The Volvo B230GT is a 2,316 cc, inline‑four naturally aspirated petrol engine produced between 1983 and 1985. It features a cast iron block, aluminum head, and overhead camshaft (OHC) driven by a timing belt. This high-compression variant was engineered for maximum power output in Volvo's performance sedans, utilizing twin carburettors for enhanced airflow.
Fitted exclusively to the limited-edition Volvo 242/244/245 GT, the B230GT was designed for spirited acceleration and driver engagement, marking the pinnacle of Volvo's naturally aspirated four-cylinder development. Emissions compliance was managed through precise carburettor tuning and an exhaust catalyst, meeting Euro 1 standards for its production era.
One documented service consideration is the complexity of maintaining and synchronizing the twin carburettor system, which requires specialized tools and expertise, as noted in Volvo Service Bulletin #SB-83-09. The engine was succeeded by the fuel-injected B230F for improved emissions compliance and drivability.
Production years 1983–1985 meet Euro 1 emissions standards (VCA UK Type Approval applicable for registered imports).
The Volvo B230GT is a 2,316 cc inline‑four naturally aspirated petrol engine engineered for performance sedans and wagons (1983-1985). It combines a single overhead camshaft with twin SU HIF6 carburettors to deliver a broad, high-revving power band. Designed to meet Euro 1 emissions standards, it prioritizes mechanical simplicity and maximum power output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,316 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 96.0 mm × 80.0 mm | |
| Power output | 107 kW (145 PS) | |
| Torque | 200 Nm @ 4,500 rpm | |
| Fuel system | Twin SU HIF6 carburettors | |
| Emissions standard | Euro 1 | |
| Compression ratio | 10.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Toothed belt (interference design) | |
| Oil type | SAE 10W-40 (Mineral or Semi-Synthetic) | |
| Dry weight | 150 kg |
The twin carburettors provide a thrilling, high-RPM power delivery but demand meticulous and regular synchronization every 5,000 km to maintain performance and prevent fuel wastage. SAE 10W-40 oil is recommended for its high-temperature stability. The very high 10.3:1 compression ratio mandates the use of premium high-octane fuel (RON 98) to prevent destructive detonation under load. Strict 60,000 km timing belt replacement is mandatory to prevent catastrophic engine failure.
Oil Specs: Requires SAE 10W-40 specification (Volvo Owner's Manual 1984). Modern semi-synthetics meeting ACEA A3/B3 are suitable.
Emissions: Certified to Euro 1 standards for all production years (1983-1985) (VCA UK Type Approval applicable for registered imports).
Power Ratings: Measured under SAE net horsepower standards (post-1972). Output is specific to the twin-carburettor 'GT' variant (Volvo Workshop Manual 1983).
Volvo Workshop Manual (1983 Edition)
Volvo Owner's Manual (1984)
Volvo EPC Archive: Doc. VEP-230GT-83
Volvo Service Bulletin #SB-83-09
The Volvo B230GT was used exclusively across Volvo's 240 GT platform with longitudinal mounting. This engine received specific carburettor, camshaft, and exhaust tuning for the GT model, creating distinct performance characteristics. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat pad atop the block, just below the cylinder head on the exhaust manifold side (Volvo Workshop Manual 1983). The casting number for the B230GT block is 'B230', with 'GT' often stamped nearby. Visual identification: Features twin SU HIF6 carburettors on a specific intake manifold, a high-lift camshaft, and a distinctive black valve cover. Differentiate from the standard B230F by the twin carbs, higher compression, and lack of fuel injection. Service parts for the carburettors and distributor are specific to the GT variant.
The B230GT's primary reliability consideration is the maintenance complexity of its twin carburettor system, requiring skilled adjustment. Volvo service records indicate synchronization issues were a frequent cause of performance complaints, while ignition component wear was also common. The high compression ratio makes the engine sensitive to fuel quality and ignition timing, making precise maintenance critical for sustained reliability.
Analysis derived from Volvo technical bulletins (1983-1985) and workshop manuals (1983-1985). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VOLVO B-230-GT.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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