Thermostat housing on a LD 340 intake

went out to double check - 3/8" bolt drops right in - 1/2" bolt will not start. 7/16" bolt threads smoothly. Other intakes I have - all 3/8". T stat area a little rough - don't laugh @ this old intake - it can clean up fine. Not likely I'll find a housing that takes a 7/16" bolt. I bought 2 intakes - performer rpm & this LD 340 from a member here - can't remember who.

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