'85 LT250R 5mm stoker?

[CrazyLT250R]

ill like to know if this is posible, im wondering becouse the 87 and up LT's R came with more stroke and less bore on their engines than 86-86, the 85-86 came with a 70mm bore and a 64.8 stroke, the 88 and up came with a 67mm bore but with a 70mm stroke, is ot posible that i could get a 88 rod on my 85 and pump it up 5.2mm stroke or cut up .2mm in the dome and make it 5mm stroker? if so where could i send to make a 5mm spacer for it? how much is the price aproxx in doing that spacer? if it will work would a 5mm stroke increase and make a big diference in the 85 LT-R?

[ONLY2STROKES]

well installing a longer rod will not give more stroke.i do not think the cranks themselves will interchage..i have heard of a 85-86 longrod..that is built with the 87+ rod installed on the 85 86 crank..it will make it a +4,5 mm long rod engine..member mighty3wheeler has done this mod to an 85-86..he can help ya out on setup and power increase info..

[CrazyLT250R]

well thats what im asking, not the hole crank but installing the rod only to the 85 crank... will it do any diference?