Mechanical:

I wanted to keep it looking original but the B27 was pretty tired and the 3sp autos aren’t great, I had an exchange B28 laying around, and John Johnson supplied a 760 AW71 to run with it. I did a lot of other changes while fitting the new engine, I fitted the CIS idle system from a 760 which uses a small computer and a idle valve to control the idle more accurately than the aux air valve, an external trans cooler, electric fan, etc.

Before cleaning

removing the B27/BW55

Stripping and cleaning the B28

these are the later rocker arms which were only fitted to exchange engines and B280s, they make a big improvement but the rocker covers need modifying to give enough clearance for them, I wanted to keep the B27 ones so I removed the same sections the factory did on the exchange ones.

B28 fitted

Intake and K jet before and after

The AW71 conversion was pretty straight forward, @Angus242164 Supplied a 164 tail shaft which happens to be the right length, @carnut222 supplied a late 240 OD shifter, I fitted an early tail housing with speedo drive, a 240 AW71 mount in a V6 crossmember all fits perfectly. The shifter linkage was shortened, an external cooler meant I didn’t need to modify the hard lines to fit the radiator.the engine pipe needs to be modified slightly to clean the AW71, I took the opportunity to weld on the main section of a 240 engine pipe which doesn’t have a 3rd muffler where the 260s do.

swapping over the early tail housing with a new bush and seals.

OD shifter fitted

modified engine pipe

crossmember cleaned

later PS rack fitted with custom hose

fan switch fitted

the distributor and coolant return pipe had to be swapped to the B27 to allow the early manifold it fit

thermostat housing drilled and tapped for CIS temp sensor

Oil sender adapter made out of an oil gallery plug

silicon coolant hoses

later fuel pump fitted

Kings/DVS springs (-45mm/-30mm f:r), new KYBs, refinforced control arms, 21mm/19mm sway bars(originally 17mm/nothing) new strut tops. new brake hoses.

@AshDVS supplied DVS special front springs