Engine Building 101 Timing Gear Drive

Engine Building: Timing Sets, Gear Drives, How To
Here is a comparison of the different types of timing sets and how to install a gear drive set in you Small Block Chevy.
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[@zippoman8779]

great video. very helpful and answered many questions I had.

[@randywatts7085]

I love your videos so helpful and easy to understand You have saved me a lot of money And thanks for keeping them real A lot of guys try to make it out like its rocket science

[@lorriearmenta1618]

That was great helped me with my 67 Malibu first time gear drive can’t wait to drive it Zac helped me muscle my clasick Malibu

[@neilray8416]

Thank you. I certainly learned from your video. Very well explained.

[@bruceleroybell8139]

Thanks for the info on gear drives, very valuable to me. I am now much the wiser.

[@anotherbluenova6358]

But are you?

[@jerrycoggins1607]

Great video! Keep em coming!

[@pnwchris2000]

I’m putting my first ever gear drive setup on an older used ZZ4 crate engine I picked up for my ‘91 S10 tomorrow afternoon. Looking forward to it.

[@trey87chevy]

Can you make a video on how to install hydraulic roller cam into sbc with the retrofit cam and lifters ? Need to know about installing the thrust button and recommended parts

[@mikepoint4717]

Great how to video, thanks a bunch . I just purchased a gear drive for my 99 Sonoma project

[@ZaksMuscleMotors]

Awesome! Let me know how it goes!

[@mikepoint4717]

@@ZaksMuscleMotors Hi Zak The install went well , now I have a few things to button up then I can install the 5.7 into the truck . Cheers 🇨🇦

[@ZaksMuscleMotors]

@@mikepoint4717 very nice glad to hear that!!!

[@joshuahammer2744]

Installing my cam in my 66 327 sbc bored .030 over today good video

[@Adrian-Grth]

Hello, I am a newbie & wondering if putting gear drives on my 4 cyl diesel would be better ?

[@hutchautomotiveindy1509]

Good work!

[@DjMetalmike]

I have a stock aftermarket chrome timing chain cover I bought the PRW timing gear set any issues with clearance? I was told to mark the cover with a dab of grease before I put the gasket on because if it rubbed a little ,with a gasket it won't so the cam can float back and forth

[@Jstall7543]

Good video! Thanks!

[@dan43213]

Just bought a 80 Malibu that has this. I like it. Sounds good.

[@ZaksMuscleMotors]

Yea they sound bad ass!

[@mauricebrown592]

GREAT VID!!!!

[@killamike6403]

Will this be good for a stock 350 tbi?

[@dannywillix755]

How do you get the clearist from hitting the timing cover

[@mechanic808]

What about engines with ridiculously long and multiple timing chains like the Chrysler V8's or Ford V6's made today, what kind of chain would you use on those ?

[@48Marlon]

Thanks Zak

[@ZaksMuscleMotors]

Marlon Myers you’re welcome!!!

[@Joker-joker43]

Thank you this was every helper to me thanks you zac

[@jeffcoakley5675]

Just wish smart people would stop saying um before a sentence Great info about the topic Keep up the great work

[@garywilson12]

great info, thanks

[@ZaksMuscleMotors]

You’re welcome Gary

[@oscarpuente2029]

outstanding!

[@jimjd6895]

I have a1995 Chevy 4.3 can I use a gear drive timing set on it

[@W0GUN]

This is what I thought about doing it , and this is something I was looking for. Do you think that such set will be available for 1999 Dodge Durango 5.2 l? You have a link to the producer or store

[@ZaksMuscleMotors]

L.A.C. I’m not finding anything but I will continue to look

[@chevypower5737]

Can I use this gears on a 350 Tbi ? 94 silverado

[@billietravis5765]

Very help full

[@johngrepo9976]

The pete jackson quiet gear drive is still loud. I never thought i'd remove mine but i did,replaced it with a Cloyes double roller. 🙄

[@bryanroupe8646]

Looks like the same gear drive I have in my 347. Cheap speedway piece think it was $50. I have spun it to 7700 without issue many times.

[@TheGarywilliams]

Why is gear drives transfering harmonics a bad thing ? I have ideas but i want to see what you say.

