![Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Polished] Like all Speedmaster cylinder heads](https://cdn.shopify.com/s/files/1/0762/0316/3867/files/1-147-092.jpg?v=1785189719)
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Like all Speedmaster cylinder heads
It is effective at any rpm level or load
USA Performance servo kits offer increased apply area over the OEM servo for more holding force between shifts
They're precision-machined from T6-106 billet aluminum
These mounting blocks keep your starter secured and properly adjusted
Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Polished] Like all Speedmaster cylinder headsThis manifold is a single plane manifold that will fit under all Pontiac hoods including the Trans Am "Shaker" hood. It accepts a stock Quadrajet carb but we also include an adapter plate for standard square bore carbs. This manifold is designed to work with cylinder heads up to 300 CFM. It is also available machined for injectors.
US$ 137.50
US$ 150.00
