hey guys i am not a engine guy but i do know that is that i wanna make my raptor faster. i have heard that a 686 kit is my best bet and to stay away from the 727 because the walls get to skinny or small. But i was wondering if they make a 700 kit if not how would you go so for doing it?
thanks

 

yeah check out lrdperformance.com they make a 700 kit for the raptor but i've heard some people say it is only a 686...you might also want to look ing a the curtis sparks 690 raptor he is building some really fast raptors

 

LRDs 700 kit is a 102mm bore just like trinitys 690 curtis 690 madracing 690 craycraft 686 ct 690 they call it a 700 to make people think its bigger. the wall thickness on a 727 is the same because you have to resleeve and bore your cases for the bigger O.D. sleeve i have built both and on the hill the 727 will put out more

 

by the way the 800cc stroker raptor is out