JC Boatguy
Well-Known Member
Last year i found a really nice 72 440 block in Ohio, ( I live in Wisconsin too). Standard bore, in excellent shape. Like the others have said, all I wanted was the block, I paid $350. I consider the book "How to build max performance Mopar big blocks" by Andy Finkbeiner to be my BIBLE! It is a wealth of very valuable info, clears up a lot of myths about cyl wall thickness etc. Also the others are right in that theres no diff in blocks being newer, posibly newer blocks may be even better.
Also, I've worked in 3 different Automotive machine shops since 1980 and just to be technical, there is no such thing as a " freeze plug". Even though even factory literature calls them that. They are actually referred to as "core plugs". They are used to remove the sand after the block is cast, thats really there only purpose. Ive been a certified Mercuiser marine tech since 1986 and I can tell you after seeing HUNDREDS AND HUNDREDS of broken blocks due to freezing, MANY of them never even pushed out the core plugs, only unrepairable gaping holes in the block. Cracks are serious and freeze damage CAN distort cyl walls. Repairing cracks is risky with no guarantees. I understand trying to repair numbers matching blocks, I would not recommend it for non matching setups. Thanks for reading. John
Also, I've worked in 3 different Automotive machine shops since 1980 and just to be technical, there is no such thing as a " freeze plug". Even though even factory literature calls them that. They are actually referred to as "core plugs". They are used to remove the sand after the block is cast, thats really there only purpose. Ive been a certified Mercuiser marine tech since 1986 and I can tell you after seeing HUNDREDS AND HUNDREDS of broken blocks due to freezing, MANY of them never even pushed out the core plugs, only unrepairable gaping holes in the block. Cracks are serious and freeze damage CAN distort cyl walls. Repairing cracks is risky with no guarantees. I understand trying to repair numbers matching blocks, I would not recommend it for non matching setups. Thanks for reading. John