Thread: thermostat housings...steel v alloy

I have wondered the same.

I have both ally and cast steel for the top hose fitting and ally housing ' box.'

The vent hole in the rear of the alloy housing are prone to corrosion and difficult to repair. If the box was available in steel then I would use it as it would be easier to repair.

It was somewhere between 1953 and 1955, as my friend has an original 53 motor with an alloy housing, while his 55-56 88" has a cast iron one. It may even be that it changed with the "spread-bore" mod (ie: when the oil filter was fitted). Alloy housings are what causes the through-bolts to seize in place.

Dan.
69 S2A 88" pet4 (still in disguise), 68 S2B FC pet6 (still resting quietly), plus 13 other parts/project cars (1xS2, 5xS2As, 7xS3s).

I have a 1955 and 1957 that both had Al and I prety sure they are original,
Have seen early 1600 with cast.
Dennis