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The Peterson Fluid Systems oil inlet fitting provides a front-of-block oil input for small-block Chevy engines, routing oil over the water pump to feed aftermarket plumbing. This -12 AN inlet features matching -12 AN port and a 3.750" length in aluminum. It’s part of Peterson’s selection of pipe and AN sizes intended to simplify oil plumbing on common small-block Chevy builds.
Peterson Fluid Systems Oil Inlet Fitting -12AN Portx - 12 x 3.750
