used with higher boost levels. This cam uses ultra stable lobes for higher RPM potential, and has proven to be extremely durable in testing.