The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Temperature switch for 350 SBC with modern heads

**dmjlambert** · 01-24-2017, 12:03 AM

I am still researching and considering the switch from later model trucks around 1987 and 1988. The switch would be a Wells TU64 or Standard TS-66 and those have the 3/8 threads and flat blade connector. I have written to tech support at Standard and at Classic Industries to see what they think and if they can give the temperatures at which it closes and opens. Based on vague info I read in listings for the parts, I think they close at 273 and open at 253.

01-24-2017, 12:03 AM	#21
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,572	Re: Temperature switch for 350 SBC with modern heads I am still researching and considering the switch from later model trucks around 1987 and 1988. The switch would be a Wells TU64 or Standard TS-66 and those have the 3/8 threads and flat blade connector. I have written to tech support at Standard and at Classic Industries to see what they think and if they can give the temperatures at which it closes and opens. Based on vague info I read in listings for the parts, I think they close at 273 and open at 253.