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28 & 31 spline axles:Requires bearing PCE231
The precise design of these Speedmaster carburetor spacers provides a smooth transition of fuel from the carburetor to the intake manifold
These chrome water necks from Speedmaster add a touch of class to your cooling system
They're made from quality materials
Speedmaster engine hardware are premium-grade
Pontiac 455 OEM 2 Bolt to 4 Bolt Straight Billet Steel Main Caps 28 & 31 spline axles:RequiresSpeedmaster billet main caps are precision CNC machined from superior quality 1025 billet steel. These extreme main cap sets consist of the center three caps. Speedmaster billet main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores, and increasing the cap's resistance to closing up under high loads.
