ARP High Performance 8740 Connecting Rod Bolt Kit (AE86 Corolla / AW11 MR2 / AE92 Corolla)

ARP High Performance 8740 Connecting Rod Bolt Kit

For 1983–1987 Toyota Corolla AE86, 1984–1989 Toyota MR2 AW11, and 1987–1991 Toyota Corolla AE92 coupe equipped with original connecting rods accepting M9 press-fit bolts.

Overview

The ARP High Performance Connecting Rod Bolt Kit is a heavy-duty fastener upgrade for 1983–1987 JDM Corolla AE86, 1984–1987 U.S.-Market Corolla AE86, 1984–1989 Toyota MR2 AW11, and 1987–1991 JDM Toyota Corolla AE92 coupes and 1988–1991 U.S.-Market Corolla AE92 coupes. It fits their supported original 4A-GE, 4A-GZE, 4A-C, 4A-F and 4A-FE connecting rods, not every aftermarket rod sold for those engines.

The complete eight-bolt set services four connecting rods and includes matching fastening nuts and ARP Ultra-Torque assembly lubricant. Heat-treated 8740 chromoly steel and a large under-head radius provide increased fastener strength for stock rebuilds and performance engine builds.

Connecting-rod machine work is required. The rod’s bolt-hole chamfer must accommodate the fastener’s under-head radius.

Key Features

• High Performance Series connecting rod bolt kit
• Premium 8740 chromoly steel construction
• Heat-treated for approximately 200,000 psi tensile strength
• M9 connecting rod bolt application
• Complete 8-bolt set for a four-cylinder engine
• For the original 4A-GE / 4A-GZE / 4A-C / 4A-F / 4A-FE connecting rods listed below
• Large under-head radius designed to improve fastener strength
• Suitable for stock rebuild and performance engine applications

Connecting Rod Fastener Choice

These bolts suit rebuilds that retain the supported original-style connecting rods. They are a press-fit fastener upgrade, not a replacement connecting-rod set. Aftermarket rods may use a different bolt design, diameter or fastening arrangement and require their own specified hardware.

Connecting-rod machine work is required for this upgrade. A shared bolt does not make different rods, pistons or crankshafts interchangeable.

Vehicle Fitment

Toyota Corolla — AE86

• 1983–1987: Trueno (JDM) / 4A-GE / 4A-GEU 16V.
• 1983–1987: Levin (JDM) / 4A-GE / 4A-GEU 16V.
• 1985–1987: GT-S (U.S.-Market) / 4A-GE 16V.
• 1984–1987: SR5 / Sport DX (U.S.-Market) / 4A-C.

Toyota MR2 — AW11 / MK1

• 1984–1989: JDM / naturally aspirated 4A-GE 16V.
• 1985–1989: U.S.-Market / naturally aspirated 4A-GE 16V.
• 1986–1989: JDM Supercharged / 4A-GZE.
• 1988–1989: U.S.-Market Supercharged / 4A-GZE.

Toyota Corolla / Sprinter — AE92 — Coupe

• 1987–1991: Corolla Levin / Sprinter Trueno (JDM) / 4A-GE 16V
• 1987–1991: Corolla Levin / Sprinter Trueno GT-Z (JDM) / 4A-GZE
• 1988–1991: GT-S coupe (U.S.-Market) / 4A-GE 16V.
• 1988–1989: SR5 coupe (U.S.-Market) / 4A-F.
• 1990–1991: SR5 coupe (U.S.-Market) / 4A-FE.

Fitment Notes

• For the specified factory-style connecting rods accepting M9 press-fit bolts. Engine identity alone does not establish compatibility with aftermarket rods.
• Connecting-rod resizing is required for this fastener upgrade.
• The bolt-hole chamfer must clear the larger under-head radius. Proper connecting-rod machine work is part of this upgrade.
• Different original rod and crankshaft configurations can share this bolt interface without making those larger components interchangeable.

Product Specifications

Brand: ARP
Series: High Performance
Product Type: Connecting Rod Bolt Kit
Engine Applications: Toyota 4A-GE / 4A-GZE / 4A-C / 4A-F / 4A-FE
Bolt Size: M9
Material: 8740 Chromoly Steel
Tensile Strength: Approximately 200,000 psi
Installation Type: Press-Fit
Quantity: 8 Connecting Rod Bolts

What's Included

• (8) ARP High Performance 8740 Connecting Rod Bolts
• (8) Matching fastening nuts
• ARP Ultra-Torque fastener assembly lubricant