| Ford 289 - 302, .468" Shaft Diameter, Melonized Distributor Gear, W/ Roll Pin Distributor gear material selection guide: - Mechanical or hydraulic flat tappet: Iron Or Composite
- Hardened steel hydraulic roller or solid roller: Hardened Steel, Composite, Or Melonized
- Billet steel hydraulic roller or solid roller: Bronze, Composite, Or Melonized
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