ARP 154-5603 Main Stud Kit for SB FORD 351W 4-bolt ymm_23 Rocker Arm Nut Thread Size::

Rocker Arm Nut Thread Size:: 7/16-20

Racers who are using a CAN-based programmable ECU and have consumed all of the inputs in the ECUs now have a way to add more channels to a CD Dash without having to purchase multiple CAN-based devices

With the use of the optional Akrapovic Sound Kit

Rod Bolt stretch and torque values for aftermarket rods are determined by the rod manufacturer

and the tones can also be controlled from within the cockpit with addition of the optional Akrapovič Sound Kit

ARP 154-5603 Main Stud Kit for SB FORD 351W 4-bolt ymm_23 Rocker Arm Nut Thread Size::Specifications Socket Size(s) 3 4 hex, 9 16 hex, 3 16 Allen, 5 32 Allen