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Texas Speed Tsunami 235/240 Cathedral Port LS Camshaft

The Texas Speed Tsunami 235/240 camshaft is a max-effort naturally aspirated cam designed for aggressive cathedral-port LS combinations. Its 235/240 duration, .629"/.615" lift, and tight 111 LSA deliver a hard-hitting idle, strong midrange acceleration, and excellent peak horsepower for serious street and strip builds.

Aggressive lobe profiles help bring power in early while continuing to pull through the upper RPM range. With the proper compression, cylinder heads, supporting airflow modifications, and custom tuning, the Tsunami is capable of producing an estimated 70 or more rear-wheel horsepower.

Camshaft Specifications

Duration @ .050"	235° Intake / 240° Exhaust
Valve Lift	.629" Intake / .615" Exhaust
Lobe Separation Angle	111°
Operating RPM Range	2,500-7,000 RPM
Recommended Compression	10.5:1 or Higher
Required Valve Springs	TSP/PAC .660" Dual Valve Springs
Recommended Stall Converter	3600 RPM or Higher
Recommended Rear Gear	3.42 or Higher for Best Performance
Custom Tuning Required	Yes

Performance & Driving Characteristics

Category	Details
Estimated Power Gain	Approximately 70+ RWHP with Proper Supporting Modifications
Idle Quality	Very Aggressive, Hard-Hitting Lope
Powerband	Strong Midrange with Maximum Upper-RPM and Peak-Horsepower Performance
Drivability	Aggressive Street Manners; Best Suited for Weekend and Street/Strip Use
Best Use	Max-Effort Naturally Aspirated Street/Strip 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

TSP/PAC .660" dual valve springs are required. A polished PAC dual-spring kit with lightweight retainers is recommended for proper control of the aggressive lobe profiles.
A 3600 RPM or higher stall converter is recommended for automatic-transmission applications.
A 3.42 or higher rear gear is recommended to take full advantage of the camshaft's powerband.
Custom tuning is required for both automatic and manual-transmission vehicles.
This is not the preferred choice for a typical daily driver. It is best suited for weekend, performance-street, and street/strip combinations.
This camshaft is designed to offer favorable piston-to-valve clearance for its size and can fit factory, unmodified cylinder heads; however, clearance must still be measured during installation.
Always verify piston-to-valve clearance, valve spring compatibility, installed height, coil-bind clearance, retainer-to-seal clearance, and valvetrain geometry during installation.

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