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#1 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Bolt sizes help needed
Can anyone tell me precisely what size bolts are needed to mount the power steering pump bracket (cast type) to the two holes on the front of a 69 350 sbc short water pump engine. I need size, thread, length and grade as I need to order them from a specialist engineering supplier.
You used a different set of standards in the US compared to us in the UK in the 1960's ( we used AF rather than UNC/UNF) and I can't just walk into any old hardware store over here and buy these bolts. I am replacing my power steering pump with the correct one rather than the bodged on later pump that was on the previously and the PO used shorter bolts to mount his home made brackets. Thanks ![]()
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#2 |
CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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They are 3/8 x 16 UNC. Grade 5 or better Not sure about the lenght. But you could measure the bracket to get that
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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#3 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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That's great, thanks for the info. I just wanted to make sure on the length, I have measured the bracket but didn't want to get them too long as they are blind holes.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#4 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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All sorted now. I rang my local egineering suppliers and the very nice man had some in stock and whats more was an American car enthusiast too and let me have them free of charge. He used to own a early 70's T-Bird. Now to get the old pulleys and odd brackets off....if it would just stop raining for long enough!
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#5 |
Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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Funny, we have the same problem with metric bolts over here.....lol
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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