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Yamaha 350 R5 (1973-75) 2 Stroke Wossner Forged Piston Kit  96.19 
Ex Tax of 20% 

Overview

Wössner are regarded by Europe’s leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins.

 

Specification

Specifiction

Technical information is sourced from Wossner's latest catalogue

Part Number 8221
Engine Type 350 R5 - 347cc
OE Bore Size 63.93mm
Bore Sizes Available

63.93mm

64.43mm

64.68mm

64.93mm

65.18mm

65.43mm

65.93mm

Stroke 54mm
Comp. Height 36mm

 

Available Options:
K8221-2 Size Options:
63.93mm - K8221DA-2 
64.18mm - K8221D025-2 
64.43mm - K8221D050-2 
64.68mm - K8221D075-2 
64.93mm - K8221D100-2 
65.18mm - K8221D125-2 
65.43mm - K8221D150-2 
65.93mm - K8221D200-2 
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