The GM V8 to BJ kit part no. (MFK453#####) utilises the Land Cruiser 11" clutch set up on a new flywheel along with a new bellhousing that measures 240mm/9.45" in length. This new bellhousing and flywheel has been designed to move the engine forward giving adequate clearance between the cylinder heads and firewall. Re positioning of the transmission or firewall modifications are not required with this kit.

Internally balanced GM engines used with the following kits: MFK453C, and MFK453C/5

This new flywheel is fully balanced and fitted with a new GM 153-tooth ring gear, it is drilled and doweled to accept the standard Land Cruiser 11" clutch as fitted to HZJ75 series 1HZ engines. The flywheel is heavier, giving greater inertia allowing the engine to idle smoother. The extra weight also helps to give less chance of stalling the engine when off road climbing over rocks, and taking off on steep inclines. The extra weight of the flywheel has no adverse effect on the engine.

As the flywheel supplied with the kit has a 153-tooth ring gear you must use the correct Chevy starter motor to suit. This starter motor can be identified as having an alloy nose cone and uses a short and long bolt to attach the starter to the engine block.

Externally balanced GM engines used with the following kits: MFK453CE and MFK453C/L4.

This new flywheel is fully balanced, and is drilled and doweled to accept the standard Land Cruiser 11" clutch as fitted to HZJ75 series 1HZ engines. The flywheel is heavier, giving greater inertia allowing the engine to idle smoother. The extra weight also helps to give less chance of stalling the engine when off road climbing over rocks, and taking off on steep inclines. The extra weight of the flywheel has no adverse effect on the engine.

This new flywheel does not have a ring gear fitted, it bolts to the crankshaft behind the GM flex plate. The flex plate carries the ring gear and the balance weight for the engine. The flex plate is secured to the back of the flywheel with 6 bolts and spacers supplied in the kit. The GM flex plate ring gears can have either 153 teeth or 168 teeth. NOTE: The kit is designed to be used with the 168T ring gear. If your engine is fitted with a flex plate and a 153T ring gear a new starter or starter nose housing will also need to be purchased when purchasing the new 168T flex plate.

The bellhousing accepts all the Land Cruiser 2F 6-cylinder petrol components such as the bellhousing mounts, slave cylinder, clutch fork etc.

This means, some additional "2F" petrol parts will be required. Left and right bellhousing mounts and bolts, clutch slave cylinder, push rod and bolts, thrust bearing carrier, clutch fork, clutch fork pivot, clutch fork boot, bellhousing breather boot, gearbox front cover plate and HZJ75 series 1HZ clutch kit.

It will also be necessary to identify the year of your Chevy engine, particularly the late model engines as the crankshaft bolt pattern changed in 1986. The post 1986 Chevy small block engines were also externally balanced. One way to identify a late model Chevy engine is by the one piece, external rear main oil seal.