Bore and deck 250 Chevy block in CNC

Using a Milltronics VM4222IL to machine this block today. This is a production machine with special jigs and our programs. Block is bored .035 over and zero decked to match our pistons.
12Bolt sells machined blocks.
All blocks are:
Baked to degrease/ remove paint
Blasted to clean
Magged for cracks
Pressure checked for cracks/leaks
All bolt holes checked/ chased/ repaired if needed
Zero decked for 12Bolt pistons
Allign honed mains
Precision honed cylinders for 12Bolt rings
Deburred internally
If you enjoy my videos. My son could use your help. He is suffering from Muscular Dystrophy. gofund.me/7115...

[@BTFSawmill]

Great video Tom. Always look forward to your content.

[@telowe2000]

Thanks AL!

[@edsmachine93]

Very nice work. Thanks for sharing. I just subscribed. Take care, Ed.

[@trisnomechanic6985]

Nice video 👍👍👍☕👈🤝🏻🙏

[@RS-rn4ox]

Great video, thanks for putting it out. I have never seen an inline getting worked over so it was a treat. Please keep stuff like this coming on the channel. Hows the 65 wagon these days?

[@telowe2000]

This is a daily thing in our shop. The 65 Wagon is about to come out of hibernation.

[@RS-rn4ox]

@@telowe2000 That's great to hear, I drove mine a few times already this year. It's a little warmer down here in SC.

[@michaelwatson6028]

I wish I was able to send you my 250 inline 6. Get me ready for turbo

[@stevewesley8187]

Great idea , what type of coolant collection system do you have ?

[@telowe2000]

The coolant runs in a trough on the left and right sides toward the front. It then drops into a chip conveyer to catch chips. There is more seperation in the conveyor and then drops into another tank. This system hold about 140 gallons.

[@deonsarjoo8812]

Hi there. How do you move the cutter away from the bore when it is on its way up?

[@telowe2000]

It is a boring routine. The tool does a side step before retracting. You can see it, watch close.

[@161Sheriff]

How do you level the block? I didn’t see what surface you used. I enjoyed the video.

[@telowe2000]

Block is fixtured on the main bearing surfaces fron and rear. If you watched the video, you will see me put a precision level on the deck surface to correct the block away and toward me. There are 4 adjusting jacks to then hold the block. You can see me tickle these with my fingers when setting up the block at the beginning.

[@161Sheriff]

@@telowe2000 ok I never understood how the block could be leveled when the deck is out of square. Now I know thanks👍

[@cartailincautodetailing946]

I’m thinkn of building a 250 with a turbo for my caprice coupe yeah everyone is gonna say why just throw 350 sbc or LS in it but I like being different and I’ve seen what they can do to these engines down in Argentina and Brazil they can get 1000hp obviously it’s gonna take time n money I’d be satisfied for 400 to 500 hp

[@ballardperformancemachine]

What is the vmc that you are using?

[@telowe2000]

Milltronics VM4222IL