Butcher Race Engineering
Volvo Red block to RX8 adaptor plate
Volvo Red block to RX8 adaptor plate
This adaptor plate will allow you to fit a 2004-2008 Mazda RX8 5 or 6 speed gearbox behind your Volvo Red block Engine and mount the engine at the standard 15 degrees in the engine bay.
The plate is laser cut to ensure accuracy and repeatability so all adaptor plates are manufactured and fit the same.
The four countersunk holes are used to align the centre line of the adaptor plate to the centre line of the crankshaft. The plate is supplied with all fastenings to bolt the engine to the adaptor plate and the gearbox to the adaptor plate. There are 2 dowels welded into the adaptor plate that then line the gearbox to the crank centreline that are tapped to accept fixings.
Your gearbox will need notching slightly to clear the nose of the starter you are using. This can be done by bolting the adaptor plate to the engine and then the gearbox to the plate, offering up the starter and seeing how much material needs to be removed.
*When using this adaptor plate you will need to machine 15mm from the RX8 bell housing and then re-counterbore the holes in it for the dowels. We can offer this machining service at a cost of £75.Please email with your requirements for this service*
With this adaptor plate on a red block engine you need the following, starter clutch and flywheel setup:
- Volvo 240 flywheel and pressure plate with a 215mm 1"x23 spline friction plate
- Standard Volvo starter
This setup can be used with the standard external slave cylinder, one of our cable clutch conversion kits or one of our hydraulic concentric release kits.
Click here for the cable clutch conversion kit to suit this setup: 5 Speed or 6 Speed