Twinspark 4 CYL 4.5

The Twinspark 4 CYL 4.5 is built around the TWINSPARK, a 1.6L-2.0L Inline-4 petrol engine with a DOHC, 16-valve, twin-plug cylinder head, running without forced induction. Alfa Romeo's distinctive twin-spark-per-cylinder four, prized for a sharp, free-revving character. This unit is supplied by Tovesageneral Motors as a tested, ready-to-fit replacement for workshops and owners who need genuine factory characteristics rather than a generic substitute, and every engine is pulled from a running donor vehicle rather than sourced blind from an unknown history. Choosing a like-for-like TWINSPARK over a cheaper mismatched substitute avoids the wiring, mounting and ECU-calibration headaches that come with swapping in a different engine family.

Key Specifications: Configuration - Inline-4, 1.6L-2.0L displacement. Valvetrain - DOHC, 16-valve, twin-plug. Fuel System - Petrol injection. Aspiration - Naturally Aspirated. Power Output - approximately 126 hp (94 kW). Torque - 165 Nm. These figures reflect the factory-rated output for the TWINSPARK in its most common calibration; individual market tunes, transmission pairing and emissions equipment can shift the exact number slightly from one production year to the next, so always cross-check against the specific model year of your vehicle.

Performance Highlights: Alfa Romeo's distinctive twin-spark-per-cylinder four, prized for a sharp, free-revving character. Expect the typical driving character of a naturally aspirated petrol inline-4: predictable, linear throttle response that builds smoothly with revs, backed by fewer high-pressure components to maintain over the engine's life than a forced-induction equivalent. As with any used engine, we recommend a full service history review along with a compression/leak-down check before installation, plus a visual inspection of the timing components, seals, mounts, and ancillaries (alternator, water pump, turbocharger where fitted) prior to fitment.

Common Applications: The TWINSPARK was factory-fitted to Alfa Romeo 145/146/156. If you are sourcing this engine for a different chassis, confirm the exact engine code stamped on the block and the wiring/ECU variant before ordering, since several body styles shared this family across multiple model years and markets. Our team can help verify fitment against your VIN before dispatch so the engine you receive matches your loom, mounts and transmission bellhousing pattern.