8103-16-Z Tappet block mount kit. OEM style, zinc

This Colony tappet block mount kit is a precision OEM reproduction designed for those who demand accuracy in their engine builds. The kit features 1/4"-24 threaded bolts with the correct slotted, tapered heads and includes the original style external lock washers. These fasteners are a direct replacement for OEM bolt 2329 and washer 7231. This kit fits 1936 to early 1953 Big Twin models as well as 1937 to 1973 45" Flathead models. Using the correct tapered hardware is crucial for properly centering and securing the tappet guides in the crankcase. This zinc-plated set provides both the authentic look and the mechanical reliability required for vintage Harley-Davidson engines and is sold as a kit.