4.6" bore Gen 2
You look like you might be able to answer this question for me.so in a stage4 kit on a 88cu in what performance mods are made when you get the heads and cams as far as timing goes
Here's my 4.6 bore and its a EVO.
Must be race only no fins down lower to dissipate heat
Are you running the plate behind oil pump or seal?
Really like the look of the cylinders!
Bro out here trying to outrun Koenigsegg🤣
Is this what it takes to make 200hp out of a Harley?
Liquid cooled ??
I don't think the Dane has much to worry about
How the cooling with the fins like that?
What kind of numbers are you hoping to get out of it? 👀
Cool !! If the stoke is 4.5 which we don't know it could be 150 Cubes ..but at this point it's just jugs cuz there is no Crank in it
Those fins working overtime
150 inch ?
Nitro build?
She’s a looker! I bet it runs like a raped ape !! Got a twin cam adapter plate ? 😆
That will scatter parts well!
4.6" bore x ??????
Like to hear it run
Axtel Cylinders?
Street motor 10.5 compression
What's this bad boy's capacity thanks?
My 145 makes 178 on pump gas running 15 years street ridden.
Anything built after the Evo is a rice burner
Beautiful
Another 124 ready to assemble.
Surprised more guys don’t have a program set up to label the heads they modify for all to see 👍
Now try cursive
Why a manual release I’m installing acr in older 110 heads.
I like how a chamfered squish band helps combustion efficiency, supporting higher compression ratios while avoiding detonation.
Bathtub chamber. Introduced by Jerry Branch.
Is this your Casting Randy?
For those who need to understand what they're looking at it's the head to a stump pulling machine 😉
So what do they flow?
These guys are not engine designers the Harley big bore v twin is the most vibration producing engine made which cracks its casting strips its threads & breaks down constantly why because the huge piston diameters produce raw power but uneven rotation all V twin engines even Vincent’s 50 degrees engines are rough they got away with its high speed because they kept the cylinders down to a 998 cc All V twin engines even layouts that are not 88 or 90 degrees are rough they produce uneven vibration & the only way to keep the vibration to a minimum was to keep the piston diameter down to a 1000 cc .
Are you still dealing with R&R?
I need a 124 that hits hard
Art work! 🔥
Randy You are awesome!
Sure is pretty
Good to See you are still at it Randy after all these years
Hello, Randy, keep it going up there! 👏 The king 👑
Bubba Stevens
not enough head bolts
1st quality craftsmanship
How much does it cost?
Clean work!!!
Absolutely beautiful
Get down with your bad self!
New from R&R Cycle
M8 flywheel assemblies.
Balanced for force and coupling.
Ask Greg Dahl of GMS if they will take a pounding.
Randy I hope your doing well, Okinawa Japan checking in.
A1 Cycles has lifetime warranty on theirs
Been checking couple unbalance for ever . Very important to correctly balance as when dynamically balancing a harley you can see this and fix it as you can static balance and see it. When the assembly is spun you can observe left and right flywheels. Some pro ? Told me you can't. Well over 45 plus years of spin balancing you can especially on stewart warner machine Warner Rilley would agree! RIP
Bullit proof
Today's work, M8 drag barrels.
On a good ole Fadal!!
Love our 4020 🤌
M8 drag barrels 🤣...one pass with that piece of shit motor and that's that folks
Today's work, proofing a new base profile program
for an S&S 143 crankcase.
What is that
Today's work- finish Stage 4 head work.
I have a set on a 107 it made 121/122 @ 10.7:1 with T-man 625 cams and a Bassini 2 into 1. Great low RPM manners and pulls from the bottom to the top.
Lookit that chamber
That must really increase the horsepower......
You're a bad ass Randy
Can a 2020 use gen2 heads
Are they from radical racing
Duy Duy e muốn 1 chiếc như vậy khum ?
Gosh this just reminds me of spring and rippn up the road
💯👏👏👏
Upside down. Oops.!
Do you have a EVO program for my new never cranked S&S V124 heads? Nice Short Turns, Back Cut on both valves for my sake. ?
Super nice !
Whoooooaah!!!!
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When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted.That's pure engine-porn..😀
What’s is this in cubes
Looks a lot like mine! How many cu. In. ?
That's awesome 👍
Very cool!
New from R&R Cycle, flywheel assemblies for rock solid street and strip applications. Ask Gregg Dahl if these will hold up on the drag strip.
Wrist Pin looks to small. Lol
Quality
Born in New Hampshire 👍🇺🇸🇺🇸🇺🇸👍
Go Reggie!!
Wonderful
Awesome 👍
I do not understand the oval wrist pin holes.
The 143" believer maker.
