1JZ-GTE VVTI Slim Billet Valve Covers
The most sought-after billet valve covers for the 1JZ GTE VVTI are finally here — now available in a slim version designed for builders who value both strength and a clean, modern aesthetic.
Say goodbye to cracked OEM covers. Precision CNC-machined from aerospace-grade 6061-T6 billet aluminum, these covers are engineered to handle over-torque and harsh conditions without deforming or breaking.
Using advanced 3D scanning of the original Toyota 1JZ GTE VVTI valve covers, we replicated the factory geometry and improved it with tighter tolerances, superior sealing, and an upgraded internal baffle system. The slim profile provides a compact look and added clearance but is not compatible with the OEM plastic top cover. (If you prefer to keep the OEM look, please see our OEM-style billet valve covers.)
Key Features
Slim Billet Design: Sleek low-profile design for extra clearance and a clean engine bay aesthetic.
6061-T6 Aerospace Aluminum: Machined from solid billet for maximum rigidity, heat resistance, and longevity.
AN-10 Ports with SS304 Baffles: Integrated stainless-steel baffling system with tunnel channels prevents oil escape under high boost or lateral G-forces.
Durable & Torque-Proof: Won’t crack or deform even under over-torque — unlike OEM cast covers.
Custom Finishes: Available anodized in multiple colors, or choose a custom finish on request.
Complete Kit: Includes billet oil filler cap and 2x AN10 fittings at no extra cost.
Lifetime Limited Warranty – built to last for the life of your 1JZ engine.
⚙️ Fits 1JZ GTE VVTI engines only. Made to order – lead time may apply.
📧 For custom requests or finishes, contact sales@ichiban.engineering
