The Ford Barn - View Single Post - 47 Mercury 59AB V8 flathead engine and others.. What do I need to know before I buy.

rotorwrench · 03-12-2014, 11:18 AM

The Canadian blocks the went to NZ & OZ generally have a raised casting of the 99 number on the front right side behind the water pump. If all you have is some pitting in some bores then you would be a lucky feller indeed. The cylinder walls can take a lot of boring on those blocks. If you wanted to keep it close to standard then the pitted bores could be sleeved or just go ahead and bore it out what ever it needs.

Cracks can happen from freezing with no anti-freeze in the cooling system or you can get cracks from overheating around the exhaust valve pockets. As was already mentioned, freeze cracks in the pan rail are common if you live in an area of NZ that gets that cold in the winter. Valve pocket cracks would be from not enough coolant in the system.

03-12-2014, 11:18 AM	#20
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: 47 Mercury 59AB V8 flathead engine and others.. What do I need to know before I b The Canadian blocks the went to NZ & OZ generally have a raised casting of the 99 number on the front right side behind the water pump. If all you have is some pitting in some bores then you would be a lucky feller indeed. The cylinder walls can take a lot of boring on those blocks. If you wanted to keep it close to standard then the pitted bores could be sleeved or just go ahead and bore it out what ever it needs. Cracks can happen from freezing with no anti-freeze in the cooling system or you can get cracks from overheating around the exhaust valve pockets. As was already mentioned, freeze cracks in the pan rail are common if you live in an area of NZ that gets that cold in the winter. Valve pocket cracks would be from not enough coolant in the system.