drilling an oiling hole in a 400ci Chevy piston

During the assembly of a 400ci small block Chevy shortblock, I discovered one of the pistons did not get completely finished from the manufacturer. They missed drilling a wrist pin oiling hole in one of the pistons. Although there are many pistons that do not have these holes, this engine will benifit from having them as it will be a powerful street machine rippin up the streets with tire shredding action. So, this video is of me drillind said hole into the piston. Check everything during an assembly of an engine.

[@ballardperformancemachine]

The quality control from the manufacturers just aren't what they use to be. Good job on parts inspection. It is a must nowadays. Good machine setup.

[@whiplashmachine]

Thanks🍻. Definitaly gotta keep an eye out for things like this. Just measuring everything is not enough. At least it was just a single hole to do and not some extreme BS to make it work or have to wait for parts to arrive. Around here we have been having quite a bit of parts shortages on top of our typical lack of parts.

[@canadaroad1798]

I don't know a lot about machinery but this was very cool to watch Thanks for sharing 👍

[@whiplashmachine]

Thankyou Canada Road🍻🍻🇨🇦

[@canadaroad1798]

@@whiplashmachine 😍

[@Nine_Finger_Wrenching]

Sweet shop!! I ❤️ tools!! Good catch on the missing oil hole. I bet I would’ve found that the hard way.

[@mekanikhendri222]

very good video, it can add to my experience, thank you greetings from Tenggarong Kutai Kertanegara Kaltim Indonesia

[@bcbloc02]

If I am ever in the area I will have to look up the address and put some nice dually marks down for ya!

[@whiplashmachine]

Be a hell of drive for ya lol, but look forward to it🍻

[@richardsmith-qy6vl]

Looks like you know your business good job

[@bcbloc02]

I probably would have just used one side of a v block to set the angle but I don’t have a built in rotab on my mill. 😎

[@whiplashmachine]

That would work also. Love my rotating table.

[@johnkries8189]

Cool set-up

[@normhodgkinson6965]

since you are using cap screws on those 5.7 rods, did you have to do any additional clearance to the block ?

[@whiplashmachine]

No I did not, there was plenty of room. I did have to clearance the rods a bit to clear the roller camshaft though.

[@normhodgkinson6965]

@@whiplashmachine Thanks for the reply. i'm getting ready to assemble a 406 for my Vega. my last 406 with rod bolts i had to clearance a bit. this time i'm using Scat rods with cap screws. i like your work, its excellent and professional.

[@whiplashmachine]

@@normhodgkinson6965 the rods in this build are Scat rods also with 3/8" bolts. I just fitted a 383 with 5.7" rods using 7/16" bolts and had to make some room in the block on that one. Gonna mock up and check rod to cam clearances next and get them fitted up so I can balance rotating assembly. Should have that one wraped up soon also.

[@normhodgkinson6965]

@@whiplashmachine great, i'll be watching for the next video.

[@ballardperformancemachine]

Got a question about a g&l HBM I am looking at.

[@gentilejoshsaved1646]

Hello, you think the 400 is a good choice over 350? I ask because I have a 400 and 350 both good builders for my 82 high Sierra.

[@tomintoxicated]

When you checked the angle of the original hole, it was 44 degrees relative to the plane of the piston top. But when you set your table, you set it 44 degrees relative to the piston top at a right angle when it should have been 90 - 44 = 46. 2 degrees difference no big deal, just saying (unless I'm wrong then I'm sorry).

[@whiplashmachine]

Nope, you're correct. Looks like I got caught on that one lol. Thanks for paying attention to my video so closely, I really appreciate that.

[@richardsmith-qy6vl]

How far down is a 400 piston down in the hole from the factory does 0.650 sound crazy to you ?

[@whiplashmachine]

Yes, that is way too much. Are you sure the decimal is written in the correct place?

[@Neil-ru7kw]

Aiding and abbetting