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#1
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Olds 403 Torque Specs
The other day my 403 blew a connecting rod (out through the oilpan) So now I'm rebuilding my engine with all the preformance parts I was waiting to put in.
I'm replacing the following parts: Oilpan (Chrome) Oil Pump (Melling High Volume) Cranshaft (reground stock) Main Bearings Rod Bearings Connecting Rods (refinished stock) Pistons & Rings (Clevite 8.5 comp.) Intake Manifold (Edelbrock 3711) Camshaft (Melling MTO-1 / Edelbrock 3712) Pushrods (Comp Cams) Water neck (Chrome) Valve Covers (Chrome) All Gaskets and Bolts (ARP Grade 8 or above) Once I verify that the engine works fine I'll put on a set of Olds 350 heads '7' casting, do the ignition, rebuild the carb to match, and swap the 350 out for a beefed up one. Anyway, point being does anyone know the torque specs for the 403 or know where I can get them. Should be the same for the entire Small Block Olds line (260, 307, 350, 403) I got a base Idea from the Folowing Sites: http://www.boxwrench.net/specs_index.htm Chevy and Pontiac specs http://www.oldsmobility.com/torquespecs.htm Earlier Oldsmobile Engine specs '64-71 Can anyone confirm any of these figures or tell me the right numbers? Thanks for your time guys, any help would be greatly appreciated, Gene. |
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#2
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Re: Olds 403 Torque Specs
Mains, 80 lbs. (1-4), 120 lbs. (5). Rods, 42 lbs. Heads 95 lbs. Intake/exhaust, 28 lbs. Anything else?
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#3
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Re: Olds 403 Torque Specs
that's all that comes to mind; thank you great Omniscient one.
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#4
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Re: Olds 403 Torque Specs
Nothing "great" here. Just a guy trying to get accurate information out there!
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