torque spec

[mdm365]

I need some input on torque spec for the rear main cap 80's Chevy 350 (4 bolt main block) I have got 3 different specs for this at 55,65,70.Which one is it??

Also the oil pump bolt what is the spec for this? I have got 2 different for this also.

I have 3 manuals all 3 of them are different WTF!!!


Mike

 

[toomany]

Out of my Haynes

2 bolt main caps:80ft-lbs
4 bolt main caps: (to 1976)
Innner: 70ft-lbs
Outer: 65ft-lbs
4 bolt main caps: (1977 on)
Inner: 80ft-lbs
Outer: 70ft-lbs

Oil pump pump bolt: 65ft-lbs

 

[mdm365]

Out of my Haynes

2 bolt main caps:80ft-lbs
4 bolt main caps: (to 1976)
Innner: 70ft-lbs
Outer: 65ft-lbs
4 bolt main caps: (1977 on)
Inner: 80ft-lbs
Outer: 70ft-lbs

Oil pump pump bolt: 65ft-lbs

Thanks for the reply!!
Mike

 

[4X4HIGH]

I torque all SBC main bearing caps to 65 ft/lbs regardless of 2 bolt or 4 bolt and i always torque the oil pump bolt to 50 ft/lbs.