[@ryantransfiguracion3537]

good knowledge

[@ZaksMuscleMotors]

Thank you

[@MasterChief-sl9ro]

All of them have there place. As High HP and Torque motors that rev fast will make use of the gear drives. There just that much stronger. Endurance cars are better fitted with Belt drive like those from Roush Racing. If you got $1500.00 US for them...

[@yazming1720]

Hi Zack. ...who makes the best timing gears in the industry for a sbc?

[@ZaksMuscleMotors]

Yazmin Gamboa Comp Cams, Pete Jackson and Cloyes would be the top three I’d say

[@TERMIN8TOR99]

Why does bigger gear go left, and would it go right on a right hand drive boat motor

[@ThunderHead289]

curious, how did the gear drive do for you. have a beater engine and one hanging on the wall. have to go into the engine and considering putting it in for the sound

[@ZaksMuscleMotors]

ThunderHead289 well to start off, I love your videos and watch a lot of them, so the fact that your asking me is pretty damn cool!!! The gear drive has always worked well for me. This motor in the video was turning 8K and it held just fine. Never had an issue. Love the whine and accuracy of them. Thanks for the question!!!

[@ZaksMuscleMotors]

ThunderHead289 and if you wanna talk about it in depth give me a call bro 7655247362

[@ThunderHead289]

hey, I appreciate that! hope the videos are helpful! im just a normal guy trying to keep his junk cars on the road - i think there is a lot of hearsay on the internet regarding gear drives destroying engines. im very tempted to throw one on the Rotstang when i switch the cams. trying to find a budget unit, but at the same time, one that is not going to fly apart. it seems like there is no pete jackson anymore!?

[@johngrepo9976]

@@ZaksMuscleMotors k

[@donaldjumawan8100]

can we get the timing through rotating the engine with out removing the idle gear,,

[@ZaksMuscleMotors]

Donald Jumawan what do you mean?

[@allenmckinney9533]

Anybody know if these can be used under factory plastic covers?

[@ZaksMuscleMotors]

Allen McKinney check with the manufacturer there are differences

[@carlossilos-ms5tu]

Does the distributor still point to cylinder 1 when setting the initial timing?

[@ZaksMuscleMotors]

Yes

[@KeeleDesign]

I bought a new cam for my 327 small block Chevy and I’m curious if these your drives will work on mine

[@ZaksMuscleMotors]

Brandon Keele yes it sure will!!!

[@KeeleDesign]

Zaks Muscle Motors Does a 327 have a cam retainer

[@ZaksMuscleMotors]

Brandon Keele those old gen 1 blocks are just like he 350 no retainer, unless you use a gear drive it uses a cam thrust button.

[@KeeleDesign]

Zaks Muscle Motors thanks, i know for 4cyl all day long, just now learning this old school stuff on my 73 f100 and 68 impala I decided double chain drive in the end

[@ZaksMuscleMotors]

Brandon Keele chain drives are great for stock stuff especially the double roller, can’t really go wrong.

[@jayrockblas-pyka2195]

Can you build adjustable cam gear on fly? Nobody makes for my motor z24 nissan

[@ZaksMuscleMotors]

No I can not

[@rickhettwer854]

Was your 3 gear drive mounting bolts smaller diameter than your holes in the gear ? if this is the case, what about the slop in the gear holes ?

[@ZaksMuscleMotors]

It’s been so many years since I’ve done that on that engine but I’m not mistaken the polls have a slight taper outward past the thread that brings the gear moda center. The gear spins true and it doesn’t wobble or move back one way or the other or bind anywhere that’s it

[@mikem4851]

I have a 454 in a motor home built on a 1984 Chev P30 chassis with 80K miles on it. I'm a electronics tech with a little self-taught knowledge of automotive repair. I've been told that the mid 80s was the era of nylon timing gears and cheap chain in the 454. True? (I've seen a set of nylon gears that are stripped, and supposedly the 454 had 65K on it when the gears died). I was also told that I could do a lot worse than replace the nylon gears with steel and swap the chain for a gear drive. True? I'm not interested in fake turbine whine, just good solid quiet performance and not having to touch the timing chain or gears again. So what brand of gears do you recommend, and should I go with a chain or a gear set? And what brand on the chain or gears? I've heard that Milodon is one of the best.

