Holden V8 304 355 5.0L VN-VT Carb Hydraulic Camshaft 234/244@50

Holden V8 304 355 5.0L VN-VT Hydraulic Camshaft 234/244@50

Designed specifically for Holden V8 engines with VN-VT carbureted heads, this hydraulic cam brings an aggressive, street/strip-friendly profile to your 304/355/5.0L setup. It delivers a noticeable mid‑range bite and a choppy idle that enthusiasts recognize, while remaining practical for everyday driveability when tuned properly.

Key characteristics include a hydraulic lifter design, compatibility with 1.65:1 rocker arms for increased duration and lift, and a cam profile that favors high-performance on the street and at the track. This cam is not a stock replacement—it’s a deliberate upgrade meant to be paired with appropriate supporting components to unlock its full potential.

• Application: Holden V8 304/355 5.0L engines with VN-VT carbureted heads (carby VN-VT heads only).
• Cam action: Aggressive street/strip hydraulic camshaft. Choppy idle performance is expected with the right tuning.
• RPM range: 2900–6200.
• Part Number: 4649.
• Duration (with 1.65 rocker): Intake 284°, Exhaust 302°.
• Duration @ 0.050” lift: Intake 234°, Exhaust 244°.
• Lobe Separation Angle: 108°.
• Lash (Measured Hot): Intake.501", Exhaust.501" (Hydraulic lifters).
• Must use performance springs and retainers.
• Setup considerations: Requires headers, porting, carbie, ignition, comp & high stall.