Range Rover Engine: Remanufactured 4.6 GEMS Long Block Engine Without Secondary Air; Set-Up With Cylinder Heads And Rockershaft (Core Charge Additional)

Product Details

An TWS Motors Exclusive!

The TWS Motors custom 4.6-liter Land Rover GEMS long block engine (Part # 9257CRHRK) includes remanufactured and installed engine heads and a new rockershaft assembly. It offers superior remanufacturing for a quality engine replacement that fits Range Rover 4.6 1995 – 1999 vehicles. This 4.6-liter GEMS engine replacement is designed to last and solve common issues found with stock Rover engines.

TWS Motors’s unique remanufacturing process corrects sleeve pressure seal issues that caused failures in a large number of original equipment engines. The blocks used in our engines are parallel-decked to the main bearing saddles, ensuring uniform compression across the entire block and more even and consistent idling. Our specially-designed and flanged sleeves ensure a positive seal between the flange cylinder liners and the engine head, preventing compression gas leaks or sleeve movement. The crankshaft is polished to ensure no imperfections. Our rebuilt engines also use a specially-manufactured, original-style cam bearing set that improves lubrication to the front of the cam shaft.

Pre-Installed Heads and Components Save Time and Money!

This engine is setup with precision-installed engine heads, new rockershaft assemblies, tappet assemblies, push arms, rods and single-use head bolts. With these components pre-installed, you'll save you time and labor with heads already torqued down to exacting specifications and no valve job required!

Note sure which style of engine you have?

Identify GEMS vs. BOSCH Engines

Identify Engines with Secondary Air Injection

This Land Rover long block engine includes the following components:

• New, Specially-designed Cam Bearings
• New Camshaft
• New Timing Chain
• New Timing Gears
• New Rod Bolts
• New Single-Use Head Bolts
• New Piston Rings
• New Flanged Sleeves
• New Crossbolt Seals
• New Main Seals
• New Main Bearings
• New Rod Bearings
• New Freeze Plugs
• New Rockershaft Assembly
• New Tappet Assemblies
• New Push Rods
• Engine Heads (2) - Remanufactured & Installed - Includes New Exhaust and Intake Valves and New Valve Springs

Warranty & Installation Information

Buy with confidence! Each 3.9, 4.0 and 4.6 remanufactured engine comes with a 12-month, unlimited mileage warranty. See our Warranty & Installation Instructions for full details.

Each engine is packed and shipped in a specially-designed rotomold crate that makes returning your old core a cinch!

($1250 core charge* additional but refunded with return of your core in TWS Motors crate!)

*Note: For a core refund you must return your old engine core complete with a set of heads in engine crate provided. Core refunds are subject to review and may be waived in part or fully if engine returned is not the same size and style engine that was purchased or if core is damaged and/or not able to be remanufactured. For more information please see our Core Refund and Information Page.

 Fits

• Range Rover 4.6 (P38) | 95 - 99