Hi
I had my engine rebuilt with top hat liners, i did consider an engine from RPI but as i am not getting rid of the car in the near future and RPI`s engines still have the straight liners i decided on hopefully the permanent fix. I am lucky i got to know the lads at a locol garage that works a lot on p38`s and they done it in their spare time, cost me 2200 for the rebuild, machining, bearings etc. I can however Recomend RPI as i spoke to them about a new cam to fit in the rebuild, and i ended up with a fast road piper cam, duplex chain and gears and new followers and all the gaskets for a very good price. The couriers also lost these for 24 hours but i did get it in the end.
All the best
Mark