Peterson Fluid Systems Water Neck Spacer Kit, 1.250" Thick, Dual 8 AN Female Ports, O-Ring, Aluminum, Chevy V8 SKU PET-10-2256 $96.95 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details Machined from billet aluminum. These have o-ringed flanges and accomodate a thermostat. Available with -6 AN, -8 AN or -10 AN ports for cylinder head ... Details Back DetailsMachined from billet aluminum. These have o-ringed flanges and accomodate a thermostat. Available with -6 AN, -8 AN or -10 AN ports for cylinder head water lines. Ratings & ReviewsNo reviews availableBe the first to Write a Review