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Peterson Fluid Systems water neck spacer 1¼ with two -8 AN ports is machined from billet aluminum and features an O‑ringed flange to accommodate a thermostat. This configuration provides two -8 AN connections for cylinder head water lines while preserving thermostat fitment and reliable sealing in modified cooling systems.
Peterson Fluid Systems Water Neck Spacer 1 1/4 2 x -8AN
