Thermostat housing cover - GLM13710

Thermostat housing cover with a two hose outlet to fit GM big block, with bolt pattern 80 deg, from crank shaft center line. Thermostat Housing Mercruiser 47442A1 MCM/MIE GM V6-V8 (452 & 502 cid) & Hi Perf. 454/482 cid (Off-set Bolt pattern) The thermostat housing is used to guard the thermostat, from overheating. 185 GM (229) 1983-1984 6330183-6919655 325 GM MCM / M IE 1969-1972 2278747-3780449 330 GM MCM / M IE 1977-1987 4623115-0B816540 330 GM MCM / M IE 1977-1987 4623115-0B816540 340 / 7.4L M IE 1981-1992 5889914-0D715493 340 / 7.4L M IE 1981-1992 5889914-0D715493 7.4L GM 1988-1991 0B771113-0D603117 7.4L M IE 1989-1994 0C391564-0D715493 7.4 L M IE 1989-1994 0C391564-0F349999 7.4 L M IE 1994-1996 0D715494-0F820141 7.4 L M IE 1996-1997 0F820142-0K999999 370 GM 1978-1985 4179554-6721527 370 GM 1985-1987 6721528-0B714586 400 GM 1980-1986 4179554-0B457644 425 GM 1990-1993 0A398941-0D937011 440 GM 1983-1986 4179554-0B485220 454 MAG GM 1986-1992 0A631894-0D805068 460 GM 1983-1986 4179554-6181046 465 GM 1990-1994 0C849992-0F213244