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Author Topic: rear main cap torque specs.  (Read 14179 times)

Offline 355shortbed

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rear main cap torque specs.
« on: February 03, 2009, 04:53:14 pm »
anybody know off hand the torque for rear main cap bolts and oil pump bolt, should be in 40's i believe????
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Offline eventhorizon66

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Re: rear main cap torque specs.
« Reply #1 on: February 03, 2009, 05:01:51 pm »
Go with whatever Vile says  ;)
« Last Edit: February 03, 2009, 08:49:16 pm by eventhorizon66 »
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'85 C10 SWB 350 700R4 TKO600

Offline VileZambonie

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Re: rear main cap torque specs.
« Reply #2 on: February 03, 2009, 05:36:31 pm »
What engine are you talking about?
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Offline 355shortbed

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Re: rear main cap torque specs.
« Reply #3 on: February 03, 2009, 06:22:41 pm »
Oh whoops haha, 350
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Offline VileZambonie

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Re: rear main cap torque specs.
« Reply #4 on: February 03, 2009, 06:34:25 pm »
80lb-ft for the main cap and 65lb-ft for the oil pump bolt.
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              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 355shortbed

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Re: rear main cap torque specs.
« Reply #5 on: February 03, 2009, 06:36:44 pm »
ok thanks alot
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Offline frogman68

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Re: rear main cap torque specs.
« Reply #6 on: February 03, 2009, 06:43:45 pm »
 is it 2 bolt or 4 bolt mains?

4 bolt inners are 70 ft lbs outer 65 ft lbs up to 76

or 77 and up
inners are 80 ft lbs and outers 70 ft lbs
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Offline 1976Scottsdale

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Re: rear main cap torque specs.
« Reply #7 on: February 04, 2009, 08:45:32 pm »
Also 80 on cap bolts and 65 on oil pump as the rear is always a 2 bolt on a small block. Just make sure the cap is all the way down before you torque, have heard that pulling the cap down with the bolts is bad, but then again this post is way late and I am sure you have already completed the torquing of said cap.
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