Which big bore cylinder kit and why? - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

King Gordon · 06-09-2012, 02:03 PM

Just looking for opinions on which cylinder kit is the best and why. I did some searching on here, but couldn't find a direct comparison with opinions.

Not looking to run high compression. 12:1 is fine with me, might get the head ported and run some after market cams, but nothing crazy.

Let me know your thoughts- Thanks

**husker525** · 06-09-2012, 04:53 PM

There are a lot of good companies, and each BB kit depends on your budget. You really get what you pay for. JSR, Athena, Ice Cube and Cylinder Works all make BB kits. Cylinder Works is probably one of the cheapest, but do your research well. JSR is one on the high end, but I would not hesitate to use it.

ldjbuff · 06-09-2012, 06:44 PM

Cylinder works is super risky imo. Athena is the best bang for the buck. That's what I run, if money was no object I would get a JSR, but $350 more than the Athena

King Gordon · 06-10-2012, 11:13 AM

Thanks for the info guys- sounds like I'll be buying an Athena then.

ldjbuff · 06-10-2012, 11:23 AM

Read this too, it will help ya

Yfz Athena 480cc

06-09-2012, 02:03 PM	#1 (permalink)
King Gordon Member Join Date: Apr 2011 Location: Mesa AZ Posts: 60	Which big bore cylinder kit and why? Just looking for opinions on which cylinder kit is the best and why. I did some searching on here, but couldn't find a direct comparison with opinions. Not looking to run high compression. 12:1 is fine with me, might get the head ported and run some after market cams, but nothing crazy. Let me know your thoughts- Thanks

06-09-2012, 04:53 PM	#2 (permalink)
husker525 Police Patrol Join Date: Sep 2005 Location: Parker, Colorado Posts: 3,401	There are a lot of good companies, and each BB kit depends on your budget. You really get what you pay for. JSR, Athena, Ice Cube and Cylinder Works all make BB kits. Cylinder Works is probably one of the cheapest, but do your research well. JSR is one on the high end, but I would not hesitate to use it. __________________ TEAM TRIGGER RACING (Now sponsored by AMSOIL, Vickery Motorsports, MotoXNutrition,DZ Graphics, Engine Ice, DeRisi Racing, Team Ape, Cosworth Pistons, Hiper, Lonestar Racing. Barker Exhausts Terse 07 Race engine 2007 Blue YFZ: Venom 14:1 piston, Cam Mod, Jardine RT4 Exhaust, 175 main, 45 pilot, 04 needle 3rd clip/ 3 t Become a fan of Team Trigger Racing on Facebook!!! Some people surround themselves with smoke and mirrors, I prefer to use *VooDoo* !!!

06-09-2012, 06:44 PM	#3 (permalink)
ldjbuff Senior Member Join Date: Jul 2009 Location: Star, Idaho Posts: 1,536	Cylinder works is super risky imo. Athena is the best bang for the buck. That's what I run, if money was no object I would get a JSR, but $350 more than the Athena __________________ 08 YFZ 450 SE Pro MX Duner *Outlaw Innovations* Team WeeWah Racing

06-10-2012, 11:23 AM	#5 (permalink)
ldjbuff Senior Member Join Date: Jul 2009 Location: Star, Idaho Posts: 1,536	Read this too, it will help ya Yfz Athena 480cc __________________ 08 YFZ 450 SE Pro MX Duner *Outlaw Innovations* Team WeeWah Racing

06-10-2012, 11:13 AM	#4 (permalink)
King Gordon Member Join Date: Apr 2011 Location: Mesa AZ Posts: 60	Thanks for the info guys- sounds like I'll be buying an Athena then.

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