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flying400ex
05-28-2002, 07:24 PM
Does any one have a Curtis Sparks 416 national kit or 440 national? Does anyone know how much they runs$$?? How does the 416 hang with the 440?
Pro400EXC
05-28-2002, 09:31 PM
Sparks makes some of the best shyt.

I'd say the kits run around $2k-2500, for everything. He says his 416 National kits stays with his 440 kit,so it must be good, get what you want.

Thks,Pro
05-29-2002, 03:20 PM
I call awhile ago about it and was told the 416 puts out around 46hp where the 440 puts out around 50. 416 revs higher. Also i think he said the 416 will be more reliable. Give them a call they are great to deal with.
Dave400ex
05-29-2002, 03:23 PM
Sparks has all the Prices on his Web Site. He is one of the Best. The only bad thing is that he has a VERY long wait to Work on Motors. If you can Wait close to 6 Months go for it, if not you may want to look at TC.
flying400ex
05-29-2002, 09:06 PM
How long do think the wait is for a duncan built engine?
Dave400ex
05-29-2002, 09:10 PM
Our Local Guy Jason Orr (Orr Motorsports) built a Duncan 440 not to long ago. I think the Wait was around 6 Weeks but he had to wait on the Piston. It`s not to bad.
flying400ex
05-30-2002, 10:58 AM
Does Duncan build a 416?
Dave400ex
05-30-2002, 03:04 PM
I have never heard of a Duncan 416 Kit, but I would think they could build you one.
kabd69667
05-30-2002, 03:50 PM
All you have to do is get the cam, a piston, their pipe and i'd say i had you have a duncan 416