i just went to a 20v. tho i got heaps more stuff engineered on the car other than just the motor conversion.

most are around $550-650 look at the RTA website and search " engineering signatories" and ring one up thats close to you and ask those questions.

i paid $880 for mine tho they overlooked a few things.. the others were $550 and they wouldnt pass it.. so yeh.. sum are strict sum are strict but will slide sum stuff through...