403/455 comparisons
#1
403/455 comparisons
Is there anything in common between a 403 and a 455 or 350 Olds motor? I saw an ad for a blown 403 I could get cheap. Is there anything that can be used on a 455? Is a 403 a big or small block? Thanks
#3
The 403 is a small block, by the definition of the deck height which corresponds to the 3.385" stroke used on all the similar small blocks.
Sorry, but a "blown" 403 isn't worth much, unless by "blown" you mean it has been fitted with a supercharger.
Parts common to a BBO
timing cover
oil pump
nuts & bolts
rocker covers
Distributor
Balancer
flexplate
oil filter adapter
starter
oil pan
Parts that may be worth extracting if the "blow" was not too bad:
403 XC rods
Sorry, but a "blown" 403 isn't worth much, unless by "blown" you mean it has been fitted with a supercharger.
Parts common to a BBO
timing cover
oil pump
nuts & bolts
rocker covers
Distributor
Balancer
flexplate
oil filter adapter
starter
oil pan
Parts that may be worth extracting if the "blow" was not too bad:
403 XC rods
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88hurstolds
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January 20th, 2020 11:39 AM