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View Full Version : 2004 450r rebuild


fast1500
03-09-2011, 09:39 PM
ok i got my motor torn apart and the crank bearing collar went out and i had metal shavings in my oil. I was wondering what set up yall think would be best. It has an HRC cam in already.
I want to put a hot rods +3 crank with a 96mm 11.1 CP shelf piston or just the stock crank with 96mm 11.1 CP shelf piston . what do you think?? And should i put +1 valves in it? thanks...
Ruf Racing
03-10-2011, 07:50 AM
Get yourself a Venom 12.25:1 piston. Optimize all the compression you can, on pump gas. I run a +3 Hot Rod crank, it has performed very well. The HRC cam works great with this combination also. Use OEM crank bearings too. Plus 1 exhaust valves on a ported head, the $hit will rock. :macho
BlaineKaiser450
03-10-2011, 07:03 PM
+1 sounds like a good setup
Fast470r
03-11-2011, 11:57 AM
I like CP pistons 3 years going strong but go with the 12.5 dont know much about Venom tho.
WB450r
03-11-2011, 01:00 PM
Originally posted by Fast470r
I like CP pistons 3 years going strong but go with the 12.5 dont know much about Venom tho.

x2..i have a 13:1 cp and use 93 pump gas..my engine builder said i could use pump instead of race gas