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Olof Eriksson
10-13-2011, 02:21 AM
Which engine parts differences the 450 from the 550? To convert the 450 to the 550 that is

Allen Noland
10-13-2011, 07:42 AM
Which engine parts differences the 450 from the 550? To convert the 450 to the 550 that is

You will need just about everything except for the heads and the transmission gears. The cases, crank, rods, pistons, liners, cam chains, and throttle bodies are different. The biggest displacement that I have been able to get using the 450 cases and crank with a custom built "big bore" kit is 500cc.

Alice Racing
10-13-2011, 09:20 AM
Have 2 550 motors Olof if you want one ?

Olof Eriksson
10-13-2011, 03:09 PM
I was figuring cause I found one that had been broken down after few hours and combined with my engine it might be cheaper than to do the dreaded rebuild of my engine with new pistons and everything. This engine has had loose flywheel bolts or something, its broken on that side anyways, rest is fine. But i guess my crankshaft isnt useable with the 550 pistons and stuff then?

Stuart I guess its out of my price range?

uswjmc22
10-13-2011, 07:28 PM
Stuart, please post up if you also have any 450 motors for sale with pricing, thank you.

TBW
10-14-2011, 12:39 AM
Stuart, 550/450 and what prices?

Alice Racing
10-14-2011, 05:48 AM
Yes have 450 motor, maybe two...email me please

efi_geek
10-26-2011, 07:11 PM
I also have an unstarted RXV450 engine forsale.