Peterson Fluid Systems SB Chevy .250" Intake Manifold End Rail Spacer Kit 21411406 When the engine reaches the

When the engine reaches the activation rpm

90 Degree Plug

When using Edelbrock carburetors

1923-1947 STREET ROD CID 400

Double side for short or long bar

Peterson Fluid Systems SB Chevy .250" Intake Manifold End Rail Spacer Kit 21411406 When the engine reaches theFill the gap between the manifold and the lifter valley end rails when using rased port cylider heads on small block Chevy engines. Sold in pairs, includes four 3 16" roll pins for retention. Drilling of the block is required for installation. Peterson Fluid Systems is the choice of champions for wet and dry sump oiling systems. Peterson Fluid Systems offers a complete system from their class leading oil pumps to their championship winning oil tanks,