Harley-Davidson BIG Twin EVO FL 1340 [1984-1998] - Set of forged pistons Ø89.35mm - K1642

WISECO forged piston set for Harley-Davidson BIG Twin EVO FL 1340

This WISECO piston set is assigned to the engine area of the Harley-Davidson BIG Twin EVO FL 1340 from the years 1984-1998. The design combines forged pistons with standard piston compression and a compression ratio of 8.5:1. This allows the piston data that is essential for selection to be compared directly with the intended engine configuration.

Version and characteristics

• Piston Type: Forged
• Piston compression: standard
• Diameter Ø: 89.35 mm
• Oversize: +0.50
• Compression ratio: 8.5:1

The diameter of 89.35 mm and the oversize specification +0.50 characterize the specific dimensions of the piston set. The compression ratio of 8.5:1 and the standard compression are additional selection features for matching the intended engine.

Vehicle assignment

• Harley-Davidson BIG Twin EVO FL 1340, built between 1984 and 1998

Notes on selection

Before use, piston diameter, oversize and compression ratio should be compared with the machining condition and intended configuration of the engine. The dimensions 89.35 mm and +0.50 are particularly crucial for the assignment to the existing cylinder processing. The complete vehicle classification only includes the Harley-Davidson BIG Twin EVO FL 1340 within the model year range 1984-1998.