I was wanting to bore my ds but not as big as a 760, more like a 686 raptor, i was wondering if anyone makes a piston for that already.

 

do a search on bores - there are many.
720, 733 quite common.

 

doesn't a 102 or 103 bore stay in that area, try gary at tvi he has some new stuff on the way.

 

heh just run a 102 piston and bore you'all get 678. then you can up the compression two!

 

What Northjeepster said!

I run a 102mm bore in a stock jug that has been bored and re-niked.

I think Pami has a deal on some 103.5 bore pistons. You may want to ask them if they have gaskets for that bore and if the stock jug can safely be bored out for that piston.

Now, having said all that. . . what do you want more power for? What kind of riding do you do?

Bore isn't always the most effective power adder. There was a stock bore quad with lower compression than stock that got the most HP of any bore / stroked quad (he did have a turbo though [img]i/expressions/face-icon-small-happy.gif[/img] )

 

I burned up my rod bearing up, so I just figured I'd go ahead and bore it, and put a rod with a longer stroke in it, I just trail ride and drag race my buddies sometimes with their raptors, one of my friends just made his raptor a 686, and we kind go back and forth with horsepower mods, just trying to keep up!