B & B of Delaware...

[Maryland 400EX]

Has anyone ever done performance modifications with them? I'm curious about their knowledge of EX's...

[Sparks425Ex]

Talk to Beerock. They do all his engines and he swears by them. I geuss they make some killer 400ex kits.

[Ex'r Marlin]

I have with my 400ex. Butch bored my cylinder for the 416, put new valve seals in, etc.

I definetly recommend his work.

I don't know what other modifications you are looking for him to do, but he is definetly into quads!

[Maryland 400EX]

Cool. I'm scheduled for a 440 11:1, cam and porting by B&B on Monday. Ex'r, did he use new or hardened rockers with your cam?

[jb400exxx]

nice, goodluck, i'm hopefully gonna do a 416 kit soon.

[Dave400ex]

Awesome let us know how bad you eat those Z400's. You should have it bored to a 425 then stroked to a 465. lol. Then they would really be wanting to know what you have done....

[bklyn400ex]

warrior how much would it cost to do that?? and how reliable would it be?

[beerock]

OHH SHIIIITTTT hold on to yer seat maryland :devil

your gettin the kit a caboodle job, thats the job that will rip the sparks motor apart.


don't quote me on this but there 440 kit is 1,800

thats with a piston, port work, cam, larger valves?
I know it uses a white bros header pipe and muffle (included in the kit) so you must have gotten a lower price since you dont need the exhaust.

Do you have the header pipe as well maryland?


what price did they give you?

I'm glad you called them up!

you wont be dissapointed.

[Maryland 400EX]

Beerock: Butch at B&B asked me what type of riding I'd be doing and I told him 80% trail/woods riding and 20% top end war. He then told me that he doesn't quote HP figures but I'd gain 9 to 11 HP with his 440, cam and piston which should put me at 40HP with the X-6 Pipe and 39MM FCR. He said that the 39FCR was problematic and that they didn't use them but I like it so I'm staying with it. He also said that he didn't use new rockers with the new cam and I feel that is questionable. I hope B&B can work magic on this old motor cause I'm going to war real soon. I really want to buy a used stroker but time's wastin' so I gotta head to Delaware for some much needed oomph.