Posted by jack cain from 209.86.130.24 (user-38ld0go.dialup.mindspring.com) on Thursday, April 18, 2002 at 9:28AM :
In Reply to: 251 or 265 Spitfire? posted by J-Gilly from 205.188.195.28 (spider-we023.proxy.aol.com) on Thursday, April 18, 2002 at 8:39AM :
Stroke on the 251 is 4 1/2 inches
Stroke on the 265 is 4 3/4 inches
You should be able to insert a wooden dowel into the cylinder bore via the spark plug hole and carefully rotate the engine. The difference between the lowest(BDC) and highest position (TDC) will be the stroke length.
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