Boats For Sale:
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DPUK 
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Joined: January-01-2018 Location: Oxford UK Status: Offline Points: 50 |
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 Topic: just a matter of threadsPosted: February-14-2018 at 6:31pm |
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can any body tell me what thread pattern would be used on my 1997 sn 196, we have been metric on this side of the pond for years, I know you all use the old imperial size wrenches and I presume unf and unc threads, I guess I am just being lazy as I could get a thread gauge from somewhere but I am one of you guys will be able to inform me (as usual)
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Barefoot Gramp's
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DPUK
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Joined: January-01-2018 Location: Oxford UK Status: Offline Points: 50 |
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Posted: February-14-2018 at 6:33pm |
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sorry I assume the same applies to the motors, we have a 350 chevy and a 351 ford.
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Barefoot Gramp's
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 10637 |
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Posted: February-14-2018 at 7:08pm |
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You said it, UNC and UNF. (and a few NPT)
It seems like a pretty open ended question If you want to know something like every bolt on a 351 or 350, it's time to pull out that thread gauge 
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Duane in Indy
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Joined: October-26-2015 Location: Indiana Status: Offline Points: 1578 |
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Posted: February-14-2018 at 8:02pm |
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You won't find any of these on SBF or SBC engines
British Standard Whitworth (BSW) is an imperial-unit-based screw thread standard. Sir Joseph Whitworth proposed this thread in 1841. This was the first standardised thread form. But you will most likely find it handy to have both Fractional and Metric wrenches on hand. Had to cut a few BSW threads in my working days. Real PITA cause I was not set up to do them. |
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Keep it as original as YOU want it
1978 Mustang (modified) |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Posted: February-14-2018 at 9:59pm |
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Duane,
I'm still hanging onto my Whitworth tools. You never know when the mythical RR marinized engine out of Marilyn Monroe's Debonair will show up. BTW, I always enjoyed using them on the BSW system. If you had a 3/8 bolt, you grabbed a 3/8 wrench and not a 9/16!!!
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