ARP Pro Series Connecting Rod Bolt Kit - 7/16 in Bolt - 1.85 in Long - ARP2000 - Manley - Set of 16 GBDM2 An adjustable mechanical advance mechanism

An adjustable mechanical advance mechanism is mounted on top of the shaft

/Doug Nash 5 Speed

Ford EcoBoost V6

1974-1980 Fiat 124

ARP Pro Series Connecting Rod Bolt Kit - 7/16 in Bolt - 1.85 in Long - ARP2000 - Manley - Set of 16 GBDM2 An adjustable mechanical advance mechanismARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Connecting Rod Bolt Kit Pro