BoostLine 5.591in Connecting Rod for Toyota 2JZ, ARP 625+ - TY5591-866S+

BoostLine TY5591-866S+ is a single connecting rod for Toyota 2JZ applications. Manufacturer data specifies a 5.591 in center-to-center length, 0.8661 in wrist pin diameter, 52 mm crank journal diameter. This configuration uses ARP 625+ rod bolts in a 3/8 x 1.600 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 657 g.

Key Features & Specs:

• Brand: BoostLine
• Series: BoostLine
• Product Type: Connecting Rod
• Engine Application: Toyota 2JZ
• Quantity: 1
• Material: Forged 4340 steel
• Center-to-Center Length: 5.591 in
• Wrist Pin Diameter: 0.8661 in
• Crank Journal Diameter: 52 mm
• Big End Bore: 2.1667 in
• Big End Width: 1.0189 in
• Small End Width: 1.000 in
• Rod Bolt Material: ARP 625+
• Rod Bolt Size: 3/8 x 1.600
• Rod Bolt Part Number: BT61601-625
• Weight With Bolts: 657 g
• Manufacturer Part Number: TY5591-866S+
• UPC: 00193564024411

Fitment:

• Toyota 2JZ 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.