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The Peterson end rail spacer .125 kit fills the gap between the intake manifold and lifter valley end rail when using raised-port heads. Supplied as a kit, it includes a spacer sized for the water pump and distributor ends plus four 3/16" roll pins to secure each piece to the block. Use this .125-inch spacer to correct manifold alignment on compatible engines.
Peterson Fluid Systems End Rail Spacer .125
