Edelbrock Dual-Quad Manifolds For B/B Chevy


CHEVROLET 396-502 V8
C-66-O/C-66-R DUAL-QUAD (1500-6000 RPM)
Designed for 396-502 c.i.d. Chevys, tests confirmed smooth, consistent part-throttle operation with a 25 hp gain over Torker II and a torque gain of 30 ft-lbs. over Performer. Will not fit tall-deck truck blocks. Includes metering rods to calibrate Edelbrock carbs. #1405 Carb center to carb center is 6-7/16". Use with Performer- Plus cam/kit #2162 for low-end torque or Torker-Plus cam/kit #5062 for top-end power.
B/B Chevy C-66-O/C-66-R Dual-Quad Intake Manifolds by Edelbrock
Application Dyno Emissions Satin Polished
C-66-0 for 1975 & Earlier Large, Oval-Port Heads (non-EGR) - 5420 54201
C-66-R for Rectangular-Port Heads (non-EGR) - 5421 -
Edelbrock Carburetor Recommendation CARB RECOMMENDATIONS: Edelbrock Thunder Series AVS #1803 and #1804, 500 cfm or #1405 (600 cfm) Carburetor.
Edelbrock Installation Note INSTALLATION NOTE: H.E.I. will fit. Recommended intake gasket: Edelbrock #7203 (for #5420) or #7202 (for #5421). Manifold height: A-3.95", B-4.65"; Carb pad height: 4.30". Port exit dimensions: #5420 - 1.64" x 1.94"; #5421 - 1.66" x 2.30". For the heights of all Edelbrock manifolds, please visit the the Manifold Reference Dimensions page.

CHEVROLET 396-502 V8
RPM AIR-GAP DUAL-QUAD-O/R (1500-6500 RPM)
Designed for street 396-502 c.i.d. Chevy V8's. These intakes stand 7/8" taller than the low-profile C-66-O/R dual-quad intake and offer performance improvements in the 1500-6500 rpm range. The large runners feature our unique Air-Gap design that separates the runners from the hot engine valley for a cooler, denser charge. In dyno tests on a ZZ 502 with intake #7522, heads #77485 and #2261 Rollin' Thunder hydraulic roller camshaft, we made 602 hp, 15 hp more than the Performer RPM manifold #7163. Both intakes are also available as a complete manifold and carb kit, see page 131 for more information.
B/B Chevy RPM Air-Gap Dual-Quad Intake Manifolds by Edelbrock
Application Dyno Emissions Satin EnduraShine
RPM Air-Gap Dual-Quad for 1975 & Earlier Oval Port (non-EGR) - 7520 75204
RPM Air-Gap Dual-Quad Rectangular Port (non-EGR) - 7522 75224
Edelbrock Carburetor Recommendation CARB RECOMMENDATIONS: Edelbrock Thunder Series AVS #1803 and #1804 (500 cfm) Carburetor.
Edelbrock Installation Note INSTALLATION NOTE: Neither H.E.I. or mechanical tach drive distributors will fit. #7520: Recommended intake gasket: Edelbrock #7203. Manifold height: A-4.81", B-5.56"; Carb pad height: 5.19". Port exit dimensions: 1.60" x 1.93". #7522: Recommended intake gasket: Edelbrock #7202. Manifold height: A-5.18", B-5.94"; Carb pad height: 5.56". Port exit dimensions: 1.57" x 2.27". For the heights of all Edelbrock manifolds, please visit the the Manifold Reference Dimensions page.

CHEVROLET 396-502 V8
STREET TUNNEL RAM 2-O (3500-7500 RPM)
Designed for use on 396-502 c.i.d. big-block Chevy V8's with large oval-port heads (1975 and earlier). Ideal for applications such as pro-street or marine where low-end torque is not a prime factor. Use with Performer RPM cam/kit #7162 for maximum top-end power.
B/B Chevy Street Tunnel Ram Intake Manifolds by Edelbrock
Application Dyno Emissions Part #
Street Tunnel Ram 2-O (base and top) - 7115
Street Tunnel Ram 2-O (base only) - 7190
Street Tunnel Ram 2-O (top only) - 7191
Throttle Linkage (forward) - 7097
Top Gasket (included with base and top) - 6989
Performer RPM Camshaft/Lifters/Lube Kit (high-horsepower) - - 7162
Edelbrock Carburetor Recommendation CARB RECOMMENDATIONS: erformer #1405, 600 cfm, Thunder Series AVS #1805 (650 cfm) Carburetor.
Edelbrock Installation Note INSTALLATION NOTE: Top has vacuum outlet for power brakes. Manifold will accept forward mounted carbs. Distance from carb center to carb center: 9.38". H.E.I. ignition will not clear manifold. Recommended intake gasket: Edelbrock #7203. Manifold top with bottom height: 10.63". Port exit dimensions: 1.56" x 1.89". For the heights of all Edelbrock manifolds, please visit the the Manifold Reference Dimensions page.

Edelbrock Tech Note PRODUCT EMISSIONS GUIDE
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps