Intake Manifolds - Oldsmobile 455

Olds 455 V-8 Performer Manifold (Optional Hard Coat Anodizing Available)

• Engine Make/Size: Olds 400-455
• RPM Range: Idle -5500
• Number Of Carbs: One
• Cylinder Head Type: Standard

Performer manifolds are dual-plane, low-rise intake manifolds with a 180° firing order and patented runner design that you won't find in other brands. This patented design greatly improves torque over a wide rpm range, especially off-idle through the mid-range. Throttle response is excellent Performers are ideal for stock or mildly modified marine engines. These manifolds can be ordered hard anodized to prohibit corrosion in saltwater environments.

Oldsmobile 455 RPM Air-Gap Intake Manifold

• Engine Make/Size: Olds 455
• RPM Range: 1500-6500
• Number Of Carbs: One
• Cylinder Head Type: Standard

The Original. Our proven, race-wining Air-Gap design in a dual-plane manifold. The award- winning RPM Air-Gap incorporates the same race-winning technology that's used on our competition intakes. The air-gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Includes rear water outlets, two distributor clamp locations and nitrous bosses.

Installation Notes:
• Port Exit Dimensions: 1.28" x 2.30"
• Manifold Height: (A) 5.04", (B) 6.04"; Carb Angle-3°; Carb pad height: 5.54"

Machine Polished Crosswind 455 Olds Intake Manifold

This is the only high performance high rise dual plane manifold available for this engine. It features a number of unique enhancements. The CROSSWIND design which provides an air gap under the plenum helps cool the intake charge for maximum power production. It features a square bore carburetor pad which is an inch and a quarter taller than competitive dual plane manifolds which further enhances the power producing capabilities. The manifold can be drilled and tapped for nitrous nozzles and is also available in versions with machined injector bosses. This is machined polished finish, it is NOT a mirror polish finish, see picture!

Satin Crosswind 455 Olds Intake Manifold

This is the only high performance high rise dual plane manifold available for this engine. It features a number of unique enhancements. The CROSSWIND design which provides an air gap under the plenum helps cool the intake charge for maximum power production. It features a square bore carburetor pad which is an inch and a quarter taller than competitive dual plane manifolds which further enhances the power producing capabilities. The manifold can be drilled and tapped for nitrous nozzles and is also available in versions with machined injector bosses.