Harley Davidson Twin Cam Six Speed Transmission Modifications by Short Block Charlie

This is an overview of some the transmission services offered at Short-Block Charlies includes Isotropic Finishing and Back -Cutting transmission gears. For the Twin-Cam 6 speed and the M-8. These modification work well both for racing and standard riding applications.
-Hello we are Short-Block Charlie’s. One of the biggest motorcycle machine shops in the United States, located at 2015 E 5th Street Tempe, Arizona 85281
-WE SPECIALIZE IN BOREJOBS, CYLINDER HEADS, ISOTROPIC TECHNIQUES, SLEEVE JOBS, LIST GOES ON & ON.
-Business Phone: [phone]
Email for Inquiries: [e-mail]
Websites for the Shop-
www.pro1racingh...
www.motorcyclem...

[@ShortBlockCharlie]

If you like the content we make and the work we do on motorcycles feel free to find our websites and shop number in all the descriptions on the videos! We sure would greatly appreciate anyone and everyone who watches these videos, Subscribe, Share, & Look on our websites in the description.

[@MechanicMax]

Hello Mr. Charlie!! Just a good note.....the twin cam heads you did for me last year performed great. You asked for dyno numbers with the cam I used......116 torque from 2400 up to 5300. Extremely flat curve. 109 HP...quick rise on curve peaking at 5700. Thanks for the great work and our conversations. Extremely usable and fun to ride on street. Not bad for a daily rider and 95 inches.

[@MrBluoct]

Thanks

[@fredmeyer3063]

Are there any 'yellow metals' in a 6 speed Harley transmission? Wondering if a GL5 gear lube is appropriate.. Liked and subscribed. Thank you.

[@ShortBlockCharlie]

Yes it's yellow where the shift ports are. and should be fine give me a call 480 282 3472

[@alanmiller366]

Help, Charlie, do I need to use lock tight on the transmission shaft nuts before I tourq to 85lbs?

[@ShortBlockCharlie]

Yes

[@johngreen9092]

aloha I have a gen 3 transmission and 3rd gear has rounded to nothing where the dog leg hooks up. would you have a replacement 3rd gear ty happy memorial day

[@ShortBlockCharlie]

I can assist you call me at 480 282 3472

[@raymondpontremoli4500]

So, brad new transmission....Do you build brand new ones I can purchase and install myself..???

[@ShortBlockCharlie]

you need to check its a screaming part you can't use new type transmission cases. I would leave it alone

[@raymondpontremoli4500]

@@ShortBlockCharlie As of right now the transmission is running just fine so, if it ain't broke don't fix it...If I do more touring I may just do a complete swap for a 6 speed but until now Im really happy with my RK. I just installed the Fueling 525 Reaper Cam Chest Kit....Now that was money well spent, it really did wake up the bike. You do have to change the ECM so I also installed the new ThunderMax box. I'm really impressed with that system. Money really well spent.

[@JohnDoe-qy8vr]

Sound

[@RobertPerez001]

Does this improve resistance for abuse? I have a m8 with a mild cam and I stripped 3rd gear. I’m looking to get the old unit rebuilt so I can set it on the shelf and have a small price of mind.

[@ShortBlockCharlie]

yes it works great in high horsepower engines. please call me at 480 282 3472

[@chuckycrash]

good morning sir. i am rebuilding a m8 trans. where can i get the special tool to load 1rst gear. thank u

[@ShortBlockCharlie]

call Jims machining they make the tool

[@chuckycrash]

@@ShortBlockCharlie thank u

[@cobraman5879]

Can you make gen2 not neutral chatter and stop 1st gear clunk

[@ShortBlockCharlie]

yes we can install the M-8 low gear cost is $80 extra

[@cobraman5879]

M8 low gear will stop neutral chatter and the clunk

[@cobraman5879]

It will fix both problems

[@ShortBlockCharlie]

@@cobraman5879 yes it will

[@joelchambers3087]

@@ShortBlockCharlie so the whole reason for the neutral chatter noise is the countershaft first gear?

[@yamahchopper]

How much does this upgrade cost

[@ShortBlockCharlie]

cost is $450 plus parts