Harley Cylinders Bore and Hone HOW BIG?? - The Archives - Kevin Baxter - Pro Twin Performance 

My deepest respects Mr. Baxter. That is not only very skilled work, but its a whole lot of it. LOL. thanks for taking us with you to work again. BRAVO!!!

This is exactly why skilled labor should pay and pay well. Very few folks with advanced degrees could do that work. People also always piss and moan about shop labor rates. Look at the cost of the tooling in your shop and it should tell everyone why shop labor rates are so high. Folks, if you find a shop that is top notch then support it or it will be gone. The tooling in Kevin’s shop is just one part of his overhead. There are fixed costs to a business that state the owner in the face every day. You have to turn out do much work each day/week/month/quarter etc before you are in the black. Each day is a new day and when you unlock the doors you are immediately in the red on that day. Great video Kevin as always. 👍🇺🇸

Honing has evolved since that 389 Pontiac that I was taught how to remove the glazing from, engine in, metal case drill, rock hone, after hand ridge reaming, in the driveway... Really cool to see professional work done meticulously. I'm glad to know old school values still prevail!

Ultimate Professional. Period. Definitely Different from 45 years ago boring & sleeving automotive engine blocks at your Mom & Pop's parts house/shop... Love your work. Love your videos. Thank You!

Watching you work is like watching Allen Millyard work. Love it. Admire it. And feel totally amazed and confused. Respect!

Refreshing to see the great relationship you have with your employees, Kevin. Thanks for everything!

Really enjoying your videos! Just something I learned in life, great employers, most often surround themselves with great people, and great people want to produce for great employers. Much respect to you and your organization!

I like the fact that you are showing us what it takes to get the professional results that we want making it easier to justify the expense of doing it right vs. having it done by someone without the tools and/or the knowledge.

Very interesting to me! being a machinist of 30 years I’ve used many manual and cnc machines over the years and worked at a dozen or so different shops. I’ve not been around automotive specific machinery so it’s interesting when I see the videos showing them in use. I admire the precision holding tolerance to the tenth on the machines your using. We do it on todays cnc machines but it’s easy to adjust comp or offsets a tenth. It’s definitely a process being able measure in tenths making sure everything is clean and set properly and temperature stabilized. I have a Hammer 1275 kit in an 03. I picked it due to the fact they use a high grade material for the liner to avoid cracking. I plan do more big bore kits and will likely go same route of buying cylinders with materials designed to function at a specific bore and thickness. I appreciate your knowledge and skill, and your ability to entertain all in one.

Checking the chips. Yes sir! Adding that to the education arsenal! You can always tell a mechanic from a machinist. I didn’t like to say for a long time, however, it’s the truth. There are exceptions, but they are few. I am not a mechanic. Why? Cause I’m way to slow and “worried” about tolerances. Thank you again for this channel. Never stop. When that day comes, you will be missed.

Amazing stuff. I sure miss the shop atmosphere.

Thanks Kevin, This helps us cycle guys learn more about the internal nity grity that it takes and such precision that we often take for granted, and help us understand why shop time costs what it does with it being labor time and machine time something we can't rush thru, and thanks for pointing out any weak points , I love very much watching motorcycle engine building lately, I think I missed my calling career wise, this would have suited me perfectly, especially working for a family run shop, where employees tend to get better treatment n respect for going out of their way to help make clients happy and the business a success !

I like the lines of the Pan in the background.

That's really intense work.

Great informative video Kevin. I was never "bored" with it.

Thanks AGAIN for another very informative video, well done sir.

Great machine shop. I had never thought about compressing cylinders whilst boring and honing, makes sense though.

It would be a privilege to have you work on my motor. Worth every cent.👍👌🍻🇦🇺

these guys are the best in the business,very nice people also,cant wait to hear my EVO after the mad doctor[kevin] casts his spell upon it ,great video brother

Love the attention to detail. respect

Just love the precision.

Awesome work Mr. Baxter! Sure would like to have a conversation with you on plans for my upgrade. Thanks for all of your informative videos and precision work!

Superb information as usual - thank you, sir! What is your take on the brand-new S&S 129/132 cylinders (for 107/114 M8's) with 4.32" bores? It seems as though S&S has taken the thin spigot thing even further than Harley did on their own 128/131. Unless there is funny math involved, which I doubt, these new (S&S) offerings take things even further as far as challenging fate, so to speak, in regards to longevity, notwithstanding the supposed super-duper-mondo-beyondo metallurgy involved that will save the day. Very interested in you views on that subject. From southern California ~ Ride Forever!

Thanks for the video.

Have to say another great video, you and Pacific Mike are only video s I watch.great work.

Great workmanship!

Thanks Kevin great to see more content

Thanks for sharing Kelven

Your videos are the best. Thank you

could you make a video of just a tour of your shop and all the amazing tools and machines?

