You need ta do some home work on who does it!. There's a lotta "hacks" out there. May just need boring but being OLD may need all done ta get it cleaned up so ta speak. A "good" shop will discuss this with ya. Now ya need ta know for sure if its chrome or steel sleeve motor. If tha hole is 3 1/8" its a steel 150. If its 3 3/8" (all 200's were chrome back then) its probably a chrome hole motor given tha age but also could have had work before and replaced with a steel sleeve in any one of tha six holes. Replacing tha chrome hole with a steel sleeve is tha "norm" on these things......What part of tha Country ya in?