Big bores are fun, but it sucks getting worse mileage than my pickup 🤣
only thing visible is his gray beard
How to tell someone has never ridden Japanese
These guys never stop with their plastic wrapped around a 15000rpm sewing machine!
He rode the clutch all the way down the hill! 😆 👍🏻
That shit sound like a beast
✌️🖤🤠 I’d like to take it for a ride!!
It will run good but not long.
Keep looking up
Dijud ta kita og mga click 123 diha polus bigbike
All you need to do is re-engineer the motors and transmissions and they are great bikes...
Come and play with us Hyperformance
How much power did it make?
oh look it's another Hardley Driveable....All the same and outta the box you hafta drop $20000 back into it to make it run. ahhahahaha
Another Harley Bro AARP meetup.
Nice bike
👍
black motorcycles are the most dangerous vehicles on earthESPECIALL DRESSED ALL IN BLACK AND A BLACK HELMET , THEN THEY COMPLAIN NOBODY SEES THEM
When you got to dump all kinds of money into your bike to make it fast yet you still can't beat a stock 600 cc Japanese bike what a joke
It’s a fucking 2 cylinder…. Get over it
Opening up Ultima crankcase for 8-1/2" o.d. flywheels.
I thought stock was 8.5" ??
How many inches will that engine end up being?
My butt was clenching
Sounds like my old vari drive Bridgeport
Pick up quill less chatter
To what end , torq monster
We all know what happens to aluminum when it gets hot while milling.
Soon to be a broken Harley
Ain't my case. And I'm nervous. Bklyndragon13
that mill head sounds really gd ? LOL bearings n bushing gone
Your bad ass.
Do you put dowel pins
Sweet!!
Randy, stupid question, wouldn't it be better to shave the wheels and lighten them then to open up the cases?
I wouldn’t waste my money on Ultra anything
No shooting water 🤷🏻♂️🤷🏻♂️
What? 5-1/2” OUTSIDE DIAMETER ? Idiots
Your a bad Man!!
Today's work, removing 3/16" cast iron material in 45 seconds with twin boring head.
Dam thats a hell of a tool charger to handle the weight of that... nice work
Lot of tool pressure
Fadal 4020 shhhhtuff
Randy makes the best cylinders!
143" shop bike
See you there
It'll be a long drive for me sir
Was good to see you and Mike!!
10-4 will see you then
Today's task, make tool to check stem protrusion.
Come get em.
Later today task, make me one and sell it to me 
You're checking protrusion from a spring seat that you HOPE is cut the same as well. Stack it all up.
The tinker master make an adjustable rocker and sell that to the m8 masses That allows a mismatched over night valve job that don’t have to be perfect
We took a failed 131 back to 128" with an increase in torque and no loss in power. Drago 555 cam.
Very nicely done! That's quite an improvement
124 s&s makes 150 torque with that and about 147 horse I can’t remember
What heads?
That Drago 555 looks like a GMR 555
Big Jugs at their best.
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When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted.For sale, details to serious requests only.
Let me know who gets it.
Can you message me or should I call
I can’t tell from the picture is it sportster cases or delkron 4 cam?
Need to take that down to the t&o drags
If I only owned the bank.
Can I take it for a test ride?
ex bill furr
Is this street legal 😂
Interested in this bike
Looks like my bike, it's why I'm interested in your bike
Wink
Today's work, 4.800" bore Prostock cylinders.
Love watching machining and the smell of the cutting oil
Wouldn't a lathe be better for spigot.???
Amazing work Randy!!
Best Custom Ductile Cylinders !! Thank you Randy and your team for amazing work.
Take some videos as you do machine work on my black chopper also! I’d love to see it.
Getting ready for the Humboldt drags.
U continue to do beautifully one off precision work ! Fact iz ur a dying breed my friend ! I salute you on ur continued work !
That's cool stuff Randy.
Ouch!
You the man Randy
Iowa!
Aluminum 143" cylinders with internal oil drains and base nuts.
Those cylinders are awesome
How much?
Very nice!
Will these fit on my 120r
Do you have twin cam cylinders with internal drains also ?
I still need to grab me a set! 😁
I love it
I can’t wait to try a set
The best
Need that
How much for m8 2024
Nice
What a simple Andrew's cam can do.
Any headwork and what compression ?
Any news on a shovelhead with an Andrews cam??
Not just a simple cam🤣 but yes that torque curve is quite nice
Andrews has some of the best grinds out there, everyone wants a custom cam while the company that grinds them all knows best.
What grind, bore and stroke.
There's a lot more than a simple cam
Great lil cam
That’s the cam I run. Very happy with it.
Great cam
Impressive