GM Vortec Adjustable Intake Cam Gear – Fits Inline 4/5/6 (I4/I5/I6) Atlas Engines

Maximize Performance from Your Vortec Inline Engine!
This Adjustable Intake Camshaft Gear is built for GM’s Vortec inline engines – including the 4-cylinder, 5-cylinder, and 6-cylinder Atlas family – allowing you to fine-tune cam timing for improved horsepower, torque, and throttle response.

Perfect for builders, tuners, and off-roaders who want to get the most out of their 4.2L I6, 3.5/3.7L I5, or 2.8/2.9L I4 Vortec engines.

Compatible With GM Vortec Inline Engines:

- I4 (4-cylinder)

 - Vortec 2800 (2.8L)

 - Vortec 2900 (2.9L)

- I5 (5-cylinder)

- Vortec 3500 (3.5L)

- Vortec 3700 (3.7L)

- I6 (6-cylinder)

• Vortec 4200 (4.2L) – found in Trailblazer, Envoy, etc.

PLEASE NOTE UPON INSTALLATION:

Professional installation strongly recommended.

Always check piston-to-valve clearance when adjusting cam timing.

Works best with aftermarket or performance camshafts, but can also optimize stock setups.