Peterson Fluid Systems SB Chevy .187" Intake Manifold End Rail Spacer Kit 10259C 612 in - Duration 291/302

612 in - Duration 291/302 - 115 LSA - 2300/7400 RPM - GM LS-Series 54-337-11

which is more likely to occur using other methods

Dual rear Exit

205 cc Intake

Peterson Fluid Systems SB Chevy .187" Intake Manifold End Rail Spacer Kit 10259C 612 in - Duration 291/302Fill 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,