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EarlyBay Forums
Technical
Engines and interior help
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<blockquote data-quote="BJ1" data-source="post: 400464" data-attributes="member: 355"><p>Just a word of warning. Never put a new uprated top end on an old engine. Chances are that you will destroy the bearings within a few months. Unless you know that the bottom end is relatively new, always split the case and renew the mains, big ends and camshaft bearings. And don't bother fitting 1641 barrels and pistons - the power increase is negligible but the engine will run hotter. If you want more grunt fit 1776 B & Ps. </p><p></p><p>Laurie builds excellent engines BTW!</p></blockquote><p></p>
[QUOTE="BJ1, post: 400464, member: 355"] Just a word of warning. Never put a new uprated top end on an old engine. Chances are that you will destroy the bearings within a few months. Unless you know that the bottom end is relatively new, always split the case and renew the mains, big ends and camshaft bearings. And don't bother fitting 1641 barrels and pistons - the power increase is negligible but the engine will run hotter. If you want more grunt fit 1776 B & Ps. Laurie builds excellent engines BTW! [/QUOTE]
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