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Product Description
4-1/4" Stroke FLYWHEELS
for 1941 - 1954 Knuckle, UL & Pan Motors
Made in USA by Truett & Osborn
4 lb less “Light Weight” Flywheels for faster wind up to RPM
Balanced & blow up proof
INFO:
Bore squared x .7854 x stroke x 2 = displacement.
Conversions :
1000 cc = 61"
16.393 x ci = cc
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