Ford Cleveland 302C 351C Chrome Thermostat Housing & Dayco DT66A 82°C Thermostat Kit

• Complete Cleveland cooling outlet kit - Pairs the GASO chrome straight-up thermostat housing with the Dayco DT66A thermostat the Ford Cleveland controlled bypass system requires.
• Correct Cleveland thermostat included - DT66A high flow thermostat with the extended bypass foot, opening at 82°C (180°F).
• O-ring sealed chrome housing - Chrome plated steel housing with internal O-ring, no paper gasket required, supplied with O-ring and mounting bolts.

This kit combines the two parts needed to replace a worn, corroded or leaking thermostat housing on a compatible Ford 302 or 351 Cleveland V8 in one order. The GASO chrome straight-up housing connects the intake manifold to the upper radiator hose with a polished finish under the bonnet, sealing with an internal O-ring instead of a paper gasket. The Dayco DT66A is the Cleveland-specific thermostat with the extended bypass foot that seats against the factory restrictor plate, closing off the internal bypass as the engine reaches operating temperature so coolant is directed through the radiator.

Kit includes

• 1 x GASO chrome thermostat housing GPP-3879 with O-ring and mounting bolts
• 1 x Dayco DT66A high flow thermostat, 82°C (180°F)

Specifications

• Brands: GASO and Dayco
• Part numbers: GPP-3879, DT66A
• Application: Ford Cleveland V8, 302 Cleveland and 351 Cleveland
• Housing: Chrome plated steel, straight up, internal O-ring seal
• Thermostat: High flow, Cleveland-specific extended bypass foot, 82°C (180°F), flange to base 20mm, vent valve 17mm, copper / brass components

Fitment

Suits the following Ford models fitted with the 302 or 351 Cleveland V8 using the factory controlled bypass cooling system. Models with other engines are not covered by this kit.

• Ford Falcon XW GT and XY GT - 351 Cleveland, Jun 1969 - Mar 1972 (other XW and XY V8 models used the Windsor engine)
• Ford Falcon XA, XB, XC, XD, XE - 302 and 351 Cleveland, Mar 1972 - Mar 1983
• Ford Fairmont XY - 351 Cleveland, Nov 1970 - Mar 1972
• Ford Fairmont XA, XB, XC, XD - 302 and 351 Cleveland, Mar 1972 - Mar 1982
• Ford Fairlane late ZC - 351 Cleveland 4V only, factory fitted late in the 1970 production run; earlier ZC V8 models used the Windsor engine
• Ford Fairlane ZD, ZF, ZG, ZH, ZJ, ZK - 302 and 351 Cleveland, Nov 1970 - Mar 1983
• Ford LTD P5, P6, FC - 351 Cleveland, Aug 1973 - Jan 1980
• Ford F100 - 302 Cleveland Jul 1974 - 1977, 351 Cleveland 1978 - 1985
• Ford F250 - 351 Cleveland, 1973 - 1985
• Ford F350 - 351 Cleveland, 1984 - 1985

Important

• The housing uses an internal O-ring and does not require a traditional paper thermostat housing gasket.
• The factory restrictor plate must be present for the thermostat bypass foot to seal against.
• Please confirm your existing housing angle, engine and cooling system configuration before ordering, particularly on modified engines or vehicles with aftermarket cooling components.