I got a CV-616 myself - love that machine!

Kevin, have you checked where the cylinder is bolted to the case that the case is 90 degrees to the conecting rod. I have seen some cases that are cut on an angle, which puts the piston in a bind, excessive wear and heat. Keep up the good info.

Very informative

Awesome stuff KEVIN i did the 20,000 mile service on my street glide m 8 107 stock motor. and noticed at the oil filler cap the bottom of the threads there is a rough casting. and i wiped around that area and picked up some aluminum flakes. have you seen this iam sure you have alot of motors apart to check that out.i know you are super busy maybe you can get back to me Thanks.

Love from DeKalb Mississippi USA 🇺🇸 Home of the bloody 43rd

I like to see he’s videos , and my respects too to him , I wish find some like him for engines bmw boxer because it’s what I owns any way I enjoy see his videos

great job sir

Was wondering how you check surface finish parameters such as Ra, Rp, Rv, Rq, Rv, etc.? I was a Manufacturing Engineer at 3 major engine producing plants including Harley Davidson. As piston rings became more sophisticated so did honing requirements. Often these days plateau honing is required which is a 2 step process.

I like to do my final hone without stabilizers and using 820 stones - can't beat that finish for molies.

great video Kevin on these s&s 4.250 cylinders for m8's wonder how far they are taking them out.luv them ck10's you got

Love your videos. But you need to invest in a HQ cam.. ;)

👌

You used the term "Plateau honing" is that the same as cross latching on the old iron cylinders that I'm familiar with?

Kevin I have a question, are you able to get thicker spigots and bore the cases instead of the cylinder! I'm asking if I had a square crank and timkin bearings in the bottom from my 96 ci. What would be the end results, 103, 107 or something different? I'm hard pressed to figure those things out bore and stroke stuff combination? I also have a CVO 110 an it's all the stuffing I require. It's a 2011 an the 96 is a 2008 both touring models. I just came across this video today. Hope you see it. Mitch.

At what point would you say it’s best to plug and weld the crank pin? Obviously many factors involved. My bike is an 02 dyna low rider. Not a stunt bike or a race bike. It doesn’t live at high rpm or on the limiter. Just a street bike. But I don’t baby it. “Stage 1” at the moment but I plan on building a stout 95” with some head work (nothing crazy) and a set of fueling 525 or andrews 21 cams. Compression ideally in the 9.6-9.8:1 range. No more than 10. And if I had to guess with a thunder header and big sucker probably 95-105 hp/tq. Just wondering it would be worth it to have the pin plugged and welded or if it that’s no where near the kind of stress that plugging and welding protects against. Thanks for any info. Love the content.

Somehow I would rather go to smaller bore than bigger, to increase the stroke vs bore ratio. As a Shoverhead guy, the modern Harleys are too high revving for me...

kev on a 103 borded out to a 107 running cp corrillo bullet pistons what piston to wall clearance do you recomend mate

👍🏻

Great video. Just wondering what temperature it is to need those fans?

Can you bore tc 4.060 barrels out to 4.125 any info would be greatly appreciated.

Always bore off the base as your reference. The cylinder's deck is not always parallel to the base. It’s not worth the chance to assume that it’s the same. Boring a cylinder crooked will lead to ring seal and wear problems. This applies to virtually every cylinder that you’d bolt to a crankcase.

Should ring gap be determined with torque plates installed on cylinders?

KEVIN, I HAVE TURNED SEVERAL OF MY BUDDIES ON TO YOUR CHANNEL, GREAT VIDEOS! QUESTION: IS IT OK TO SLIDE A CAM IN A 2017 ROAD GLIDE SPECIAL WITH 88K MILES?

What’s your opinion on 95” vs 98” cylinders?

Sooo… what’s the answer? How big? I have 4.125 that I want to redo this winter

I've got a 08 softail 96" twin cam.. I've already got my cams bought but am thinking about putting bigger jugs , having heads done etc. Is it better for me to buy new cylinders rather than having mine bored??

🤔Would you bore out a 114 cylinders if so, 🧐 how much bigger would you go..?

KEVIN, have to ask better to buy new cylinders ( S+S ,STD,etc) or bore originals.... My Evo 80 "is in need and I want to get more out of my TC 96 " always heard spigot dangers....

Dry boring? No oiler?

I surely hope that you have a few young apprentices

Can I ship my cylinders to you to get bored if so I need your address thank you Brian Lester from Johnstown pa.

I prefer my chips with dip. 🍟

Very skilled work but it would be easier using the metric system. Just saying...

Clearly you have read the manual on this machine

Torque plates are a waste. I've seen junk HD cylinders that were professionally bored and honed and STILL wore goofy. You can’t simulate the heat and expansion of the cylinders so why bother...

That is not cheap to have done.that equipment is expensive wow.!!!!.