MANIFOLDS - Chevrolet - RPM Air-Gap - Small Block
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Chevrolet 262-400 Small-Block V8
RPM AIR-GAP (1500-6500 rpm)
The Original... Our Proven, Race-Winning Air-Gap Design in a Dual-Plane Manifold
Designed for 1955-86 262-400 c.i.d. Chevrolet V8s, the award-winning RPM Air-Gap incorporates the same race-winning technology that's used on our Victor Series 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. Accepts all 1976 and later alternator and A/C brackets for the street. The heater outlet boss is angled for proper fit over the valve cover. The temp sensor boss clears all waternecks. For square-bore carburetors only. No provision for exhaust-heated chokes and no exhaust crossover. Not for 1987 and later cast iron heads and will not fit under stock Corvette hood. Available with standard finish, polished or EnduraShine for a look you've got to see to believe, see Optional Finishes.
Applications Part #
RPM Air-Gap (non-EGR) #7501*
Polished RPM Air-Gap (non-EGR) #75011*
RPM Air-Gap NASCAR Edition includes special edition NASCAR hat (non-EGR) #75013*
RPM Air-Gap with EnduraShine Finish (non-EGR) #75014*
 
Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 650-800 cfm (see Carbs & Accessories), use bracket #8031 or #8036 for 1972-78

Installation Notes: Use #8504 Edelbrock bolt kit. Recommended intake gasket: Edelbrock #7201. Manifold height: A-4.20", B-5.25" (same as #7101), see A/B Measurements. Port exit dimensions: 1.14" x 1.95".


Chevrolet 262-400 Small-Block V8
RPM AIR-GAP VORTEC (1500-6500 rpm)
Based on the powerful Performer RPM Vortec #7116, this single four-barrel intake is designed for 262-400 c.i.d. Chevy V8s with 1996 and later Vortec (L31) cast iron or the new Edelbrock E-Tec aluminum heads. The RPM Air-Gap manifold delivers outstanding performance using the same air-gap technology found in our race-winning Victor manifolds. This unique design separates the hot engine valley from the air/fuel mixture for a cooler, denser charge and more power throughout the rpm range. An external water bypass boss is machined into the front of the water crossover for use on 1996 and later Vortec production engines. Includes rear water outlets, nitrous bosses, a temp sensor boss that clears all waternecks, two distributor clamp locations and a heater outlet boss that's angled for proper fit over the valve cover. Accepts 1976 and later alternator and air-conditioning brackets for street installations. For square-bore carbs. No provision for exhaust-heated chokes and no exhaust crossover. Will not fit under stock Corvette hood. Available with standard finish or EnduraShine finish for a look you've got to see to believe, see Optional Finishes.
Applications Part #
RPM Air-Gap Vortec (non-EGR) #7516*
RPM Air-Gap Vortec with EnduraShine finish (non-EGR) #75164*
 
Carburetor Recommendations: Edelbrock Thunder Series AVS or Performer Series carb, 650-800 cfm (see Carbs & Accessories), use bracket #8032 for 1972-78

Installation Notes: Recommended intake gasket: Edelbrock #7235 or GM #89017465. Manifold height: A-4.20", B-5.25" see A/B Measurements. Stock brackets will require modification to fit the upright manifold bolt holes. Use Edelbrock Vortec throttle bracket #8032, see Throttle Brackets and Hardware. Port exit dimensions: 2.05" tall (odd shaped width).

 
E-Tec Cylinder Heads Performer RPM Hydraulic Roller Lifter Camshaft
Roller Timing Set Cam Gear Drive
Manifold Bolts Valve Covers
Water Pumps  
* Not legal for sale or use on pollution controlled motor vehicles.
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