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Head Stud Kit High Performance 8740 Series 12Point HeadFits only the 54C block with M12 head studs.

Our 2JZ billet caps are machined from pure 4140 chromoly steel. Engine will need to be line bored/honed and also machining for the thrust washer once these are installed. We recommend using ARP main studs in conjunction with our billet caps. For extreme applications we recommend using ARP L19 studs. ...

Mazworx Shimless SR20VE Intake and Exhaust Valves are recommended for High RPM, High Power applications, or where the rev limiter is constantly hit. Retainers require machining. Comes in either standard or oversized.   P12 heads are required to change to 6mm guides. Lashing is done by tipping of the valve. Comes as a complete set of 8 Intake Valves and 8 Inconel Exhaust Valves.

Here at Mazworx, we can prep your block to your specifications. Utilizing our CNC capabilities and state-of-the-art equipment, you can ensure that the machining process is done properly.  This is a ready-to-assemble sleeved block that has all the necessary machine work done and all the clearances checked. Each sleeved block will start with the following: Labor:DisassembleHot Tank/CleanSand Blast BlockSleeve Install, Darton MIDResize CylindersUse Torque Plate During HoningStep DeckResize...

Complete Timing Chain kit for the Nissan SR20. This kit uses Mazworx and OEM components for superior quality and reliability. We use this exact same kit in our engine builds.  Comes standard with the Mazworx timing chain squirter. ...