Texas Speed 6.0 Cathedral LS Chopacabra

Texas Speed & Performance Chopacabra Camshaft – Cathedral Port 6.0 Edition

Looking for big chop in a cathedral-port 6.0L build? This version of the Chopacabra camshaft is designed specifically for stock 6.0L LS engines running cathedral-port heads, offering aggressive sound and strong midrange power — all while retaining compatibility with factory-style components.

With a wide powerband, max overlap, and a signature lope, this cam delivers the sound and feel you want without requiring high-lift valvetrain upgrades. It's the perfect match for truck and street builds that want attention at idle and performance when it counts.

Camshaft Specifications:

• Duration @ .050” (Intake/Exhaust): 220° / 228°
• Lift (Intake/Exhaust): .550" / .550"
• LSA: 108°
• ICL: 106° (108+2)
• Overlap: Maximum – built to lope

Fitment:

• 6.0L LS-based engines
• Compatible with cathedral-port cylinder heads (317, 243, 799, etc.)

Requirements & Recommendations:

• Valve Springs: LS6-style springs or better required
• Pushrods: Designed for stock-length pushrods, but always measure for proper preload
• Torque Converter: Compatible with stock converter, but 2600+ stall recommended for peak performance

Dyno Proven Performance:

This camshaft was tested on the following setup, producing strong gains and aggressive sound:

• Engine: 370 CID LQ4-based build
• Compression: 10:1
• Cylinder Heads: Stock 317 Cathedral Port
• Valve Springs: LS6-style
• Intake: Stock TBSS / NNBS
• Fuel: 93 Octane Pump Gas

The Chopacabra – Cathedral Port Edition brings that unmistakable Texas Speed cam sound to your 6.0L build without overcomplicating your parts list. If you're chasing chop with a proven, dyno-tested setup — this is your cam.