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ELITE SERIES MANIFOLDS BIG BLOCK CHEVROLET MANIFOLDS
SM23000
SM23001
Holeshot Series Manifolds for Big Block Chevrolet V8 w / Oval Ports
This manifold is a stock replacement part for 396, 402, 427, and 454 V8’ s with OEM 4-bbl carb; 1965-’ 72( 1973 non-CA) passenger cars and 1966-’ 83 trucks, Suburbans and heavy vehicles, except stock equipped EGR. This manifold design includes nitrous bosses, dual distributor holddowns, and four corner water ports. This manifold also includes a special carb adapter to allow the use of aftermarket square bore carburetors. This is an excellent street performance manifold. It will not fit under the hood of Corvettes without hood modifications.
SM23025
SM23000 Big Block Chevy V8 w / oval ports- Polished Finish SM23001 Big Block Chevy V8 w / oval ports- Satin Finish
SM23026
Eliminator Open Air Series Manifolds for BB Chevrolet V8 w / Oval Ports
Now available for big block Chevy engines with oval ports is our popular manifold, commonly referred to as an air gap style design. This open area under the plenum chamber allows ambient air to provide additional cooling to the intake charge which produces additional power. This extra space also helps isolate the upper part of the manifold from the transference of engine heat. Like many of our manifolds, this manifold features nitrous bosses, four corner water ports and dual distributor holddowns.
SM23030
SM23025 Big Block Chevy V8 w / oval ports- Polished Finish SM23026 Big Block Chevy V8 w / oval ports- Satin Finish
SM23031
Shootout Series Manifolds for BB Chevrolet V8 w / rectangular ports
This manifold is primarily best on big block engines producing power up to the 700 horsepower range. The manifold features large rectangular ports( 1.63” x 2.25”) along with nitrous bosses, four corner water ports and dual distributor hold downs. This is a very affordable manifold that makes outstanding power and torque.
SM23030 Big Block Chevy V8- 4150 carb flange- Polished Finish SM23031 Big Block Chevy V8- 4150 carb flange- Satin Finish
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