Who uses them? Who has used them and dont like them? What are the Pro's and Con's?
How hard are they to install?
How long do they last?
Thinking about stepping up to one of these for my hemi..

Are they noisy?

From what I've been told a belt drive is the way to go. I have one of those on the shelf and am interested to know as well......

they are not noisy. Tom has one on his blower motor. Chevy ones seem to be noisy, but not sure if they have the clearance correct. haven't gotten to use mine yet.

I like them

They aren't as noisy as the Pete Jackson type drives. Installation isn't so bad. The cam timing is a little tricky to get familiar with, once you know it it's a breeze. Then any changes are super easy. The only negative is that the pulley alihgnment can be a little tricky- but that wasn't too bad either. All in all- a good setup.

MB

We use gear drives,belt drives and chain/gears.It's a matter of personal preference,budget,and purpose of build.All are fairly easy to work with unless you have an issue of distance or clearence,then they are all a pain in the azz.

I had 3 of them.All Milodon type with the single idler. One in a Turbo Buick Stage 2 V6, 340 Mopar and 572 Hemi. All three were set with proper clearance. The Buick and the 340 were very quiet. For some reason the one on my Hemi is noisy. I think it may have something to do with the idler bolted to the aluminum cover. I actually had it in two different blocks so I know its not a clearance issue. Besides the noise, I like the precise timing that the gear drives offer. My Buick has over 3500 street miles with a solid roller and moderate spring pressures and getting ready to tear it down for inspection but don't expect to find any wear or problems with the gear drive.
Based on my experience, I would recomend it to anyone. As stated in the previous post, initial set-up is a little tricky but once it is set, it will stay there.

Allan G.

For the last 30 years I have used the Milodon gear drive and oil systems.Old guys get stuck in their old ways

See if you can make it out on my car .

http://www.youtube.com/watch?v=Ur1y3A23gAg

I am gonna run the milodon this time around.... what the trick to adv/ret them.....

I need one for our hemi, anyone got a cheap one.

I really like mine got two one in the box form my next 542 and one that came with this JWD 452.
First yo put them on with no lower dowel pins and get gear clearance right drill to 5/16 and install 5'16 dowels and that is done.
Trick is there are no timing marks!
so you get your degree wheel on at TDC! one of these is the cats butt for this!!
http://chucker54.stores.yahoo.net/crtusowidewh.html
you turn the cam to .050 lift and turn the crank to the @.050 number you desire and then line the top gear up so 7 bolts line up perfectly and tighten gear then do your regular degree checks to make sure where you are!! the mark things and any advancing and retarding of cam from where you are is done buy lining numbers up to the original 1 mark!!

So if you have a 260 @ .050 cam and you want it at 106 you devide 260 by 2 = 130 then you subtract 106 this leave 24 so you want @.050 lift at 24 BTDC (before)

pictures

Ive run one on my engine for 10 years. Not hard to set up. Had to buy a new front cover. We made an intake and went to alky. Never noticed any loud noises from mine, but you can hear it. Here's some pics, hoping to fire it up again in may. Huricane got the body. Please dont pick on me too much. Everything was built in our shop and we dont claim to be pros, just enjoy our mopars. My 72 cuda. New fiberglass roof being made now thanks to Katrina and gustauv. Got me twice

1

3

4

My brother has one in a 455 olds and another going in a 350. You can't hear the gear drive on the 455 because of the 3.5" exhaust. They do take a little time to install them.

On a related note has anyone ever ran a belt and and a gear drive back to back? My machinist had a single idler gear drive on an injected 355 sbc and tried a jessel belt drive for the heck of it. The belt drive slowed the cars 60' time and as soon as he put the gear drive back in it returned to normal. He came to the conclusion that the belt was stretching a little when the car was taking off and in turn it was throwing the timing off enough to kill a little power. This particular engine is in a flyweight opel gt and revs to 8-9k very easily.

Keep'em coming guys..
What mods if any are required to the after market MP blocks, I actually have a World. 4.5 bore version.
I tried to read the installation instruction on the web site. It would have probably understood it better If I had the parts in front of me, or any experience with these.

My block is a 1999 mp siameese mega block I sent to indy to get decked to 10.7100 then lightend. Just the dowels was the only thing. The block is O ringed since I have 14.85/1

I have installed and used all three of the Milidon, Kieth Blacks and Donovan single idler gear drives for the B-RB & Hemi motors and maybe one of them on a SB Mopar(can't really remember or not on the SB. They are reliable and accurate, some of the early production blocks needed grinding inside the block to clear the idler, some didn't