Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] the use of 6 pinion

the use of 6 pinion gears means the stress on gears is spread over a greater surface area

and the reverse lockout mechanism eliminates the chance of transmission damage from accidentally shifting into reverse

Aggressive

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

ensuring that your injectors never run dry

Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] the use of 6 pinionThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.