Engines and Components Camshafts and Valvetrain

Texas Speed

TSP Cathedral Stage 3 Turbo Camshaft

$389.99

SKU: 25-TSP5.7CATSTG3

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Ships by Aug 5
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Description

The Texas Speed TSP Cathedral Stage 3 Turbo Camshaft is engineered to deliver significant performance gains for high-output turbocharged LS engine builds. It focuses on maximizing mid-range torque and enhancing top-end power, making it ideal for demanding applications. Designed specifically for larger displacement cathedral-port LS engines, this camshaft is optimized to support higher boost levels and aggressive performance targets. Its specifications include a duration at 0.050" of 228 intake / 236 exhaust and a valve lift of .600" / .600", with a lobe separation angle (LSA) of 114 + 2. To achieve its full potential and ensure proper operation, the TSP Cathedral Stage 3 Turbo Camshaft requires specific supporting components. These include PRC/TSP .660" dual valve springs and 5/16" pushrods. An aftermarket torque converter is also recommended, with the appropriate stall speed depending on the specific engine and overall combination. This camshaft is best suited for 5.7L and 6.0L LS engines equipped with cathedral-port cylinder heads. It is designed for stock 4.8L, 5.3L, 5.7L, and 6.0L LS engines featuring these cylinder heads, supporting both single and multiple turbocharger setups.

MIA's Description

The Texas Speed TSP Cathedral Stage 3 Turbo Camshaft is designed for high-output turbocharged LS builds. It provides strong mid-range torque and increased top-end power for larger displacement cathedral-port engines. This camshaft supports higher boost levels and aggressive performance goals when paired with compatible supporting components.

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Specifications

BrandTexas Speed
Part Number25-TSP5.7CATSTG3
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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