Author: "Doug & Rett Leithauser" <dleit@worldnet.att.net>
Date: Sat, 23 Feb 2002 19:56:43 -0500
My precious virgin 260 has returned from the highly recommend machine shop with boring bar tool marks visible in two cylinder walls. You can feel the marks with your fingernail. The cylinders are alr
This seems like a perfect opportunity to settle a long-running question. Namely, can you overbore a 260 to 289. I personally would be willing to pitch in $20 toward the cost of getting your cylinder
Actually, Bob, if you drew the conclusion that I was claiming the 260's (and I DO mean the 3 freeze plug models ONLY as on the Tiger, not the earlier 221 over sized 2 freeze plug), then I mistated my
The main message for you, Doug, is that Ford was very conservative about how much overboring their thinwall casting Windsor blocks could take. Their recommended 0.040" or 0.060" overbore limit is se
The 260 in many peoples minds is a 289 with a smaller bore. Ford tech manuals state that the maximum overbore for a 260 is .030. Many people have used this limit with success, but it is the variation
Something that is fails to be mentioned in this discussion is the difference in the casting arrangement of the cylinders between the 260 and the 289. Ford repositioned the bores on the 289 to achieve
What??? Where did you get this information?? That means, for example, that the cranks and heads aren't interchangeable. This assertion is absurd on the face of it so you better have some damned good
I've just spent two hours looking for the reference, but I can't find any of my engine reference books (between wife putting stuff away and teenage son, not being able to find stuff is a common occur
So that's the reason Doane Spencer used a sleeved, 5-bolt 289, bored to Tiger, 260 specs. _________________________________________________________________
I'm not sure, but it sounds like you have at least admitted that the bore centers on the 260 and 289 (and 221, 225, 302, and 351W, for that matter) are the same. If the 260 was different, you couldn
So it would overheat?? --Original Message-- From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net]On Behalf Of Ray Johnson Sent: Sunday, February 24, 2002 3:00 PM To: tigers@autox.tea
Circa 1976. I had a 64 Ford Falcon with a 260. I pulled the motor apart for a "poorman's" rebuild (new bearing and rings) at 140,000 miles. The pistons were already .040 over. I never had an overheat
Circa 1979, Overhauled my Tiger's original 260, and had the machine work done at a shop experienced in Fords and Tigers. Their 260-289 honcho warned me at the time that if the block was worn beyond .
I think that that may be the whole point, regardless of the sharp details. Make certain that the mechanic/machinist knows what they are talking about and that every motor is different. Dr. Moonstone