Holden 253-308 Low-Rise Single Plane Intake Manifold, Natural Cast FinishIdle - 5500 RPM, Square Bore Carburettor Pad, Non-EGRBrand: AEROFLOWPart Number: AF6000-4000Description: Get the maximum power from your carburetted engine with this Low Rise Holden carburetted cast intake manifold. This single-plane intake manifold is designed tokeep your air and fuel distribution going into the engine at a steady and even flow for maximum performance and efficiency. The carburettor-mounting pad is designed to accept aftermarketsquare-bore carburettors with either manual or electric choke options available on today’s market. Specifically designed for Holden 304 V8 engines operating from idle to 5500 rpm range. In most cases, these manifolds accept late model water necks, air conditioning, alternator and H.E.I. ignition systems.
Intake Runners should be port matched to your cylinder heads for optimal performance.
• FitsHolden 253, 308 V8 Engines. Will ONLY suit early Holden 308 cylinder heads. This is designed for Red, Blue and Black Holden V8 engine models.
• Single Plane Configuration.
• RPM operating range - Idle to 5500.
• Natural Cast Finish.
• Note: This can be used with both Holden V8 cylinder heads with modifications. New holes must be drilled out in intake manifold at the correct angle and correct location. These locations are marked on the intake manifold with pilot holes predrilled.