Modified BMW M10 Engine & Getrag 5-Speed Gearbox | Metric Mechanics “2400 Rally Engine” | E30 M3 Evo-Inspired | Rebuilt & Proven
Offered here is a highly modified BMW M10 inline-four engine paired with a Getrag 245 five-speed manual gearbox, meticulously rebuilt and engineered for performance, reliability, and track-ready driving. Originally rebuilt by Metric Mechanics as a “2400 Rally Engine”, this unit was acquired by the seller in October 2020 and has been installed in a 2002 BMW 2002 shop car.
This M10 incorporates rare motorsport-inspired upgrades, combining E30 M3 Evo 2.5L-style internals, precision machine work, and performance-focused components that make it ideal for restoration, rally builds, or performance conversions.
Technical Specifications
| Specification | Details |
|---|---|
| Engine Code | BMW M10 Inline-Four (Modified) |
| Displacement | 2.4 Liters (E30 M3 Evo 2.5L-style crank installed) |
| Configuration | Inline-4, Naturally Aspirated |
| Block Material | Cast Iron |
| Cylinder Head | Aluminum, SOHC, Hand-Ported |
| Valvetrain | Single Overhead Camshaft (SOHC) with dual valve springs, stainless-steel valves, revised rocker arms |
| Crankshaft | E30 M3 Evo-style 87mm forged crank |
| Camshaft | Ireland Engineering billet 302 cam |
| Timing | Single-row timing chain |
| Rod Bearings | Tri-metal |
| Valve Guides | Manganese bronze |
| Oil Pan | Baffled, with blueprinted oil pump & bronze pressure relief valve |
| Induction | Ireland Engineering intake manifold, dual Weber 40 DCOE carburetors |
| Exhaust | Ireland Engineering custom header |
| Transmission | Getrag 245 5-speed manual |
| Drivetrain | Rear-Wheel Drive |
| Mileage | ~1,700 miles (1,500 post-rebuild + ~200 installed in shop car) |
| Condition | Excellent, fully run-in and tested |
Included Components
Metric Mechanics Rebuilt M10 Engine
-
Cast-iron block with SOHC aluminum head
-
Hand-ported cylinder head
-
E30 M3 Evo 2.5L-style crank
-
Billet camshaft, dual valve springs, stainless-steel valves
Ancillary Components
-
Baffled oil pan with blueprinted pump & bronze relief valve
-
Manganese bronze valve guides, tri-metal rod bearings
-
Revised rocker arms
-
Intake manifold (Ireland Engineering)
-
Dual Weber 40 DCOE carburetors
-
Exhaust header (Ireland Engineering)
-
Distributor, oil sump, fan, and water pump
Getrag 245 5-Speed Manual Gearbox
-
Includes shifter assembly and linkage
-
Installed and tested with engine
Condition Notes
-
Rebuilt by Metric Mechanics with rally-grade components
-
~1,500 miles added post-rebuild, ~200 miles in seller’s 2002 shop car
-
Engine runs flawlessly, smooth revs, responsive throttle from Weber carbs
-
Stored indoors when not in use
-
All modifications documented with invoices and build notes
-
Ready for track, rally, or period-correct performance builds
Fitment & Applications
BMW 2002 (E10) – Performance / Rally Builds
Suitable for E21/E30 vintage swaps or modified classic projects
Perfect for track-prepped vintage racing, rally-spec builds, or custom restorations
Ideal for collectors seeking a numbers-matching style engine with modern performance upgrades
Collector & Performance Significance
This M10 “2400 Rally Engine” is a unique combination of classic BMW engineering and motorsport tuning. Metric Mechanics’ work incorporated E30 M3 Evo-style internals, hand-ported heads, and precision components to deliver a high-revving, reliable, and spirited inline-four.
Paired with the Getrag 245 manual gearbox, this package delivers authentic M10 performance with modern rally-grade reliability, making it a standout choice for BMW enthusiasts, collectors, and racers.
Metric Mechanics Modified BMW M10 Engine & Getrag 245 5-Speed Manual Gearbox — an exceptional rally-grade rebuild with ~1,700 miles, featuring E30 M3 Evo-style crank, hand-ported SOHC head, dual Weber DCOEs, and performance ancillaries.
Reviews
There are no reviews yet.