The Ford Barn

Walt Dupont--Me. · 12-02-2016, 07:42 PM

With the raised intake surface ( accually it's lowered ) it's 41-42 block, it had the 3-1/16, tin can sleeves, .040 thick, remove the sleeves and you have a .080 bore, same as the 8n--9n Ford Tractor, Ford made a ,0825 piston SO, you just hone the bore ,002 .003 and slap Tractor together. those piston are hard get so I bore another .020 and use .100 over EAB pistons for the Tractor, I've built a lot of them. On the 40=41=42 block I remove the sleeves and bore another.045 to 3-3/16 and use stock EAB pistons

12-02-2016, 07:42 PM	#8
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: Cyl. bore question With the raised intake surface ( accually it's lowered ) it's 41-42 block, it had the 3-1/16, tin can sleeves, .040 thick, remove the sleeves and you have a .080 bore, same as the 8n--9n Ford Tractor, Ford made a ,0825 piston SO, you just hone the bore ,002 .003 and slap Tractor together. those piston are hard get so I bore another .020 and use .100 over EAB pistons for the Tractor, I've built a lot of them. On the 40=41=42 block I remove the sleeves and bore another.045 to 3-3/16 and use stock EAB pistons