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The S&S Cycle V80 Long-Block Engine (Part Number 310-0233) is a reliable, direct bolt-in replacement designed for 1984-1999 Evolution Big Twin motorcycles. This stock-height engine features specially machined cylinder heads to accommodate stock length manifolds, ensuring compatibility and ease of installation. Crafted in the USA, it offers a durable and high-performance upgrade for aging engines, providing enhanced power and reliability. The engine includes S&S performance cylinder heads, a standard oil pump, flat top cast pistons, S&S 585 valve springs, forged rocker arms, and a 508 camshaft, all assembled to meet rigorous quality standards. Its wrinkle black finish adds a sleek aesthetic appeal suitable for custom chassis builds. The engine is EFI compatible, but calibration through an aftermarket module or add-on tuner is required, and it uses the existing carburetor with rejetting necessary. Fuel and ignition systems are not included, allowing for customized setup based on rider preferences. This long-block engine is an ideal upgrade for enthusiasts seeking improved performance and dependability in their Evolution Big Twin or custom chassis motorcycle, offering a straightforward replacement that maintains factory compatibility while delivering notable enhancements.
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