[@gregrichards8449]

cloyes gears and jp performance

[@tyranducksworth1913]

Question I have a engine thats in my truck its runs good would two different cylinder head affect performance one head is has 1.94 valves the are I think 1.74 i think I have a book the engine codes that head is not listed. Found something only it’s a over the counter replacement head with 1.74 valves

[@ZaksMuscleMotors]

Tyran Ducksworth absolutely it will. You basically two different engines right now.

[@tyranducksworth1913]

Thank you

[@camaroguy2919]

Hey, zack you were talking about harmonics is ther timing gear set I can put in an existing running engine without worries?

[@ZaksMuscleMotors]

What do you mean without worries? What’s your concern.?

[@camaroguy2919]

@@ZaksMuscleMotors will it cause any wierd vibrations. I have a stock 305 that I'm going to be rehashing and I'm thinking of going timing gears. Instead off the chain.

[@ZaksMuscleMotors]

Well that’s hard to answer one way. If your engine is healthy and runs good and balanced decently sure go with a gear drive. But as far as a stock 305 it’s not gonna really add a benefit for you besides maybe a whining sound. For the added cost and no real gain I would use a stock double roller chain.

[@IlhamDefraN]

why the gear teeth is spur? isn't a helical be more quiet? or are there any gear driven camshaft aftermarket kit for LS7 (or other GM LS, or small block) with helical teeth gear?

[@ZaksMuscleMotors]

Yea there is one for the LS platform, it’s $770

[@proles101]

I've been a mechanic myself for 35 years, but recently had someone ask why most timing gear sets use 2 diffent size idler gears and I wasn't 100% sure. I believe it has to do with wear pattern, having the smaller follower allowing it to ride on different and or fewer teeth, but thats really just a guess, anyone know for sure either way?

[@ZaksMuscleMotors]

You know I guess I never put any thought into that, but I’m curious now. I’m gonna have to find out.

[@DjMetalmike]

Did you ever make a video of how the gear drive sounds? I bought the prw noisy set . I should be installing sometime this week. . I called them on the thrust bearing the tech said they’re not necessary on a non roller motor .

[@ZaksMuscleMotors]

This is my Facebook page and a quick clip. You can hear the whine a good bit over the open headers fb.watch/4P8FBsM7Mo/

[@ZaksMuscleMotors]

I’m blocked on Facebook for 30 days feel free to call me

[@jacksonmarshallkramer5087]

Pete Jackson is the king if gear drives. They were hugely popular in the 80s. A gear drive is called the poor man's supercharger. They make a whine like a blower.

[@ZaksMuscleMotors]

Yes they are, I love the sound as well.

[@roberthoward7484]

When i try to put my idle gear in the cam spins off a tooth

[@roberthoward7484]

No sir

[@King-qv1pd]

Do you know where I can get a two piece timing cover where one half of the timing cover comes off so I can adjust the timing without removing the whole timing cover or Harmonic balancer? Do the Gear drives work with factor hydraulic lift cams?

[@ZaksMuscleMotors]

m.summitracing.com/parts/cca-210 My parts guy can save you money on it too!!! Contact Rob Rouch m.facebook.com/profile.php?id=100000569022569&tsid=0.27291322289966047&source=typeahead

[@grantmara769]

ebay

[@King-qv1pd]

oh ok thanks. Do timing gears work with on hydraulic cams and lifters?

[@grantmara769]

it will work with both i even put a gear drive set on a complete stock motor

[@King-qv1pd]

Anyone know if Gear Drives work with EFI systems? I thought I had heard they might cause an issue? Something possibly to do with the vibration from the gear drive system and vibration? Thanks all! I wanna do a engine with a Gear Drive and efi as well as with a factory Hydraulic cam. I have a corvette cam from a 1969 to a 1971 corvette I wanna say brand new. I wanna use and my dad used on a 1972 Corvette 350 with everything stock on the motor and it smoked the tires like no body's business with side pipes. My dad built the motor for a dealership's owner and you could hear that thing over 4 blocks away just running.

[@StonedCherry1]

its used on a vfr 400cc and that runs why more than 6,000rpm

[@russellmooneyham3334]

Good basic info. However, one should ALWAYS drill a1/16th hole in the lifter galley plugs to supply oil to the gear set.(on a Chevy small or big block. Can't opine on other brands, because I'm a Chevy guy) This is extremely important. Otherwise. The gear set will wear too quickly and introduce metal shavings into the oil. Not cool! Plus is always a good idea to use a high volume oil pump to offset any loss of pressure from aforementioned galley plug holes.

