Posted by Greg Coffin [108.162.221.94] on Wednesday, May 18, 2016 at 09:42:05 :
In Reply to: 251 or 230 posted by clueless [108.162.236.115] on Tuesday, May 17, 2016 at 18:53:26 :
The 251 water pump is lower, and the front casting bolts onto the impeller housing. The 251s also have a rubber front engine mount under the crank pulley, not the old "Floating Power" style bracket like the 230s. If I had to bet money, I'd say it's a 230.