Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] The oil pan helps to

The oil pan helps to cool the oil thru its contact with the outside air

These combinations start with a reliable Speedmaster 9

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

and have a maximum pressure of 7 psi with an externally accessible pressure relief valve

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

Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] The oil pan helps toThe 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.