Brian Crower BC3312 33 mm +1 mm Intake Valves for 1JZ-GE/GTE

Vehicle Fitment

• Toyota 1JZ-GE / 1JZ-GTE engines (all years/trims with these engines) - fitment confirmed via Brian Crower fitment documentation

Features

• Premium one-piece stainless steel intake valves with friction-welded Stellite tip
• Heat-resistant stainless construction built for high-boost and high-RPM durability
• Undercut stem design reduces reciprocating mass for enhanced rev potential
• Swirl-polished valve head finish improves airflow efficiency
• Oversized +1 mm head diameter (33 mm vs OEM 32 mm) for better breathing
• Complete kit includes 12 valves to replace all intake valves on 6-cylinder engines
• Precision CNC machining ensures tight OEM-level tolerances
• Compatible with both naturally aspirated and forced-induction 1JZ applications

Specifications

• Head Diameter: 33.0 mm (+1 mm over OEM)
• Stem Diameter: 5.98 mm
• Overall Length: 97.6 mm
• Material: Heat-resistant stainless steel
• Valve Type: Intake, dished face

Included Components

• 12x intake valves (33 mm, +1 mm)

Product Description

The Brian Crower BC3312 oversized intake valve kit is specifically designed for Toyota's 1JZ-GE and 1JZ-GTE engines. Each valve is a fully machined, single-piece stainless steel unit featuring a friction-welded Stellite tip for enhanced heat resistance and extended high-RPM durability.

With a lightweight undercut stem and swirl-polished head finish, these intake valves optimize flow dynamics and reduce reciprocating mass - boosting rev ceiling and efficiency. The +1 mm increase in head diameter (33 mm vs stock 32 mm) provides a measurable improvement in airflow and throttle response.

This complete set of 12 intake valves offers a full replacement solution for all cylinders in 6-cylinder 1JZ engines. Fitment is validated through the latest Brian Crower official charts. Whether your build is naturally aspirated or turbocharged, these valves offer reliable performance under demanding conditions.