US-built V4 for motorcycles.....

[RichBaker]

I want one!  KMV4 engine is based on the LS7.R 'Vette engine.....

http://jalopnik.com/5703588/kmv4-a-mini+small-block-for-motorcycles

[Pat Conlon]

Nope, not for me. A pushrod motor with hydraulic lifters?  I love V4's but a low 7800-8000 rpm redline is too narrow, for a bike.
Still a 1645cc 140 hp motor with 120ft.lbs of torque sounds cool, just the narrow rpm window (inherent with pushrods) bugs me.

Here's a V4 which looks good to me: http://www.sportrider.com/bikes/2011/146_1011_2011_aprilia_tuono_v4_r/index.html

I'm a big fan of the all aluminum Chevy LS motors. We put 'em (LS-33's) in our Miata's and they haul ass..
http://www.flyinmiata.com/V8/Mike/index.php?UID=41

[JCainFJ]

 I like V4's too! This one does great revlimiter wheelies.

http://thekneeslider.com/archives/2007/07/30/honda-st1300-streetfighter/

[Travis398]

It looks expensive 

[Pat Conlon]

Yea, that looks way cool. I remember seeing that a couple of years ago. How many hours do you have into that project Jon?

[JCainFJ]

 Pat,

It was a quick project, about 100 hours from me and another 150-200 from others. We want to do a wing with a blower next. With the same "tactical" sort of look.

[Pat Conlon]

Hah! A supercharged 1800cc 6 cylinder naked bike is as "tactical" as 50mt Russian nuke...Bike named Tsar Bomba?
Take pictures...lots and lots of pictures.