ARP 112-3601 Head Bolt Kit for AMC 258 ymm_9 Executive 1967-1970
Baker’s notes & crumb story
Description
Executive 1967-1970
the system provides measurable gains over the stock exhaust configuration and forms a solid platform for further tuning development
600 rpm when tested on the Akrapovič dyno against a Porsche 911 GT3 RS (992) with a standard stock exhaust
Especially in the area of fatigue strength
High-strength cylinder head stud kit designed for BMW S54 3
ARP 112-3601 Head Bolt Kit for AMC 258 ymm_9 Executive 1967-1970Specifications Socket Size(s) 9 16 hex