So dont use blaster shocks -what do i know? I know my 16 year old shocks work but not that great so I was looking for opinions on a swap. Anyway I believe the RM250 head is 26cc and the stock is 24cc but i could be wrong. So yes the compression would be lower if it is bigger. I have an old magazine article about a mx race setup on a LT and the 86 RM head was used "for better cooling".
The LT500R motor into a LT250R frame was a common swap back in the day. You just have to fab motor mounts and I personally would not use a head stay (heard the motor twist blows base gaskets especially on 87 in stock frame). Then you have to figure out a pipe or have one made. Then there is sprocket alignment? Are kicker and shifter the same? Um intake boot is angled on 87 500 so use 87 250 straight intake or no airbox and Pod filter?
Last edited by nd4speed; 02-07-2006 at 03:50 PM.
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