BTR LS PDS Stage 3 Torque Camshaft - 1.8 Rocker Ratio
This Brian Tooley Racing PDS Stage 3 Torque cam is the 1.8-ratio-rocker version for compatible Gen III/IV LS positive-displacement-supercharged builds. It emphasizes low/midrange torque with an aggressive idle and top-end capability. BTR recommends E85.
- SKU: BTR-PDSSTAGE3TQ18
- 226/25X duration; .644/.644-inch lift; 112.5 LSA
- Intake lobe lift at TDC: .06025
- Hydraulic roller; three-bolt attachment
Engine and vehicle fitment
Engine-family references include LSA-powered 2009–2015 Cadillac CTS-V and 2012–2015 Chevrolet Camaro ZL1, but this grind requires a compatible 1.8-ratio rocker setup. It is not a drop-in match for their stock rocker configuration. Other LS swaps require the correct supercharger and valvetrain combination.
Verify rocker geometry, springs, pushrod length, piston-to-valve and retainer clearances, fuel system and calibration. Camshaft only; rockers, springs and installation parts are not included.
Estimated shipping weight: 15 lb, inferred from BTR’s US catalog weight entry. BTR lists dimensions 24 × 3 × 3 without units; a provisional 24 × 4 × 4-inch shipping package is used. Final packed measurements may vary.
BTR manufacturer specifications. Manufacturer image is representative.
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