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HiFlow5 0 · 11-22-2002, 08:46 AM

Nope not 3/8ths. The thread size of the thermactor holes in the back of the heads are 5/8" thread and about 1" long.

I seem to remember a thread exactly like this one last week.

11-22-2002, 08:46 AM	#11
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	Nope not 3/8ths. The thread size of the thermactor holes in the back of the heads are 5/8" thread and about 1" long. I seem to remember a thread exactly like this one last week. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust