LS Conversion Thermostat Housing
The first OEM-style thermostat housing for LS swapped muscle cars and trucks! This 6061 die-cast aluminum housing is a direct bolt-on for LS1, LS2, and LS3 engines and points the water inlet toward the lower radiator hose...
Chrome O-Ring Type OEM Water Neck; Late Style
Triple chrome plated late style water neck designed for 1966-75 Chevrolet models. Each chrome water outlet comes complete with O-ring and mounting bolts for fast installation. {specs} {fitment}
1941-62 Chevrolet 235, 261 Stovebolt Inline-6; OTB Gear Water Outlet Neck Spacer Kit
OTB Gear water outlet spacer kit for Chevrolet Stovebolt 216, 235 or 261 engines. This spacer providea a 1/2" of additional clearance between the water outlet and and the valve cover. This gives a little more room to help...

1941-62 Chevrolet 235, 261 Stovebolt Inline-6; OTB Gear Water Outlet Neck Spacer Kit
Classic $65.99 ea
Polished Aluminum 15° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. {specs} {fitment}
1955-73 Water Neck Mounting Bolts
Correct original style water outlet attachment bolts featuring "TR" head marks. Includes (1) 3/8"-16 x 2-1/8" bolt, and (1) 3/8"-16 x 1-1/8" bolt with "TR" head mark. {fitment}
Chrome Plated Aluminum 15° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. {specs} {fitment}
Polished Aluminum 45° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. O-ring style design and fits 1966-75 small block and big block Chevy V8 engines....
Chrome Water Neck; Gasket Type Early OEM Style, Chevy Engines Only
Triple chrome plated early style water neck. Complete with plated bolts and gasket.Chevy Engines Only {fitment}
1997-08 LS 45 Degree Swivel Water Neck-Black
These aluminum LS engine swivel water necks will help you to get the right position to attach the radiator hose on a conversion. Fits 1997-08 LS 1, LS2, 4.8, 5.3, 5.7, and 6.0 engines. Includes hardware only no o-ring...
1997-08 LS 45 Degree Swivel Water Neck-Polished
These aluminum LS engine swivel water necks will help you to get the right position to attach the radiator hose on a conversion. Fits 1997-08 LS 1, LS2, 4.8, 5.3, 5.7, and 6.0 engines. Includes hardware only no o-ring...
1955-1966 Chevrolet; Water Neck Housing; with Gasket; V8; Aluminum
OEM style replacement water neck/thermostat housing designed for use with various 1955-1966 Chevrolet vehicles with a 8-cylinder engines. Manufactured in aluminum replicating the original min design, fitment, and...
1963-1973 GM; Water Neck Housing; with Gasket; 6 Cylinder; 230ci, 250ci
Mounting Holes: 3 1/4" apart Neck/Inlet Hole: 1 1/4" I.D. & 1 1/2" O.D. Mounting Flange: 4 1/8" long
1963-1973 GM; Water Neck Housing; with Gasket; 6 Cylinder; 230ci, 250ci
Classic $20.99 ea
1955-1966 Thermostat Housing; Cast Aluminum; Features Casting #3837223, w/Gasket; OE Style V8
Correct reproduction of the original cast aluminum thermostat housing designed for use with various 1955-66 General Motors passenger car and truck models. Features part number #3837223 located on the mounting flange. Includes...
1955-1966 Thermostat Housing; Cast Aluminum; Features Casting #3837223, w/Gasket; OE Style V8
Classic $105.99 ea
1955-66 OE Style Water Neck, Orange Powder Coated
This "O" ring style water neck is powder coated in Chevy orange. Keep that original look on your engine with this quality reproduction. GM Full Size passenger car applications: 1955-65 V8 Chevy II/Nova applications: 1964-65...
Orange Powder Coated Late Chevrolet Water Neck
Retain an authentic original appearance and color on your fresh engine with this new "O" ring style water neck that is powder coated in Chevy orange. Camaro applications: 1967-75 small / big block without hole Truck...
Chrome Plated Aluminum 45° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. {specs} {fitment}
Chrome Water Neck; O-Ring Type Early OEM Style
Triple chrome plated late style water neck designed for 1955-65 Chevrolet models. Each chrome water outlet comes complete with O-ring and mounting bolts for fast installation. {fitment}
Polished Aluminum 90° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. {specs} {fitment}
Chrome Plated Aluminum 90° Angle Swivel Water Outlet
Aluminum Swivel water neck rotates 360° degrees and is great for applications where the upper radiator hose is routed different than stock. {specs} {fitment}