[@ZaksMuscleMotors]

Russell Mooneyham I actually cut a small channel on the outside of the bearing to allow oil to the gear

[@rossstiver7249]

I'm not sure if you are still answering questions or not but I'll ask. You showed the thrush bearing install on the upper gear of the gear drive. Is it necessary to have one installed if you are running a flat tappet cam with a gear drive. I never had any cam button on my sbc's when I was running a flat tappet cam

[@ZaksMuscleMotors]

Are you running a gear drive or chain drive?

[@rossstiver7249]

Im getting ready to install a gear drive in my vette. It is a 68 with the original L79 in it. Its a flat tappet cam with hydraulic lifters.

[@ZaksMuscleMotors]

Yes use the thrust button. I have flat solid flat tappet lifters in mine. With the gear you don’t have the little stability added by the chain the button is a must

[@rossstiver7249]

Thanks for the tip. I just finished buttoning her up. Pun intended. Still need to put water pump and alternator on but its getting there. Thanks again for the tip.

[@cruisescape]

Hey Zak Lamb..... I have this set up in my 85 Monte SS here in the UK.. needless to say Monte Carlo's are pretty rare here, never seen another at shows or for sale, so total lack of support.. anyhow you mention vibration being transfered to the block... how can I reduce this? is there anything I can buy? I don't know? maybe a Harmonic Balancer? sadly I don't know the 305 at all but I know mine engine has a few upgrades.. headers, H pipe, HEI diz, Holley carb, pro-flo air cleaner, 600hp rated prop, elec fan, but I want more power maybe 300hp but want to address this vibration thing you speak of...... I'm about to install Lunati cam kit, double valve springs etc.. grateful if you could take a lil time out on me.. regards

[@ZaksMuscleMotors]

Hey Shane, thanks for your question!!!! When an engine is rotating, the mass is moving in a couple different directions, reciprocating and centrifugal. The vibration comes from a rotating assembly not being completely balanced. You have a couple options, but first let me say, with your 305 you won't have an issue really unless your turning some high rpms or your assembly is way out of whack. You'll be fine the way it it. When you start making more horsepower450-500 and up and turning 6,500 rpm or more you really want to consider taking out the rotating assemble and have it balanced. Also, a fluid damper ( harmonic balanced ) can really help cut down on vibration. I'll make a video to explain more for you in a day or two and post it. Hope this helps. Any other questions please feel free to ask!!!

[@cruisescape]

Hey thanks so much for the info... like I said new to the 305 so a learning curve plus this Gear drive lark is all new to me, if it was a LB7 Duramax I'd be good lol!! (my other ride)

[@ZaksMuscleMotors]

+Shane Pearce no problem man any time

[@TheRoguelement]

Dear friend . PLEASE Do yourself a favor Throw your Gear Drive away ..and purchase a Good high quality Cloyes Timing chain & set . If your really thinking about performance up grades get an after market set of small CC Aluminum Cylinder heads and depending on which motor you have try the Comp Cams 268H if it's flat tappet . and use a nice high stall speed T.C.like in the 1000 over stock range remember the stock heads are whats keeping you from making any meaningful performance improvements THEY SUCK...but there are any number of great balancers out there for that motor made by ATI.TCI ..just make sure it's NOT been dropped if your buying used look it over real well ...good luck..

[@dodgedaytona25]

Does it matter if the large gear is on the right or left?

[@StephenWilliamsonBodyBlast]

Yes it matters... the smaller gear should be on the right.

[@erickrice375]

When u say left is it the driver or passenger side

[@cheezblock4lllll]

The timeing set can rip people in half Like specs would be pretty darn important for this application. Looks nice will sound nice an will last

[@therickashesoloband]

do i install the distributor at dot to dot?? or do i rotate the dot on the cam gear at 12 oclck??

[@ZaksMuscleMotors]

Rick Ashe they should point to 12 o'clock. Are your heads on it?

[@therickashesoloband]

yes heads are on

[@ZaksMuscleMotors]

Rick Ashe if you're ever unsure after it's put together, take he number 1 spark plug out, have someone bump the starter with your thumb over the spark plug hole, when you feel the pressure you're on he compression stroke. Have them stop, and move your timing mark to 0 on your harmonic balancer. That will get you at TDC on the compression stroke to fire your number 1 cylinder in time.

