260 vs 289 ID

poboy427_old · January 6, 2011 at 10:41 PM

My buddy came across a 5 bolt SBF engine that appears to be recently rebuilt. Assembly date is 3K9C. We were wondering if there was a way to tell if this is a 260 or 289 without pulling a head or valve cover. Is there an external way to tell. I first thought of the timing pointer but that would be the same for 260 or 289 I think. Any input would be appreciated. I know 289 heads had the raised casting numbers on the head but not sure about 260 as I have never had one apart. We may end pulling a valve cover.

Ray

Edited by - poboy427 on 01/06/2011 23:22:41

C6ZZKGT · January 6, 2011 at 11:25 PM Official Post

Ray, This will be much easier than you planned. All that you need is the block casting number above the starter. The 260 and 289 casting numbers are different. If you post them on here or email me, I will confirm what you have.

-Fred-

poboy427_old · January 7, 2011 at 12:05 AM

Fred you mean I got to bend over.Lol That's why I was using the assembly date. That's no problem though. Easier than pulling it apart. He will be selling the engine and was just trying to see who he should appeal to. We thought if it was a 260 it might be good to pitch to the Tiger guys.

Thanks Ray

C6ZZKGT · January 7, 2011 at 12:44 AM Official Post

Ray, You can use a mirror and a flashlight if you are flexibly challenged. <img src=images/icon_smile.gif border=0 align=middle>

-Fred-

260 vs 289 ID

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