53.9mm
What is the standard bore size of a 1987 suzuki rm250 1987
64mm is standard but piston are available in 0.5mm oversizes up to 66mmMore help at the SuzukiTS.com forumNigel in NZ
82MM is standard bore and 71.2MM is the Stroke
diameter
Any Auto Parts store can sell you a piston.
4"
approximately 1000 horse power but it could be more like 500 depending on a tail wind or head wind give or take 200. the piston size is directly related to the size of your junk
4.040". The standard bore is 4.00".
Either a 301 (standard), or a 350 or 400 V8
The bore and piston size are the only real difference between the two.The 350 has a bigger bore and piston and so puts out more horsepower, the305 = 3.75" bore and the 350 = 4" bore. Both have the same stroke.Also the starters are different because of the smaller flywheel but other wise the external parts are interchangeable.
Not unless you want no piston walls.