[@therickashesoloband]

hi zak thank for your help what im confused about is the dots... dot to dot on the cam and crank so when do i move my cam at 12 oclock position is that after you have your crank at dot to dot??

[@ZaksMuscleMotors]

Rick Ashe yes, line your gears up just the way I showed you in the video, then when you are ready or the distributor those dots on the cam and crank gears will be at the 12 o'clock position for the compression stroke.

[@squarebodyg5354]

Did you use anything on the gears for break in?

[@ZaksMuscleMotors]

squarebodygangster 84 just the break in oil in the motor with the rest of it

[@squarebodyg5354]

@@ZaksMuscleMotors good to know! I put a new cam in and decided to use a gear drive. It's a stock bottom so only break in lube on the cam and use valvoline VR1 10w30

[@Upstream808]

Now what if your crank sensor touches the gears ?

[@ZaksMuscleMotors]

What is it on?

[@samjohnson6593]

my prw didn’t have a dot on big gear

[@ZaksMuscleMotors]

Really? Someone was sleeping on the job that day lol. Did you send it back?

[@Tablesaw818]

Why is one gear smaller than the other on the idler gear?

[@ZaksMuscleMotors]

Macho Man no idea never thought about it honestly lol

[@georgepenza9447]

Rrookie here, but I'm guessing it has something to do with the torque and clockwise duration, the pull, like where the chain would stretch and slack most on a motorcycle

[@zlutz814]

Reminds me of rush

[@sweetness34km]

I have a silent pete Jackson i think his are the best

[@johngrepo9976]

The quiet model is better than the noisy one. Get that model, you're going to be happy

[@blairjosephbernard2011]

I got a question how much power does the timing gears add to the 350?

[@smh9902]

They don't add power. They increase reliability, durability, and longevity.

[@stevenneuwirth871]

what keeps me idler from floating

[@ZaksMuscleMotors]

It’s supposed to have some float or it would bind. The peg on either side keeps it from walking too far.

[@melvinwilliams909]

Can u help me time my truck

[@ZaksMuscleMotors]

Yea

[@offroadadventure3972]

On Petes Garage he installs cam button opposite way with flat facing toward cam See vid at 2.40min kzbin.info/www/bejne/gWawdqh-m5mribc Can anyone confirm which is correct or if it does not matter ?

[@ThePaulv12]

If you want the sound don't install a Milodon single idler as they are completely silent if you set the gear lash the way the instructions say. They are as silent as a crappy $15 Morse chain.

[@raymondturner9290]

Just wanna say me and my buddy built his 350 and did the same gear set up and ironically had the same paint color😂

[@ZaksMuscleMotors]

Lol they say there is always someone out there doing the same exact thing you are all the time. I guess our paths crossed for a brief moment lol

[@mattrappazzo6461]

You forgot the whole install part of the video...haha

[@Chris-sx3he]

Doesn't NASCAR engines use timing belts?

[@ZaksMuscleMotors]

Chris Durham they may, I’m just not sold on them for long term heavy duty use

[@Chris-sx3he]

@@ZaksMuscleMotors I hear ya, they're expensive as well.

[@killaho95]

..Chevy!..

[@SlimboSlic3]

timing gear sets go out way more than double roller,, I'll never go back to junk gear drive

[@smh9902]

Since when? Henry yunick always used gear drives in all his builds and he'd never ever broken a gear drive set and I've never heard of anyone breaking a gear drive. Ynless you're using phenolic/plastic gears. But if you're using iron or steel (not aluminum) they are virtually indestructible. Hell, I have a phenolic gear drive set on an old 4 banger toyota thats been rebuilt 4 times, this is its 5th rebuild and the original iron/phenolic gear drive looks like the day it was made 50 years ago. Metal gears are indestructible.

[@jjmccloud]

@@smh9902 He's probably talking about them good ole budget sets for $30 lol they do break a lot. Usually not the actual gears but all the other small cheap shit they use to make them so cheap! Spend $100-$150 and it'll out live your children lol

[@smh9902]

@@jjmccloud Obviously you need solid IRON timing gears all around like the old Ford 300i6 industrial engines.

[@natejayyy]

It’s an engine

[@blazer81gs100]

Do u have to play that music that long damn

[@ZaksMuscleMotors]

Awwwww is that your biggest complaint? You must be new to KZbin lol.

