It refers to the throws of the crankshaft/distance the piston moves. It usually is compared to the bore of the engine. An example a 302 4"bore x 3"stroke is a short stroke motor, by comparison a 5.4L ford v8 3.552" bore x 4.165" stroke.
bore 4 in (102mm) stroke 3in (76mm)
Simple. The 302 is better for longevity. The 302 is a faster engine. The 305 makes its peak torque at a very low RPM because of its longer stroke. This is off the top of my head, but the 305 is like a 3.7x/3.5x bore/stroke. The 302 is a 4.00 x 3.00 bore x stroke. Way bigger bore with a shorter stroke. 302 is a faster revving engine because of this, with pistons the size of a 350 Chevrolet. I have had both engines, but the 302 definitely tows better.
Bore x stroke is 4 x 3.96
Yes, the 289 Ford engine evolved into the 302 engine. The 289 was part of Ford's small-block V8 family and was produced from 1963 to 1968. In 1968, Ford introduced the 302 engine, which featured a slightly larger bore while maintaining the same stroke as the 289, allowing for improved performance and efficiency. Both engines shared many components, highlighting their close relationship within Ford's engine lineup.
A ford 302/5.0 will be 306ci if bored .030 (4.030" bore)
The Ford 239 flathead V8 engine has a bore of 3.19 inches (81 mm) and a stroke of 3.75 inches (95 mm). This engine was used in various Ford vehicles during the late 1940s and early 1950s and is notable for its distinctive flathead design. The combination of bore and stroke gives the engine a displacement of approximately 239 cubic inches (3.9 liters).
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"