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Posted by Daryl in Oz [210.50.228.4] on Wednesday, November 24, 2010 at 00:44:36 :
In Reply to: 61 PW Engine ID posted by Steve [75.44.221.131] on Tuesday, November 23, 2010 at 16:51:31 :
Check it's a 25" block - pull the plug above #6 piston and measure stroke. If it's a 25" engine and 4.5" stroke it's a 251. Does it have a full flow oil filter?