not that this is what you had in mind, but: An LS6. That is, a 5.7L/347ci V8 from a 2001 Corvette Z06. Building it gives me much much more satisfaction than

not that this is what you had in mind, but: An LS6. That is, a 5.7L/347ci V8 from a 2001 Corvette Z06. Building it gives me much much more satisfaction than banging out any kind of code ever has.