Who makes a 13 or 13.5:1 piston for a 440?

[RAPTORAZ]

Topic pretty much says it all. Anyone?

[JD400exrider]

I think LRD carries them. My buddy was running 13.1 in his last lrd 440. Not sure what brand it was though. Sorry not a whole lot of help

[chad502ex]

Originally posted by RAPTORAZ
Topic pretty much says it all. Anyone?

raptoraz, Not sure of any piston manufactures that'll do >13:1. I beleive you'll have to go custom piston from Ross or JE, but you'll have to get four made up which is alot of $$. Or you can shave your head down ~0.020" (removes ~3cc) and remove the base gasket to pull your jug down further; plus, install a 12.5:1 piston I think you'll get there. Of coarse, I would run theis without stronger jug bolts to keep you head from twisting under torque.

Good luck, hope this helps.

Chad502EX.com

[chad502ex]

i meant I would not run without stronger jus bolts, and pull'n down the jug by removing base will increase compression too!!

:)

[Colby@C&DRacing]

Je or Ross both make those pistons.:)

[RAPTORAZ]

Thank's for the reply. I passed along your phone # to my buddy who's looking for the piston.