TSP Cathedral Stoker Cam - Stage 3
TEXAS SPEED & PERFORMANCE
SKU #TSP-CathStroker-Stg3
$419.99
Texas Speed Stage 3 Cathedral Stroker Camshaft The Texas Speed Stage 3 Cathedral Stroker Camshaft is engineered for serious naturally aspirated LS stroker combinations producing maximum power at higher engine speeds. Featuring 244/256 duration, .644"/.632" lift, and a 112 LSA, this camshaft is designed specifically for 402 cubic-inch and larger cathedral-port LS engines.
SKU
TSP-CathStroker-Stg3
Qty
Texas Speed Stage 3 Cathedral Stroker Camshaft
The Texas Speed Stage 3 Cathedral Stroker Camshaft is engineered for serious naturally aspirated LS stroker combinations producing maximum power at higher engine speeds. Featuring 244/256 duration, .644"/.632" lift, and a 112 LSA, this camshaft is designed specifically for 402 cubic-inch and larger cathedral-port LS engines.
Intended for high-performance street/strip and race-oriented applications, the Stage 3 delivers exceptional top-end airflow and horsepower when paired with aftermarket cathedral-port cylinder heads, a high-flow intake manifold, and a properly matched drivetrain.
Developed In-House by Texas Speed
Every Texas Speed camshaft is developed using our in-house lobe design process, allowing our engineering team to optimize valve events for specific engine displacement, cylinder-head airflow, compression ratio, and intended operating range.
Our camshaft designs are validated through Spintron testing to evaluate valvetrain stability and component control throughout the RPM range. This process helps ensure every Texas Speed camshaft delivers reliable high-RPM performance in demanding applications.
Camshaft Specifications
| Duration @ .050" | 244° Intake / 256° Exhaust |
| Valve Lift | .644" Intake / .632" Exhaust |
| Lobe Separation Angle | 112° |
| Intake Centerline | 109° |
| Minimum Recommended Displacement | 402 Cubic Inches |
| Cylinder Head Type | Cathedral-Port LS |
| Recommended Combination | Aftermarket Cathedral-Port Cylinder Heads and Performance Intake Manifold |
| Best Use | High-RPM Naturally Aspirated Street/Strip and Competition Builds |
Performance & Driving Characteristics
| Category | Details |
|---|---|
| Idle Quality | Extremely Aggressive Race-Inspired Idle |
| Powerband | Maximum Upper-RPM Horsepower with Strong Midrange Pull |
| Street Use | Best Suited for Weekend, Street/Strip, and Competition Vehicles |
| Best Combination | 402+ CI Naturally Aspirated Stroker Engines with Fully Upgraded Airflow and Valvetrain Components |
Final performance depends on engine displacement, compression ratio, cylinder-head airflow, induction, exhaust system, tuning, converter selection, gearing, and the complete vehicle combination.
Compare the Cathedral Stroker Camshaft Lineup
| Camshaft | Specifications | Recommended Use | View Cam |
|---|---|---|---|
| Stage 1 | 235/250 .644/.632 110 LSA | Most Street Friendly | View Stage 1 |
| Stage 2 | 238/253 .644/.632 111 LSA | Aggressive Street/Strip | View Stage 2 |
| Stage 3 | 244/256 .644/.632 112 LSA | Maximum High-RPM Performance | Current Camshaft |
Fitment
- GM Gen III and Gen IV LS engines
- Cathedral-port cylinder heads
- 402 cubic-inch and larger naturally aspirated stroker combinations
- Aftermarket cylinder heads and intake manifold recommended
Fitment & Important Notes
- Designed specifically for 402 cubic-inch and larger cathedral-port LS stroker combinations.
- Professional tuning is required to achieve proper drivability and maximum performance.
- Upgraded valve springs and supporting valvetrain components are required.
- Aftermarket cathedral-port cylinder heads and intake manifold are strongly recommended.
- This camshaft is intended for serious naturally aspirated street/strip and competition combinations.
- Always verify piston-to-valve clearance, installed height, coil bind, retainer-to-seal clearance, pushrod length, and overall valvetrain geometry during installation.
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