Volvo Redblock to BMW ZF 8HP Transmission Adapter Kit

This complete adapter kit enables the installation of a modern BMW ZF 8HP automatic transmission behind a classic Volvo Redblock engine. Designed for engine swap projects that demand strength, reliability, and modern drivability, this kit provides a precise mechanical connection without the need for custom fabrication.

The adapter is available in different configurations depending on engine mounting position and ZF 8HP bellhousing type, ensuring correct alignment and fitment.

Engine Compatibility & Mounting Position

• Volvo B230/B20 – 20° engine tilt (factory Redblock B230 mounting position)
• Volvo B20/B230 – 0° engine tilt (factory Redblock B20 mounting position)

The correct mounting angle is essential for proper drivetrain alignment, gearbox positioning, and long-term reliability.

ZF 8HP Bellhousing Compatibility

This adapter kit is designed around the BMW ZF 8HP transmission family. Different 8HP gearboxes use different bellhousing patterns depending on engine type.

Important: If your transmission uses the N57 bellhousing, you must select the 8HP70 (N57) option, as it shares the same bellhousing design with the following gearboxes:

• 8HP45 – N47
• 8HP50 – B37, B48, B58
• 8HP51 – B58
• 8HP70 – N57
• 8HP75 – B57
• 8HP76 – B57 / S58

If your gearbox is listed above, the 8HP70 (N57) adapter option provides the correct bellhousing compatibility.

What’s Included

• CNC-machined adapter plate for precise engine-to-gearbox alignment
• Custom flywheel designed for Volvo Redblock to ZF 8HP applications
• Complete mounting hardware set

Key Benefits

• Supports modern ZF 8HP automatic transmissions
• Correct engine tilt options for B230 and B20 engines
• Precision-machined components for reliable fitment
• Ideal for street, drift, and high-performance builds
• Future-proof drivetrain upgrade

Additional Notes

• Transmission control system not included
• Designed for rear-wheel-drive applications
• Built to order – lead time approximately 6 weeks

This adapter kit is the perfect foundation for combining classic Volvo Redblock engines with the performance, refinement, and strength of BMW’s ZF 8HP automatic transmissions.

Important – Custom Manufactured Products

Please note that the following adapter kit configurations are custom manufactured to order and are therefore non-refundable:

• KCP-0255 – N20 8HP45 – B230 – 20° engine tilt
• KCP-0256 – N55 8HP45 – B230 – 20° engine tilt
• KCP-0258 – N20 8HP45 – B20 – 0° engine tilt
• KCP-0259 – N55 8HP45 – B20 – 0° engine tilt
• KCP-0260 – N57 8HP70 – B20 – 0° engine tilt

The N57 8HP70 – B230 – 20° engine tilt (KCP-0257) is the only version eligible for return/refund.

Please make sure you select the correct configuration for your engine and transmission before placing your order.