289 & 260 Crankshaft

metcoptiger · Post by **metcoptiger** » Fri Sep 28, 2012 11:44 pm

Are both cranks the same

metcoptiger · Post by **metcoptiger** » Fri Oct 05, 2012 11:28 am

I have a variation on this question. Some 289 cranks have a one piece oil seal and some two piece. Are the cranks fully interchangeable?

pruyter · Post by **pruyter** » Sat Oct 06, 2012 5:22 pm

Both crankshafts are the same as is confirmed in the parts list concerning Tiger Mark 1 and Tiger Mark 2. It is about the only thing in both engines that are the same. For more details check the book "Mustang & Ford Small Block V8" from the author Bob Mannel.

Regards,

Peter Ruyter

pruyter · Post by **pruyter** » Sun Oct 07, 2012 9:12 am

Regarding the two types of oil seals: it is possible to use both seals. Originally the seal was a rope seal and a sharp pin was centered in the seal groove in the rear main cap. This was done to prevent the roap seal from rotating. If you want to use a spit-lip-seal the pin has to come out and you have to fill the hole with silicone sealer to prevent a leak.

Regards,

Peter Ruyter