[@markgoulette5056]

I know this is an old video, but I'd NEVER run a dual idler style gear drive on anything, especially an off brand like used here. If you want to run a gear drive, a fixed idler, full cover design is what you want to run....not even in the same class...

[@ZaksMuscleMotors]

Same one in it and still running no issues.

[@Mondo_0ne]

Thumbs up for the condom joke!!

[@ZaksMuscleMotors]

Mondo357 lol thanks

[@ricecarkiller]

A Fixed Idler Gear Drive system (Like Milodon )is far better and superior then a floater Gear Drive system like you have shown here when you're going Gear Drive !

[@ZaksMuscleMotors]

True, however if you know what your doing, these are just fine.

[@ricecarkiller]

There is not any skill really need to put a floater Gear Drive in ! its junk.. Fact!

[@ZaksMuscleMotors]

+ricecarkiller your opinion. I've used them for YEARS in high performance applications and never had an issue. That's a FACT. No need to come on here and troll the comments your wasting your time. You need to look for correct lash and clearance with the timing cover. I really don't care what you think lol. Don't like em, move on!

[@ricecarkiller]

Not Trolling comments here nor did I comment on the only one comment that was made here did I "now" ! I made A NEW ("MY OWN") comment in response to YOUR VIDEO ! The comment and watching YOUR VIDEO was not a waste of my time here !You sound just like them crybaby Liberals who call people names and destroy things when others disagree with them and are told the truth !A true reputable engine builder will not use floater gear drives in a race engine and tell you their sloppy and not precise . I'm not here to bust your balls lol . I'm a rear head ,motor head ,etc. like you... just relax have a beer and keep building Zak .

[@ZaksMuscleMotors]

+ricecarkiller lol far from a liberal. You are posting your opinion not facts. For junk they sure do sell a lot of them and never had issues with any that I have used. I don't care if it's a new comment or not your just creating a pot of crap to stir, a true gear head wouldn't sit here and stir shit up on another's page. I will keep building and using a floater cause they work. You can have all your opinions in the world and that's fine but when facts outweigh your opinion you don't have an argument and I don't have time for mindless opinions. Sorry to be so harsh with you but this is the kind of stuff that gets under my skin. Again is you don't agree that's fine, comment if you like, but don't be shocked when someone calls you on your bs. Have a good evening, like, share, and subscribe!

[@rowanhill4888]

So you.didnt actually show the installation.

[@oggramm]

Go to 6.37 minutes to get to what you came for

[@ZaksMuscleMotors]

Maybe what you needed but not everyone else.

[@smh9902]

Henry Yunick always used gears in his builds. Realistically, why not use gears? They won't break. Ever. Period. Just stay away from plastic/phenolic gears. Iron gears will never, ever ever break. They never stretch. There's no disadvantage.

[@johngrepo9976]

The gear whine will bug you after a while

[@smh9902]

@@johngrepo9976 No, I drive a 1966 F350 with iron timing gears in the 300i6, I love the gear whine, and I love the reliability even more. The louder and more obnoxious an engine is, the better. I even cut off the factory muffler and put on a glass pack for efficiency. The cab has no sound insulation, and its been my daily for 5 years. I'm not like most people.

[@fasnuf]

I don't even buy commuter Hyundai's with timing belts, let alone my race motor. Dumbest idea in a while. IMO

[@dabosue05]

Condoms and belt drives😂

[@amishrobots]

gotta wonder what this guy uses for contraceptives.. gear drive?

[@ZaksMuscleMotors]

Lol bareback

[@AnthonyMiers-o3p]

Say um enough times

[@ZaksMuscleMotors]

Um, thanks for the watch time! Where’s your videos?

[@droystondr]

H

[@davewalsh4743]

Funny

[@lluwd]

Uh.. uh..uhm..uumm..uuuhh…uh..

[@ZaksMuscleMotors]

Ummm what lol

[@jakewingfield8550]

Your seriously taking advice from a guy wearing sweatpants or shorts. Dog bone gear drives are garbage. Double roller timing sets are great for replacement or mild to medium street performance engines. Belt drive systems reduce harmonics from the crankshaft to the valve train as well as reduce friction. Single idler gear drives are used for high performance applications where you are driving pumps and such off your camshaft. Educate yourselves people.

[@ZaksMuscleMotors]

Jake Wingfield I sense some major butthurt