Pushrod cover middle (4 used): 79-21 B

a spoke-check is advised to insure spoke tension is still correct

OEM 17964-99 (front) and 17966-99 (rear) covers

Fits: > L66-E81 4-speed Big Twin

KPMI BLACK DIAMOND VALVE, EXH sving Pushrod cover middle (4 used):Standard size replacement. Dimensions: 1. 750" head dia. x 0. 3760" stem dia. x 3. 820" Overall length. KPMI valves are manufactured in the U. S. A. by a dedicated staff and personnel with hands on experience in stock and high performance. Quality materials and the latest CNC and 3 D computer modelling equipment make sure each and every Kibblewhite Precision Machining valve train component is top of the line. All Black Diamond valves are one piece