Texas Speed Stage 1 Cathedral NA Camshaft

216/232 .600"/.600" | 112 LSA | 108 ICL

Overview

The Texas Speed Stage 1 Cathedral NA Camshaft is designed for naturally aspirated cathedral-port LS engines that need stronger horsepower and torque without sacrificing everyday drivability. With factory torque converter compatibility on both 5.7L and 6.0L combinations, it is an excellent choice for daily-driven cars and trucks.

Featuring 216/232 duration, .600"/.600" lift, a 112 LSA, and 108 ICL, the Stage 1 delivers a noticeable performance idle, strong low- and mid-range response, and a broad 3,000-6,900 RPM powerband.

During testing on a 6.0L LS engine, the Stage 1 produced 479 peak horsepower and gained 68 horsepower and 27 lb-ft of torque over the stock LS6 camshaft.

Developed In-House by Texas Speed

Texas Speed camshafts are developed using our internal lobe-design process, allowing our engineering team to match the valve events and lobe profiles to the intended engine displacement, cylinder-head airflow, operating range, and performance goals.

Camshaft and valvetrain behavior is evaluated through Spintron testing to help verify stability and valve control throughout the intended RPM range. This in-house development process allows Texas Speed to create purpose-built camshafts instead of relying on generic lobe combinations.

Camshaft Specifications

Duration	216° / 232°
Valve Lift	.600" / .600"
LSA / ICL	112 LSA / 108 ICL
Tested RPM Range	3,000-6,900 RPM
Torque Converter	Stock Converter Compatible on 5.7L and 6.0L

Dyno Comparison

The graph below compares the Texas Speed Stage 1 through Stage 4 Cathedral NA camshafts against the stock LS6 camshaft. The Stage 1 provides the strongest street-focused balance of low-RPM response, average torque, and factory-converter compatibility.

Dyno Results

Horsepower Gain	+68 HP
Torque Gain	+27 lb-ft
Peak Horsepower	479 HP at 6,000 RPM
Peak Torque	480 lb-ft at 4,800 RPM
Average Horsepower	409 HP
Average Torque	440 lb-ft
Idle Vacuum	42 kPa

Compare the Cathedral NA Lineup

Stage 1 — Current Product Best for stock-converter daily drivers	You Are Here
Stage 2: Best all-around street cam	View Stage 2
Stage 3: Best street/strip cam	View Stage 3
Stage 4: Maximum naturally aspirated performance	View Stage 4

Fitment & Important Notes

Fits Gen III and Gen IV cathedral-port 4.8L, 5.3L, 5.7L, and 6.0L LS engines.
Designed for naturally aspirated applications.
Upgraded valve springs rated for .600" lift are required.
Hardened chromoly pushrods are recommended.
Professional ECU tuning is required.
Pushrod length and piston-to-valve clearance should be verified during installation.

Dyno testing was performed on a 6.0L LS engine against a stock LS6 camshaft. Results will vary based on the complete engine combination, supporting modifications, fuel, testing conditions, and calibration.