Black diamond exhaust valve is 1/16" oversize.

VT No: 11-6108
Black diamond exhaust valve is 1/16" oversize.
Fits:
XL 1957-1985
UOM: 1 - EA
Country of Origin: USA

Manufacturer: Precision Machine
2018 Catalog pages: 853
Measurements

Head Diameter: 1.630"

Stem Diameter: .3384"

Overall Length: 3.510"

Tulip: 29?

2017 Catalog Page: 853

V-Twin Manufacturing Part Number: 11-6108
Manufacturer: Precision Machine
Manufacturer Part Number: 20-4197-1

Harley-Davidson & Indian OEM Cross Reference Part Numbers:

900/1000cc Black Diamond Stem Exhaust Valve 11-6108

Qty