Brian Crower BC3931 Exhaust Valve Guides for 1993-2005 Toyota/Lexus 2JZ-GE/GTE

Vehicle Fitment

• 1993-2002 Toyota Supra MK4 (2JZ-GTE / 2JZ-GE)
• 1993-2005 Lexus GS300 (2JZ-GE)
• 2001-2005 Lexus IS300 (2JZ-GE)
• 1992-2000 Lexus SC300 (2JZ-GE)
• 1994-2000 Toyota Soarer 2JZ-GTE (Japan markets)

Features

• Premium CNC-machined from manganese silicon aluminum bronze alloy
• 6.0 mm stem diameter for exhaust guides
• Resistant to cracking and corrosion in high exhaust port temperatures
• Reduced friction for smoother valve movement under load
• Designed for high RPM and performance builds
• Full set includes all exhaust guides (12 pieces for 6 cylinders)
• OEM-style fitment; no modifications required to cylinder head
• Fully compatible with Brian Crower stainless steel exhaust valves

Specifications

• Material: Manganese Silicon Aluminum Bronze
• Guide Stem Diameter: 6.0 mm (exhaust side)
• Quantity: 12x guides (enough for all exhaust valves in a 2JZ head)
• Position: Exhaust valve guides
• Engine Compatibility: Toyota / Lexus 2JZ-GE & 2JZ-GTE inline-6 3.0 L engines

Included Components

• 12x BC3931 Exhaust Valve Guides

Product Description

The Brian Crower BC3931 Exhaust Valve Guides are engineered for the demanding 2JZ engines. Made from a high-quality bronze alloy, these guides endure extreme heat and maintain valve stability even under extended high RPM and boost. With a 6.0 mm stem diameter, the guides provide a precise fit and smooth operation in the exhaust ports.

This full exhaust side set of 12 guides covers all exhaust valves in 2JZ-GE and 2JZ-GTE heads from 1993 through 2005 (Toyota Supra, Lexus GS300, IS300, SC300, and Soarer where applicable). They are OEM dimension-compatible, so installation requires only proper guide pressing and lubrication without further head modifications.

Ideal for rebuilds, performance upgrades, or replacing worn exhaust guides, the BC3931 ensures long-term reliability, better heat dissipation, and tighter exhaust valve performance. Fitment confirmed through 2005; 2025 coverage unconfirmed beyond listed models.