BoostLine 5.708in Connecting Rod Set for BMW N54, ARP 625+ - BM5708-866+

BoostLine BM5708-866+ is a set of 6 connecting rods for BMW N54 applications. Manufacturer data specifies a 5.708 in center-to-center length, 0.866 in wrist pin diameter, 50.00 mm crank journal diameter. This configuration uses ARP 625+ rod bolts in a 3/8 x 1.500 size. BoostLine standard-series rods use forged 4340 steel and the brand’s patented three-pocket design for demanding performance engine combinations. Listed weight with bolts is 604 g.

Key Features & Specs:

• Brand: BoostLine
• Series: BoostLine
• Product Type: Connecting Rod Set
• Engine Application: BMW N54
• Quantity: 6
• Material: Forged 4340 steel
• Center-to-Center Length: 5.708 in
• Wrist Pin Diameter: 0.866 in
• Crank Journal Diameter: 50.00 mm
• Big End Bore: 2.110 in
• Big End Width: 0.822 in
• Small End Width: 0.8268 in
• Rod Bolt Material: ARP 625+
• Rod Bolt Size: 3/8 x 1.500
• Rod Bolt Part Number: BT61501-625
• Weight With Bolts: 604 g
• Manufacturer Part Number: BM5708-866+
• UPC: 00193564265838

Fitment:

• BMW N54 engine applications

Series Description: BoostLine connecting rods are forged from 4340 steel and use the brand’s patented three-pocket beam design, developed to support high cylinder-pressure performance applications while controlling rotating mass. The standard BoostLine series is positioned for demanding forced-induction, nitrous, street-performance, and racing combinations. Application-specific ARP fasteners and dimensional CMM inspection are part of the product program; exact dimensions and bolt grade vary by part number.