Peterson Fluid Systems Manifold End Rail Spacers - .125" Thick w/ Roll Pins Main Cap Bearing Only 3/16 thickness it requires

Only 3/16 thickness it requires minimal clearance and can be shaped and trimmed for a custom fit

1973-1978 Mazda RX-3

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Peterson Fluid Systems Manifold End Rail Spacers - .125" Thick w/ Roll Pins Main Cap Bearing Only 3/16 thickness it requiresPeterson's End Rail Spacers fill the gap between the manifold and lifter valley end rail when using raised port heads. Available in various thicknesses they are suplied as a kit consisting of a spacer for the water pump and distributor end and (4) 3 16" roll pins to secure them to the block. Requires drilling the block for installation. Peterson Fluid Systems is the choice of champions for wet and dry sump oiling systems. Peterson Fluid Systems offers