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The S&S Cycle V80 Long-Block Engine is a reliable, stock-height replacement designed specifically for 1984 to 1999 Evolution Big Twin models and certain custom chassis with alternator-style primary. This engine features specially machined cylinder heads that enable the use of stock length manifolds, ensuring seamless installation and optimal performance. Constructed entirely in the USA, it offers high-quality components such as S&S performance cylinder heads, a standard oil pump, flat top cast pistons, 585 valve springs, forged rocker arms, and a 508 camshaft for enhanced power and durability. This long-block engine provides a straightforward upgrade path for aging engines, delivering improved reliability and performance for your motorcycle. It is a direct bolt-in replacement that simplifies installation without the need for extensive modifications.
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