O-ring style design and fits 1966-75 small block and big block Chevy V8 engines. Includes o-ring gasket and hardware.1966-75 Chevy Polished Aluminum Water Neck ? 15? Swivel $39.99PriceFinish*SelectQuantity*Add to CartBuy NowProduct Details Weight 1.05 lbs Dimensions 9 × 6 × 5 in Finish Polished Material Aluminum Engine Big Block Chevy, Small Block Chevy Neck Angle 15° Hardware Included Yes O-Ring Included Yes Quantity 1 No Reviews YetShare your thoughts. Be the first to leave a review.Leave a Review