11mm x 1.5, .880 underhead length
These premium-grade ARP Pro Series flexplate bolts are far superior to OEM hardware. Forged from aerospace alloy and heat-treated prior to thread rolling and machining, they feature an exclusive, flat 12-point head design and a larger-than-stock shank diameter for increased strength and improved register.
This is a set of 6 bolts for use with GM LS 6-bolt crankshafts.
