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Thread size inquiry
Posted: Wed Jan 25, 2023 6:45 am
by Fairlady5150
Hello all. Wondering if anybody knows the thread size for the block drain valve on an early / 3-main 1600 block? Also looking for thread sizes to plug the coolant line inlet and outlet on the intake manifold.
Re: Thread size inquiry
Posted: Wed Jan 25, 2023 8:08 am
by keith0alan
I don't remember the exact sizes but they are BSPT and not common hardware store pipe threads. Check with your local hydraulic shop rather than plumbing store.
Re: Thread size inquiry
Posted: Wed Jan 25, 2023 9:10 am
by Solex68
1/8 X 28 BSPT
Re: Thread size inquiry
Posted: Wed Jan 25, 2023 9:37 am
by david premo
I think it’s 1/4 BSPT actually. The 1/8 BSPT are the ones along the oil gallery at the front of the 1600 and 2000. BSPT not only has a different thread count, the shape of the thread is different as well. As it’s a 1500 I’m not 100% sure, it could even be 3/8 BSPT.
Dave
Re: Thread size inquiry
Posted: Wed Jan 25, 2023 11:59 am
by Fairlady5150
Thanks all!