These billet aluminium flanges have been designed as a weldable base in which Bosch universal throttle bodies can be mounted to. They are 16mm thick to provide a good welding foundation and come with viton o-rings.

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Proflow Valve Covers, Aluminium, Black, Tall, Finned, SB For Chevrolet, Pair

Proflow Valve Covers, Aluminium, Black, Tall, Finned, SB For Chevrolet, Pair

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