Im trying to get a little more knowledge on the stroker kits I wanna build my motor (b18c1 bottom end b16a2 head) but as far as numbers of bore and stoker kit I don't know whats best. I want to shoot for 500+ HP. http://images.ibsrv.net/ibsrv/res/sr...ilies/drag.gif

 

I hope you don't think you're going to reach 500hp without some sort of power adder.

The idea behind a long rod is that it helps to alleviate a lot of the stresses that a piston places on the sidewall of a cylinder because of the angle of crankshaft throw. Conceptually, the length of a rod must decrease as the stroke of a crankshaft increases if everything else stays the same. While the additional stroke creates displacement and bottom-end torque it will inhibit an engine's ability to rev. A lot of this is due to the added friction on the sidewall. If you could theoretically increase the deck height (you can, just not easily or reliably) then you could increase the stroke (up to twice what the additional height of the block is) while leaving the rod length unchanged. This would allow you to have additional displacement without as much of a friction increase. The stressors behind stroking an engine will never be completely overcome, though, as you're moving a rotating mass further away from a centerline.

I'm sorry, but this is not a very in-depth explanation. This topic is covered all over the internet so if you still care then please search it out and read up. I just covered what came to mind.

 

that makes sense, I should of added "boost build" I just want to figure out how I should go about with my build long rod seems to be a good route as far as reliability correct? but I still trouble to figure what bore size im guessing not to big there for cylinder walls will probably not hold up very long.