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Spring Seats (Dual Spring) Hardened Valve Spring Shims for 2RZ and 3RZ Street Performer Dual Valve Springs. NOTE: Sold as a set of (16). Contact our Tech Support Line for further information at 928-575-2174. Note: Images are for...

Valve Keepers (Hardened) Hardened Valve Keepers fit all 6mm valves using stock Toyota retainers and our Pro Titanium Retainers. A must for high rpm 5VZ applications! NOTE: Sold as a set of (24). Contact our Tech Support Line for further...

OE Valve Springs These are OE Valve Springs to get your spring rate back to factory specifications. If you are looking for an upgraded spring or running anything other than the factory cams, reference Part #: 1023238 for our Street Performer Valve...

Valve Springs (Street Performer) The Street Performer Springs will control your valves up to 5,500 RPM, with a valve lift of .450". NOTE: The proper set of matched valve train components will eliminate most valve train problems. The LC Engineering...

Pro Dual Valve Springs The Pro Dual Valve Springs are a "must-have" upgrade when running cam lift over .455" or when sustaining a constant 5,000rpm or higher. With 100lbs of seat pressure and open pressure of 210lbs (at .500" lift) they will work...

Street Performer Valve Springs The proper set of matched valve train components will eliminate most valve train problems. The LC Engineering Street Performer Valve Springs fit in the stock spring pockets and install with all of the stock valve train...

Adjustable Cam Gear (Single Row Chain) Adjustable Cam Gears are the only way to change cam timing on 20R, 22R, 2RZ, and 3RZ series Toyota motors and still be accurate. Both single and double adjustable camshaft gears are available from LC Engineering...

OEM Head Bolts If you ever remove your cylinder head, you should always replace the head bolts to prolong the service life of your engine. Cylinder head bolts go through a lot of stress, even in stock engines, and retorquing used bolts can sometimes...

Aluminum Rocker Arm (OEM) After many attempts, LC Engineering has found that the trusty factory Toyota aluminum rocker arms are still the best out there. Their lightweight, durable design allows for excellent performance as well as longevity. They also...

Valve Keepers (Hardened) Hardened Valve Keepers fit all 6mm valves using stock Toyota retainers and our Pro Titanium Retainers. A must for high rpm applications! NOTE: Sold as a set of (16). Contact our Tech Support Line for further information...

OE Head Bolts LC Engineering always recommends replacing the old stretched head bolts with new ones to ensure the correct head torque. This OE head bolt set should be considered mandatory if you are replacing head gaskets on your 3VZ. NOTE: Parts...

Pro Chromoly Retainer Set (Dual Spring) For hot street motors or moderate race motors, the Chromoly retainers fit the bill nicely. Use these with our dual valve springs for proper valvetrain control up to 6,500 RPM. These retainers are substantially...