Swivel Water Necks

Necks swivel 360° for exact hose alignment. Viton seals are used internally and the flange is O-Ring sealed. Improvements include hard coat anodizing for improved wear and a secondary locking pin for fitting retention. Proven in NASCAR Winston Cup. Must use a spacer with thermostat.
Note: In the event it is necessary to dissasemble above water necks, it is necessary to replace the spiral lock ring if it has been damaged or bent during disassembly. Use extreme care when reinstaling the spiral lock ring to be sure it is completely seated in the lock ring groove.

10-2216 -16 AN Waterneck
10-2217 Rebuild kit -16 AN Waterneck. Contains O-Rings and spiral lock.

10-2220 -20 AN Waterneck
10-2221 Rebuild kit -20 AN Waterneck. Contains O-Rings and spiral lock.
10-2222 Flange O-ring fits 10-2216, 10-2220, 10-2250, 10-2253

Straight Water Neck

Our billet aluminum SBC water neck features a -16AN fitting and is available with (2) 3/8" NPT ports. Features and o-ring seal for no leaks and relief for a thermostat.

10-2316 -16 AN SBC Waterneck
10-2253 -16 AN SBC Water Neck w/ (2) 3/8" NPT Ports

Radiator Water Restrictor

Today's high flow water pumps work too well. They cycle the coolant through the motor well but when it comes to the radiator, often times it passes to quickly. This lower dwell time does not allow the radiator to cool the engine coolant properly. Peterson's new restrictor simply installs in the outlet hose and allows the coolant to slow in the radiotor, allowing proper cooling.

15-2001 Inline Water Restrictor

Y Manifolds for Radiator Applications

Allows the use of a -20 female swivel nut at the radiator and 2 ea. -12 or -16 hoses to the cylinder heads.
Used in Winston Cup.

10-1726 12-12-16 female AN
10-1736 16-16-16 female AN
10-1730 12-12-20 female AN
10-1740 16-16-20 female AN