The five speeds are very very rare and desireable. Judging by recent ebay results a complete five speed conversion kit with the 38# flywheel might bring north of $2,000 if complete and in good repair.

I would not waste the 38# flywheel on a 240 though. The 240 flywheels can be had for about $100 and the 38# flywheels at about $300 or more.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.