Cylinder compatability

[FPMXer]

I want to know if the 85'-87'+ 250R cylinders are the same and can any of them be bolted onto the bottom end of oppisite years? Like can any of those year cylinders bolt right onto the 86' bottom end?

[fiveOnick]

The cylinder deck heights are all the same with the exception of production variations. The difference is rod length and piston pin height.

[FPMXer]

So I can buy an 87' TRX cylinder and bolt it on and run it with my rod and a 87' piston?

[DJ250R87]

I have a 86 motor and i tried to run a 87 cylinder and piston the cylinder worked but the piston is diffrent it will hit the cylinder head so you need a 86 piston

[FPMXer]

Okay. That's what I was looking for infowise. I want to buy a shit cylinder off fleabay and put a 310 sleeve in it and have it ported for the dunes. So I wanted to know if the 87' will bolt on and all ports matching. I picked up my cylinder from phathead yesterday and he does the 310 sleeve with piston and gaskets for $249. http://phatheadracing.com/detail.aspx?ID=218 I asked if the price included the sleeve install and port matching and the lady said, "Yes, it's included." They will port it for whatever type of riding I want for $195.

Deny what do you charge for a dune port on a 250R barrel?

I also would like to get the 4mil crank from motosport and install it.