TSP Turbo Stroker Camshaft – 408+ CID LS with LS3 Heads
The TSP Turbo Stroker Cam is purpose-built for high-horsepower forced induction LS3-based strokers running big single or twin turbos. Designed to shine with 408+ cubic inch builds, this cam is optimized for boost ramp control, upper RPM stability, and strong top-end power in serious street/strip or drag applications.
Camshaft Specifications:
Duration @ .050” (Intake/Exhaust): 235° / 250°
Lift (Intake/Exhaust): .644" / .632"
LSA: 114°
ICL: 112° (114+2)
Powerband: Upper mid-range to high RPM
Boost Compatibility: Ideal for 67–76mm twin or 80–88mm single turbo setups
Required Components:
Valve Springs: PRC VS2230 or PAC-2187 dual spring kits required
Pushrods: 5/16" hardened pushrods required
Recommended Above 7,000 RPM: PAC-1209X springs, 3/8" pushrods, and Johnson tie-bar lifters
Dyno Proven – 1200 HP Stroker Setup:
This camshaft was dyno-tested on a TSP Dart 427 CID short block with the following components:
PRC 260cc Stainless Steel Cylinder Heads
TSP Stealth Low Profile Intake Manifold
Twin Pulsar 6866G Turbos
Flowtech 1-7/8” Turbo Headers
CX Racing Air-to-Water Intercooler – 105°F average intake air temps
Fuel: VP Racing X85
Dyno pull started at 7 PSI and ramped up to 20 PSI at peak power — delivering massive boost-friendly gains across the entire curve.
Best Suited For:
408+ CID LS engines with LS3-based cylinder heads
Aftermarket pistons with valve reliefs
Large single or twin turbo builds (67mm–88mm)
Race-focused street builds, roll racing, and high-power drag setups
Aftermarket cylinder heads and intake manifold strongly recommended
The TSP Turbo Stroker Camshaft was designed to dominate in serious boosted LS builds. If you’re pushing big cubes, big boost, and want a cam to match, this is the one that gets it done.
