Product Description
Distributor Housing Shim Kit, 1290 I.D. & 1830 O.D.
Fits: Small Block, Big Block, and 90° V6 Chevy Engines
Eliminates oil pump bind and spark scatter when using a distributor in an engine with resurfaced heads or decks
Made from high impact nylon to exact GM gasket specs
Kit insures leak-free operation and contains one each .030", .060" and .100" shims