Peterson Fluid - 10-2251
Water Neck Spacer - 1 in Thick - Two 6 AN Female Ports - O-Ring - Aluminum - Clear Anodized - Chevy V8 - Kit
W/NECK SPACER 1 2 X -6AN
Machined from billet aluminum. These have o-ringed flanges and accommodate a thermostat. Available with -6 AN, -8 AN or -10 AN ports for cylinder head water lines.