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Texas Speed 228/232 Cathedral Port LS Camshaft

The Texas Speed 228/232 camshaft is a proven naturally aspirated street-performance cam designed for cathedral-port LS engines, including LS1, LS2, and LS6 applications. Its 228/232 duration, .600" lift, and 112 LSA provide a noticeable performance idle, strong midrange power, and excellent top-end performance without sacrificing daily drivability when properly tuned.

This cam uses valve events that work well with either a quality beehive spring or a dual valve spring package. With the proper supporting modifications in place, dyno testing has shown gains of approximately 50-55 rear-wheel horsepower.

Camshaft Specifications

Duration @ .050"	228° Intake / 232° Exhaust
Valve Lift	.600" Intake / .600" Exhaust
Lobe Separation Angle	112°
Operating RPM Range	2,000-7,000 RPM
Minimum Recommended Compression	10.1:1 or Higher
Recommended Valve Springs	PAC-1219 Beehive Springs or TSP/PAC .660" Dual Valve Springs
Recommended Stall Converter	3200 RPM or Higher
Recommended Rear Gear	Not Required; 3.23 or Higher Recommended for Automatic Applications
Tuning Required	Yes

Performance & Driving Characteristics

Category	Details
Estimated Power Gain	Approximately 50-55 RWHP with Proper Supporting Modifications
Idle Quality	Noticeable Performance Idle
Drivability	Excellent Daily-Driver Manners When Properly Tuned
Best Use	Naturally Aspirated Street and Weekend Performance Builds

Actual results will vary based on engine displacement, compression ratio, cylinder heads, intake, exhaust, tuning, drivetrain configuration, and overall vehicle setup.

Fitment

Designed for naturally aspirated LS engines equipped with cathedral-port cylinder heads.

Fitment & Important Notes

A minimum 3200 RPM stall converter is recommended for automatic-transmission applications.
Custom tuning is required for both automatic and manual-transmission vehicles.
Upgraded valve springs are required. Recommended options include PAC-1219 beehive springs or TSP/PAC .660" dual valve springs.
A minimum compression ratio of 10.1:1 is recommended for best performance.
An upgraded rear gear is not mandatory, but a 3.23 or higher ratio is recommended in automatic vehicles for improved performance.
Always verify piston-to-valve clearance, valve spring compatibility, and valvetrain geometry during installation.

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