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Author Topic: SBC oil pump bolt size  (Read 10046 times)

69z28302

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SBC oil pump bolt size
« on: December 14, 2009, 01:22:48 AM »
Just need to the size and length of the bolt that holds the oil pump on a small block. I know I have one but want to be sure I use the correct one.
Thanks
CRG
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BlackoutSteve

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Re: SBC oil pump bolt size
« Reply #1 on: December 14, 2009, 11:51:59 AM »
ARP's catalog list the stud as 3.125" length for high volume. Standard volume I assume is shorter, but no detail.
(pg 50)

As a bolt, that probably equates to about a 2-5/8" - 2-3/4" UHL.

7/16 - 14  ;)
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Restoring my RHD 69 Jane in Melbourne, Australia.
http://www.usmuscle.com.au/Forum/showthread.php?t=2840

JohnZ

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Re: SBC oil pump bolt size
« Reply #2 on: December 14, 2009, 03:20:45 PM »
That's a special bolt - P/N 3892678 (7/16"-14 x 2") for small-blocks, 3860382 (7/16"-14 x 2-23/64") for big-blocks; don't use a substitute unless it's made specifically for that application.
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'69 Z/28
Fathom Green
CRG

69z28302

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Re: SBC oil pump bolt size
« Reply #3 on: December 15, 2009, 02:42:34 AM »
Thanks for the info once again JohnZ
Mike
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