ARP 291-5801 Main Stud Kit for Pontiac 4-cylinder Super Duty-cast block ymm_28 Mandatory Tail Pipe Set TP-T/S/17/H

Mandatory Tail Pipe Set TP-T/S/17/H must be ordered separately

AEM Tru-Time Adjustable Camshaft Gears increase horsepower and torque without having to change the camshaft(s) and are must-have items for engines that are milled

100˝ Thread Size M9 x 1

you may choose between conventional hex style or the space-saving 12-point nuts

IMPORTANT TECH NOTE: It is highly advisable to determine what the optimum rocker arm stud length is for your particular application

ARP 291-5801 Main Stud Kit for Pontiac 4-cylinder Super Duty-cast block ymm_28 Mandatory Tail Pipe Set TP-T/S/17/HSpecifications Socket Size(s) 9 16 12pt, 3 16 Allen