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Old December 19th, 2016, 04:13 PM
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403 bearing clearances
Can anyone tell me the rod and main bearing clearance specs as well as endplay spec for a 403? Ive spent awhile looking and cant find anything specific to this engine. Thanks
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Old December 20th, 2016, 07:13 AM
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Originally Posted by Napoleon1991
Can anyone tell me the rod and main bearing clearance specs as well as endplay spec for a 403? Ive spent awhile looking and cant find anything specific to this engine. Thanks
Factory specs should be the same as for a 350 - it's the same crank.
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Old December 20th, 2016, 07:49 AM
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Stock or a performance build?
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Old December 20th, 2016, 08:42 AM
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I have 1978 Chassis Service Manual; if all else fails, I may be able to copy a few pages. As Joe says, same for 350 and curiously same for 260.
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Old December 20th, 2016, 09:30 AM
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Originally Posted by joe_padavano
Factory specs should be the same as for a 350 - it's the same crank.
Thats what i thought. Just wanted to be sure. Thanks
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Old December 20th, 2016, 10:46 AM
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Originally Posted by Oldcoyote
and curiously same for 260.
Also the same crank. Every single SBO used the same 3.385" stroke. Except for the diesels, all used the same rod and main bearings also.
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