Re: Mark IV Blocks?
Be prepared Chas, have cash and move quickly if it looks good. The first thing we need to know is "what do you intend to do with this motor, this will determine a good base for your build. I like the 289 blocks for non-number builds, higher nickel content, stronger. Plenty of meat to overbore. If you find a player, see if the seller will give a written guarantee that the core is rebuildable. Depending on your time frame a prebuilt suited to your app may make more sense. Check out some of the builders on this site. Good luck and have fun.
1970-LS5, #28- Fathom Blue,TH400, original motor car.
1970- NOM, 496, M21, #48 Forest Green.
1972- Malibu, 350. TH350- original motor car, #43 Gulf Green.