4 inch bore. 2.87 inch stroke.
Bore 4.250" Stroke 4.00"
BORE is 3.740 and the stroke is 3.480
4.00 bore 3.48 stroke
4 inch bore, 3.5 inch stroke.
The bore would be 4.310" and the stroke is 4.00"
4.312 bore x 3.50 stroke.
Ford didn't produce a 289 Windsor. EDIT: Actually.... The Windsor is the Ford small block V8 engine family, so yeah they actually did produce a 289 Windsor. People usually don't refer to it as a Windsor though since there wasn't an alternate 289 ci displacement engine, such as with the 351 (Cleveland and Modified, which are big blocks). Windsor just designates the Ford family of small blocks. And sorry, I know all that is irrelevant to your question. I just wanted to correct misinformation. The plug gap for a 289 is .034
bore 3.497 stroke 3.81
bore is the diameter of the piston and stroke is the length the piston moves in the cylinder.for example if bore x stroke is 1x3 then 1 is the diameter of the piston and 3 is the length of the cylinder.if bore is greater than stroke then it is a short stroke engine.
4inch bore 3.25 stroke formula bore x bore times stroke times .7854= cid
3.498 bore with 4.25 stroke
Bore 4.120 Stroke 3.75