Smoked 450

[Guest]

1981 gs450l someone ran it lean for way to long. Needless to say pistons are smoked, the cylinder is still in spec but has a ridge top and bottom that would be hard to hone out. I was going to have it bored .5 over but I can't find os rings. Has anyone bored it to 74 mm and used 500cc pistons? Or is there another way? Or do I bite the bullet and get 500cc cylinders off eBay??

[tom203]

Sure, if you are ambitious, go the 500 route. I'd probably just look for another 450 motor

[Boba]

There is member on here selling a 450 motor but doesn't want to ship it if you're willing to make a road trip. I wanted him to ship it but I don't think he wants to deal with the hassle

[tkent02]

500 cylinders and pistons are plentiful and cheap as dirt on eBay. It's an easy bolt on mod and adds about 10% to the displacement, which means a lot of torque. Get the cam chain tensioner from the 500 too.

Or I have a nice tight set of 450 cylinders and pistons I will sell.

[Oldman99]

I was looking to go the 500 pistons and cylinders myself soon. In the meantime I found 0.5 and 1.0 oversided rings. Good luck getting her back on the road whatever direction you decide to go.

http://www.partsoutlaw.com/oemparts/...d68/crankshaft

[tkent02]

Did you find the oversized pistons too?

[Oldman99]

Did you find the oversized pistons too?

Your right. I did Not see that they where discontinued. I'm sorry if I got your hopes up. My fault.