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1555 gas engine

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Northern 77
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Joined: 27 Dec 2012
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PostPosted: Thu Dec 27, 2012 3:23 pm    Post subject: 1555 gas engine Reply to specific post Reply with quote

Just curious what differences is between a 1555 engine and the 77 or 770! Does it have a pressure oiled crank? And is the head and block any better? Would a 77 crank interchange with it? Basically I am just curious if this was a better starting spot for building a puller!
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J. Schwiebert

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PostPosted: Thu Dec 27, 2012 3:56 pm    Post subject: Re: 1555 gas engine Reply to specific post Reply with quote

You are comparing a lot of variables here. It is not pressure lubed, however the 15550/55 & late 770 blocks which are the same are much stronger than a plain old 77 block. They also have larger valves than a 77 and 550 valves would make them larger yet.
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