I'd like to get some input about this. It seems to me, that boring out the cylinders to take larger pistons while keeping the stock stroke would allow the engine to spin faster more easily; since it would create even more of an oversquare condition. If any of you guys have done this, let me know what you observed. Thanks.

7.4% increase in sv , offset by increased inertia of heavier pistons?

I dont think I'd do a piston swap just for that.

Isn't that what a L26 is? Boy, I now I cannot remember if the 260 is a bored or stroked L24!!?? Time to review the books!

the L26 is stroked. putting in L28 pistons gives 2569cc ( of the L engine calculator)

and you'll need 240 rods and flat top pistons to get some sort of usable compression.

Thanks for saving me the trouble, too many Z parts in front of the workbench (where the manuals are) right now!

I was thinking that this might be a way to get an engine that would rev faster, and give the potential for nice top end horsepower; I'm not looking for a 1/4 mile machine, this car will run on a road course. This is my goal from the start with my (future) Z project car. I know that wider pistons and shorter stroke allows for a theoretically higher redline, since the acelleration of the piston is lower than a long stroke motor; leading me to ponder whether or not this would be a good idea.

yeah its a good idea, it will give you more power up high as long as your intake setup can supply the air and fuel needed with the bigger capacity. though if your going to that sort of trouble you should use an l28 engine and bore that out.