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Thats buy tools just for rist pin

Always check conecton rod's wight also check piston Bob wight never take out box put motor same for crankshaft check balances of crankshaft I learn my mistakes take assembly out put motor together I build 496 without check assembly balances motor blow up my dum mistakes

Aidan, great 496 videos. I’m going to take my two marine 486s apart next week and this is a refresher course. We build alike …… cleanliness & organization are essential to a good outcome. I like the way you painted the block. My Mercury engines will be black. Yes, I had a Pontiac long ago with that color engine. My Olds had a gold engine. Your attention to detail is amazing ….. same here. The three coats of primer within an hour was good to know. Then the color. Thanks again for great videos. Hey stop saying: “This is just the way I do it”. LOL Those us who think like you already get it. My engines have some rust issues. Any tips on getting rid of the rust? Thanks

The large chamfer is to clear the fillet of the connecting rod journal of the crankshaft. A narrow bearing is required. 2 spiral locks are usually used per side....4 total for one piston.

The content is probably great, but I can’t listen to the echo chamber that you’re in. I suggest some DJI wireless Lavalier mics.

I have used those rods and have never had or seen a problem with them.

Im getting ready to build a 496 stoker with 781 heads so your stuff has been helpful

I watched all the videos. I did not hear you talk about the machining on the block. What do you recommend for a 800hp build. And my second question is do I need a crankshaft and rods to see if the rods will hit the block?. Because I heard it takes some machining for clearance.

I would have subbed but, it looks like you're stepping out of the video thing for a while.

Not sure why youtube recommended your F225 teardown video but man, glad they did. Amazing video, thank you. Maybe once life is stable, years down the line, consider doing more videos- you have a talent for it. Best of luck of luck to you.

Did you have to clearance the block with a die grinder to clear the new crank and rods?

Jefe los selenoides keyevan ariva de lacabezas del 250 ke funcion tienen acia motor

No se leer el ingles

Hola hoyga traigo un problema con un 250 yamaha meabienta aceite por la parte del respiradero de atras cuando lotrabajo amedia makina no abienta y lopaso de media makina y si abienta ke podra cer lorepare anillos nuevos ules de culatas nuevos blok rectificado

Hola hoyga tengo un 250 yamaha 4 tienpos con un problema tira aceite des pues de media makina por el respiradero de atras delatapa lemetimos anillos nuebos ules de culata nuevos y metira aceite kepodracer

Pure craftsmanship. One thing I do when I am not using a ring expander to install the rings is that I take the trailing end of the ring as I spiral it on the piston and I put my fingernail under the sharp edge and slide it down over the piston to the correct groove and then pull my nail out. This prevents the end of the ring from scratching AND helps the ring slide over the top ring groove if it isn't the top ring.

Good work!

You can tell by the squished wax, that your crank journal is flat, and ground perfect!

Great videos I’ve really enjoyed watching each one and am looking forward to the finished motor!

I would really have liked to know where the block failed on this motor. With some reading on the exhaust corrosion / mid section dry corrosion 2002 to 2008. models ,I wonder if this is a factor. Probably pressure testing the heads would be best so as to rule these out first?

What is the cost to rebuild that ready to go?

Great Video

Merci beaucoup ❤❤❤❤❤

Can we see more videos of the 496 build. I have a bone stock 454 out of a rv so far I purchased a tunnel ram dual carb and I would like to know what combo is great for running tunnel ram and cram carbs and types. Thanks

I can't sleep at night knowing a flat tappet cam is in my 496. I would love using one but unfortunately with the oil that's available today it's a roll of the dice if it'll last. And considering my rotating assembly alone cost 3k I'm not taking any chances.

Hi, since I'm not so familiar with chevy engines and haven't done the stroking yet, I have some questions and hope to get some tips from you, since I want to build my engine from scratch. First of all, congratulations on the great job and the cool videos To my question, is the 496 based on the 454 engine? I read somewhere that the 454 is available as a 4 bold main, does the 4bold automatically have a 2pice seal. Is the one piece seal worse or are there problems with the one piece ? Which camshaft would you choose if you have both a good idle and sufficient vacuum for the brake booster, the power from 650-700 RPM idle to the end of the revs really pushes the car forward, but also does not lose too much power in the upper revs ?

Una pregunta mimotor 225 yamaha lesale aseite por el multiple de admicon akecedeve

I love this guy.

Aidan, Do you happen to know how many iron heads and Aluminum heads are available for the 454 ? Thanks for this interesting build.

Aidan, when I am installing any piston, I first install the ARP Bolts on the bottom of each rod and a 2-foot section of Vacuum hose for each Bolt. It's just my way of no scratches on the crank.

I was quoted $ 2170.00 from Scat motors for a forged rotating assembly, was CNC Motorsports close to that price ? Thanks.

Love this video ! I also just subbed. Where did you buy your stroker kit from ? I was thinking of using Scat engines myself. Keep up the great work.

Loved it.

Are you ever going to come back to this build and finish it????

Did you use the Scat std weight 4340 crankshaft and Scat pro comp I-beam rods? How did it balance up?

Thanks for the thoughtful video. As a recipient of an F200 with the dreaded water entering the block from an undetectable location, it reassures me of my decision to scrap it and repower.

I used the duplicolor ceramic engine paint on my 408 LS a couple years ago. The thing still looks like the day it was painted! Good stuff

Women and engines just don't seem to mix. Balance of life is good for you. Keep moving forward. Life is good. Will be watching. Thanks for all the information.

Love you my brother, you are a true person, that’s why I follow you! You do you and that’s what sets you apart! Happy Holidays bro!

My machinist says big block Chevy valve guides are extremely difficult to get right and he quit doing them 20 years ago. I remember hearing the guides are cast into the head off center and some of them go through water jacket. Anyway with the cost and time of machining it makes heads like AFR enforcer assembled for $863 seem like a good deal to me.

Just reading through all the comments, I built a 496 with a 2 bolt block and used ARP stud kit. No issues, I bought my rotating assembly from Skipwhite performance. I’ve had great success with my combo I’m sure you will be happy with yours. 496 is a good foundation. 👍

Big block Chevy needs a bronze thrust washer or a Torrington bearing behind the cam sprocket with a retro fit roller cam or the back of your cam sprocket will get chewed up.

Looks awesome so far. Did you have to clearance/grind the block any for connecting rod clearance?

Use low tension rings and you can simply push the piston down into the cylinder.

A ring installation sleeve is worth the money.

The rings should be swimming in oil.

Nice big Slug of mallory metal and an additional smaller one to help balance the crank internally as 454s are externally balanced from the factory.

Always use 3/4 grooved main bearings on a non-crossdrilled crankshaft to ensure optimal rod bearing oiling. Obviously, crossdrilling ensures 360 degree rod bearing oiling.

Great video Aidan really enjoyable to watch. It's very apparent that you have found the right guy to learn from he comes across as a very smart and humble guy with a good sense of humor and that makes for a great workday. My son and I have two older bass boats with two strokes and are able to do about 95% of our own work and really enjoy working together on them. The only stuff that is a problem is anything that needs to plug into a DDT to diagnose. We have talked about getting our own after market stuff to do that . Keep up the great content and you would probably also find a large following with the larger HP two stroke crowd as well if you are doing any because there are so many out there and people want to keep them going. We are considering repowering the one boat with a new 250 sho and I would be interested to hear what you guys have seen problem wise with this series of motors.

Very nice