+4 stroker big bore or not ?

[road racer]

How much of a power increase will I get if I go with a Vito's 404 big bore as compared to .020 stock bore with similar port configuration with a +4 stroker crank ? Is it worth the extra cash ?

thanks

[Wallrat]

Personally I like to build an engine with an emphasis towards reliability. I think with the big bores you only get two bores before you gotta resleave. What kinda riding do you do?

[road racer]

Mostly trail riding with alot of wide open woods roads.

[Ducman]

You get more power from a stroker that is ported properly and the big bore only has 2 over bore sizes. The over bores I think are 68.25 and 68.5 (standard BB is 68 mm) so if you get a nasty gouge in the cylinder wall your sleeves might be toast and you would have to resleave again. You also have to go with big bore domes. The cost of resleaving the cylinders is just about the same as a 4mm stroker crank.