Texas Speed Stage 3 LS Torquer Camshaft - For Cathedral Port Heads

The Stage 3 Torquer v4 camshaft features a more aggressive intake lobe that requires a good double valve spring kit. For customers looking for a quality double valve spring kit, we recommend the PAC .660" double spring kits. The new more aggressive intake lobes & small changes to the camshaft design has allowed us to create more peak power while bringing power in earlier than the Torquer V2. With the Stage 3 camshaft we typically recommend the customer have at least a 3200-rpm stall converter for automatic cars. Tuning required after install.

Note: Valve Springs Required Use TSP or PAC .660 Dual Valve Springs.

Camshaft Specs
Camshaft Use: Street/Strip
Engine Combination: Naturally Aspirated
Camshaft Duration: 231/234
Valve Lift with Factory Rocker Arm Ratio: 0.629 int./0.615 exh.
Lobe Separation (degrees): 111
Camshaft Gear Attachment: 3-bolt
Engines best suited for: Cathedral Heads - LS1, LS2, & LS6
Desired Compression ratio for cam: 10.5:1+
Recommended Springs Required: TSP/PAC Double .660 Valve Springs
Aftermarket Stall Converter Required: Yes, 3200+
Upgraded Rear Gear Required: 3.23 Minimum, 3.42+ is more optimal for maximum performance
Operating RPM Range: 2200-7000
Estimated Power Increase: 55-60+
Fit Stock Untouched Heads: Yes, No Piston to Valve Clearance issues, but measuring is always recommended for any cam installation.
Drivability: Manuals might have slight bucking/surging but can still be daily driven once a proper tune is in place. Automatics with a good stall converter will handle the cam no problem with proper tuning.

Notice: This camshaft is only offered in a 3-bolt design, so if you have a single-bolt factory camshaft you will need to purchase the three-bolt conversion kit that will supply the correct 4x upper timing gear to supply the correct camshaft position signal, as well as the ARP camshaft bolt kit that will supply the three required bolts.  We also offer the conversion kit with a complete, upgraded timing set for those wanting to replace the entire set.