Engine Cooling Accessories
Peterson has a variety of products for your enigines cooling system. We have swivel waternecks, spacers and restrictors. All are made in house with the same quality we put into all of our products.
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
Water Neck Riser Blocks
Machined from Billet aluminum, these riser blocks have o-ringed flanges and accomodate a thermostat. Available with -6AN, -8 AN, or -12AN ports for cylinder head water lines.
1" Thick
10-2250 Aluminum Riser Block
10-2251 Aluminum Riser Block w/ 2ea -6 AN Ports
10-2252 Aluminum Riser Block w/ 2ea -6 AN Ports and water temp sender port
1 1/4" Thick
10-2255 Aluminum Riser Block
10-2256 Aluminum Riser Block w/ 2ea -8 AN Ports
10-2257 Aluminum Riser Block w/ 1ea -10 AN Port
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
10-1729 12-12-20 female AN
10-1740 16-16-20 female AN
Aluminum Radiator Cap Flanges
Great for fabricating overflow cans or radiators.
10-2241 Radiator Cap Flange - Cast Aluminum