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Re: Fuel Tank Selector Valve mounting bolt size
1/2" hex for the socket / wrench size . bolt has american grading markings on it not metric .
5/16" x 18 fine thread just under 1" full length but pointed end with 3/4 threads usable . has a built in cone shaped locking teeth edge flat washer with a o.d. of about 3/4" that cant be removed from the bolt .
i have 2 switcher valve here in the shop . the bolt threads in both the 83 and 87 c-10 trucks . 83 was 6.2 diesel 87 was tbi 305 gas . both switcher valves have captured nuts of threaded body's on them .
i love ratchet wrenches for tight areas .
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77-k30lb BIG truck build .
87-k30lb budget beater build .
85-k30lb the plow machine build .
85-c10sb summer fun toy .
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HOLLEY SNIPER efi = worst case of p.i.t.a i ever had .
EDELBROCK pro flo 4 = best deal going so far . love my setup works great.
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