Weld On Bung & Plug Kit (Thread-In Bosch Style) If you are installing an oxygen sensor in a system that didn't originally come with one, or if you are installing a stand-alone Wideband AFR gauge, you will need this kit. It comes with the bung (18mm...

Weld-On Oxygen Sensor Flange (2-Bolt Flange Style) This flange is made from 3/8" mild steel, then tapped for M8 x 1.25 studs weld on. For the 2 bolt style O2 sensor. NOT for thread-in O2 sensors. Contact our Tech Support Line for further...

OEM Toyota 1GR Crankshaft Looking to replace that damaged crankshaft in your 1GR 4.0L 4Runner, FJ Cruiser or Tundra? LC Engineering has a new forged OEM Toyota crankshaft to get you back on the road. OEM Toyota Part #: 13401-31060 Contact...

Main Bolt Set Time to replace those main bolts while rebuilding your bottom end? No problem, we have you covered, order this complete set of (8) main bolts. Contact our Tech Support Line for further information at 928-575-2174. Note:...

Timing Belt Cover This is a new OEM replacement cover for the 5VZ V-6 timing belt. It is recommended to be replaced when you replace the timing belt. OEM Toyota Part #: 11322-62901 Contact our Tech Support Line for further information at...

Bottom End Gasket Set (95-98) This bottom end gasket kit is designed to be the complement to our head gasket kit. Using both of these kits together will supply you with all the gaskets needed to assemble a 1995 - 1998 5VZ engine. Kit contains the...

OEM Cylinder Head Bare Casting OEM replacement for 3.4L 5VZ engine equipped trucks and 4Runners. This cylinder head will fit driver or passenger side of the motor. NOTE: Does not include any valve train. You will need (2) per engine. Contact...

Street Performer Valve Springs These Street Performer valve springs are an excellent choice for a mildly built engine running naturally aspirated or low boost (0-10lbs). We recommend these for use with our Pro series or Stage 2 Camshafts steps. They...

Head Gasket Set (OEM Style MLS Head Gaskets) Head gasket failure is one of the most common problems with the Toyota engines. With a cast iron block and aluminum cylinder heads, add a little heat, and you have two entirely different metals expanding and...

Pro Main Studs ARP main studs are manufactured from 8740 Chromoly steel, heat-treated in-house to 200,000 psi Tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. All...

Teflon Heat Isolation Gasket (Throttle Body) Teflon Heat Isolator Kits keep the power-robbing heat away from the intake air. This is the ultimate for improving mileage and performance for the price. Installs between the throttle body and intake...

Exhaust Gasket Set This is a brand new Exhaust Manifold Gasket set for the 5VZ (3.4L V6). Exhaust Manifold Gasket manufactured from top-grade materials and expertly tested, this reliable product meets or exceeds stringent OE standards for quality, fit...