302 correct firing order?

74century

Cadet
Joined
Dec 23, 2015
Messages
23
1974 century resorter with a 302 mercruiser.The tag says 225R, 225 being the hp .The R being right hand or reverse rotation or are they the same.idk. Ihave found info that says stnd rotation is 15426378 but if it has a 351 cam it could be 13726548.Reverse rotation should be 18736245 or a different 18#^& something I cant remember.below the carb is( firing order) stamped in block but no firing order is stamped.Would there be another place where it would be stamped?
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,111
Ne mercruiser outdrive engine is reverse rotation , viewed from the flywheel ,rotation is CCW ,to the left. Viewed from the pullys, CW to the right.
BoatInfo was down for maintance, its now back up.
 
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