250r engine questions

[damageinc2785]

will the engine from a 88 trx 250r bolt in a 86 atc 250r?
what about the other way around?
thanks

[250RNUT]

Yes, They will interchange with each other.

[brapp]

they are almost identical with the exception of the later trx motors have diffrent rods cylinders and clutch parts.

[damageinc2785]

thanks for the help