Cosworth GBA V6 F1 1.5 Turbo Engine

Cosworth GBA V6 F1 1.5 Turbo Engine for Sale | Ultimate Museum-Grade 41km Unit

This Cosworth GBA V6 F1 1.5 turbo engine for sale is an extraordinarily rare find, reputedly the lowest-mileage surviving example of this engine according to period Cosworth factory documentation. It covered just 41 kilometres during testing at Monza in 1987 — its only recorded competitive use — before the conclusion of the 1.5-litre turbo era brought an end to its Formula 1 programme.

Following the FIA’s ban on turbocharged engines in Formula 1 at the close of 1988, the engine was sold directly to a Cosworth employee, who subsequently converted it to naturally aspirated specification for use in hillclimbing — a process completed with direct assistance from Cosworth. The sole modification made to achieve this conversion was a change of pistons to raise the compression ratio. Every other internal and external component remains in its original GBA specification as built for F1 competition.

Anyone searching for a Cosworth GBA V6 F1 1.5 turbo engine for sale will find this a genuinely significant acquisition: it comes with a substantial archive of original Cosworth factory drawings and a selection of brand-new, unused period parts, representing a rare and significant addition of independent historical, technical, and collector value.

Complete Package Includes:

• Complete Cosworth GBA V6 F1 1.5 turbo engine, 41km from new
• Period Cosworth factory documentation supporting mileage, identity, and provenance
• Large collection of original Cosworth engineering drawings (GBA programme material)
• Selection of brand-new, unused period parts, original Cosworth stock

Characteristics & Specification:

• Engine: Cosworth GBA
• Configuration: V6, 1.5-Litre Turbocharged (F1 Specification)
• Formula 1 Era: 1.5-Litre Turbo Era – 1987
• Recorded Mileage: 41km – Testing at Monza, 1987
• Provenance Documentation: Period Cosworth Factory Documentation
• Post-F1 History: Sold to Cosworth Employee; Converted to NA for Hillclimbing
• Conversion Assistance: Carried Out with Cosworth Factory Support
• Modifications from Original: Pistons Only (Compression Ratio Increase) – All Else Original GBA
• Originality: All Components Original GBA Specification Except Pistons
• Drawings Archive: Large Collection of Original Cosworth Factory Drawings Included
• New Parts: Selection of Brand-New Period Parts Included

Vehicle Fitment – Compatible Models:

• Historic motorsport competitors eligible to run GBA-specification machinery
• Hillclimb applications following the factory-supported naturally aspirated conversion
• Not interchangeable with other Cosworth 1.5-litre turbo F1 variants without confirmed specification matching

Why Choose This Cosworth GBA V6 F1 1.5 Turbo Engine:

• Reputedly the lowest-mileage surviving GBA example, at just 41km from new
• Documented, traceable provenance via period Cosworth factory records
• All components retain original F1 specification except pistons, changed for NA hillclimb use
• Conversion carried out with direct Cosworth factory support, to a professional standard
• Accompanied by a substantial archive of original Cosworth engineering drawings
• Includes a selection of brand-new, unused period parts, never fitted

Key Features:

• V6, 1.5-litre turbocharged Formula 1 engine (naturally aspirated converted)
• Only 41km recorded, from Monza testing in 1987
• Near-complete original GBA specification throughout
• Comprehensive supporting archive of factory drawings and unused parts
• Exceptionally rare level of originality among surviving late-era F1 turbo engines

Ideal For:

• Formula 1 collectors and motorsport historians
• Cosworth heritage and archive collections
• Museum and exhibition acquisition
• Serious private collectors of period F1 technical hardware
• Historic motorsport competitors eligible to run GBA-specification machinery
• Engineering institutions with an interest in late-era F1 turbo technology