Designed as a direct replacement for the OEM oil pump gears, these billet 4340 steel gears are engineered for performance and reliability. The outer gear measures approximately 77mm in diameter and 15mm in thickness. The factory sintered gears—made from compressed powdered metal—are known to fail, even with mild engine modifications. They were never intended to withstand high horsepower or high RPM conditions. HSE gears are precision-machined from high-strength 4340 billet steel and feature the N1-spec 'wave' profile for increased oil flow. Each set undergoes isotropic polishing for a smooth, low-friction finish, ensuring consistent performance under extreme conditions. Proven in thousands of applications, including engines producing over 1000 horsepower, HSE billet gears offer a significant upgrade in strength and reliability. By minimizing the risk of oil pump failure, these gears help protect critical engine components such as pistons, valves, and camshafts from catastrophic damage.

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Arp Main stud kit to suit TB48de Kit comes with Studs, washers and nuts.Tested to over 2500HP Block will need to be tunnel bored for correct fitment.  IN STOCK IN AUSTRALIA

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Ross Racing Forged Pistons to suit Nissan TB48 These are a custom piston made by Ross for Spool Imports. Pistons are available in: Compression Ratio: 9.0:1 Bore Sizes: +0.5mm Pistons come with rings, gudgeon pins and pin locks Forged 2618 Tool Steel Pins Ross Racing Pistons: All ROSS Racing Pistons (since 1985) have been forged from 2618 billet bar stock and have been heat treated and aged to a T61 condition (2618-T61). 2618-T61 is the material that is used when fatigue resistance and durability are of prime importance by all premium racing piston manufacturers. This material has less than 1% silicon particulate content. High silicon content pistons (forged from 4032 or MS75) will not stand up to the most extreme stress placed on many racing pistons. If a crack starts to form in a high silicon piston it will continue until the piston experiences a catastrophic failure. Simply stated, adding sand to the aluminum only makes it more brittle. In the rare instance of a 2618-T61 piston cracking, the crack will continue to an area where the stress is not as great and will then stop. Another advantage of 2618-T61 over the high silicon pistons is the ability to keep its shape under extreme pressure and high RPM's. "Skirt Shrinking" is not a problem with ROSS Racing Pistons.

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All Spool Conrods come standard with ARP 2000 Fasteners. These are a direct fit Conrod for all Nissan Patrol TB48 Engines. ARP2000 7/16 Fasteners These conrods feature: High tensile 4340 forged steel 2 Piece forging Hardness of HRC36-42 Dowelled caps for precision alignment X-RAY & Sonic tested Quenching and heat treated Shot peened 100% Magnafluxed Weight Matched Sets + - 1 gram Vacuum degassed to remove impurities. Weight: 1006g (with bolts) No bearings are included.

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Suitable for TB48de engine. Rods are 4340 Forged and come with 7/16 ARP Rod bolts Grade Tested (X-Ray & Sonic) 4340 Billet Steel ONE Piece Forging  Quenched and Heat Treated Shot Peen Hardness Treated (38HRC) Doweled Cap for Superior Alignment Quality ARP 2000 Series Bolts Optional ARP Custom Age 625 Plus Series Bolts Silicone Bronze Pin End Bushes Balanced to Within a +/- 1 Gram Tolerance Per Set Bore Diameters to Within +/- 0.0001" Tolerance Sunnen Honing Machines Along with Sunnen Diamond Honing Tooling are used for both Big & Pin End Machining and Sizing 100% CNC Profiled 100% CNC Drilled & Tapped

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**BALANCERS ARE ORDERED DIRECT FROM THE UAE DUE TO SUPPLY ISSUES WITH ATI IN AUS CURRENTLY** For Nissan Patrol TB48DE 6-cylinder engines Dampens torsional crankshaft vibrations at all RPM levels Protects against engine harmonics Laser-etched timing marks SFI 18.1 Certified for competition use Made in America Specs Shell Material: Aluminum Hub Material: Steel Inertia Weight: 3 ring

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Nitto Pistons are made by CP in the USA. Come with upgraded wrist pins made out of 9310 material. Custom compression and bore size is available to order, please contact us for any questions or orders. (Piston rings included in price) Material: 2618 Size: 100mm Bore/ 0.020” oversize

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