When you drill into the center ones does it leave a rough spot or burr you have to smooth up? Or does the hole come out smooth and clean? Awesome video

The real check is to put it on the shelf for a few weeks after it is straightened then check it again

Why couldn’t you just lock tight the OD of the bearing itself ????? I use to work at a head recondition shop but it was for diesel heads. They had me use lock tight on the injector seals. This is a honest question not trying to be a chuckle head.

Should you even try ? I’d be pissed if my engine builder didn’t replace a defective part with a new one.

How close is the cost of this repair to just buying a new head? Not to knock this guys skills, it's amazing. But the time, effort seems like it might not be worth it?

WOW you are AMAZING and VERY SMART so cool watching your vids

It looks like quite a bit of Mallory has been added to that crank over time. I always thought center counterweighted cranks generally required less heavy metal when balancing. Am I wrong or is it just because of this particular engines rods and pistons?

Whatever balance factor you use, it's only as good as the geometry of the bobweights and that's always wrong. The only way you're going to get it correct is to use bobweights that are concentric, compact and cover the whole width of the journal. Any other way you've got anything other than the % you think it is. So basically, it's all BS.

This is hands down the best cylinder head repair video I've ever seen hands down. I'm thinking about making a Cleveland head 300 straight 6 ford out of a set of aftermarket aluminon heads and if i do I'll be getting ahold of you to wield them tougher

You did a FANTASTIC job! I don't know why they didn't buy a new one, but truthfully if I didn't see you do it I would have to look closely to see it! I still don't know why they even have one for a POS GM! The only motors worth saving like that are well not GM, not FOMOCO(Built by DODGE! LOL) that leaves the best MOPAR!!!(the only way to go!!!!) The only Motor worth a D**M!

Wow I am so jealous of all that know how

👍🏻

I like the details its very important when building an engine.

Don't know how much you charge, but your worth every penny for fixing that!

Nice work,I know it's time consuming and thankful you go to great pains to get it right ✅️ for your customers!!

Love your content!! I'm a motor head working at a Great Automotive machine shop and you really take it to the next level, keep them coming 😊😊

Had a come back ate #1 exhaust push rod can't see anything wrong makes me wonder if cam bearing might have spun,Thinking I need to inspect future ,very helpful 🤔

How did the cost comparison turn out, hours vs. replacement? At the current cost of AFR heads, it seems quite likely a new head would be more than competitive, no?

How much does this repair cost I have a set of 227 AFR heads I need repaired look like this one except it ate a couple more holes

What reference plane do trust to use when setting up a V8 head on the mill for final facing?

This is part of blueprinting an engine, whatever the charges/cost to have this done is worth every penny….I doubt on the mass machining of these blocks back in the day they don’t all need some going over? Soooo well done Gerald..

if you have a chance on ur next video if u do another cam pin can u show us how you drilled the those for the middle 3 cam bearings

Gerald nice Memorial tribut for your family, having the car show and raffle for charity at your Church. So sorry for your losses and the hurt and pain. My Prayers are with you and your family. 🙏 Nice work on the piston flycutting.👍 Have a good weekend. Take care, Ed.

I had to look up the price for an AFR head. I never dealt with them and I was mystified at all the work.. ALMOST 4K for that head new.. I get it now

Very nice. 🫡👍🏻

I have 2 sets of 18° gm sm. Blk. heads. I guess thd old Nascar ones gm had. Building a dragrace motor. There are a couple cracks down in the cylinder walks where thd valves go. Local shops here say they are junk and not worth fixing but I've had engine builders say otherwise. I really want to use these heads on a new 377 combination. There were off a dirt car from what I was told and one of the problems I believe was the fact they have been ported to many times?? What do you think?? They came with a. set of t&d shaft rocker setup and alll the roller lifters and valves with one bent exhaust valve. The valves measured 2.20 which seems awful big but they are sll like brand new! Are they fixable????

I liked it all

Bad Ass!

GOOD LOOKING REPAIR JOB! WHAT KIND OF LIQUID ARE YOU PUTTING ON THE METAL BURR TO KEEP IT FROM CLOGGING? THANKS

Very nice

so satisfying to watch , plus this man knows what a finish is ;) unlike many uploads here on youtube

How do you get the chamber contours and displacement to match? Just by eye? Do you use a template of some type?

👍🏁

Since you milled down the top of the valve guides, I was expecting to see you take them out and press in new guides.

OMG 🙄. Buddy, you are full of shit !!! Stop pissing on people’s intelligence and tell them it’s raining out. You put 99 outta 100 blocks on a surfacer and it’ll show the EXACT SAME THING !!! Aged blocks move, and any half-assed machinist knows that. You provided no useful info and wasted our time with your BS 👎🏼👎🏼👎🏼

Nice video, good repair. Only thing, If this my cylinder head, I would start looking for a replacement. Did you mention the labor charge for this repair, a new or used head would have been cheaper.

You were on channel 6 new tonight

Love watching any videos that comes out on you tube by this man, he makes it look so sensible, measures everything he does what a professional….would love to work for this guy…

brilliant work jerald your an artist, jerald davinci

What's up with the square in the middle of your video?

I luv watching ya do your amazing job

OMG WOW!

Gerald I have a question, watching you cutting the seats I saw how smooth the head surface is based on the reflection. I was taught and have seen many heads on new engines during teardown the head and block surfaces always had some "tooth" or somewhat rough surface. I was taught this was to give the gaskets something to bite into. I understand there are different head gaskets that each probably require a particular finish but I've never seen a head that smooth. Perhaps you can explain this in some detail why this head has this finish. Thanks. You must've had a good breakfast that day to work so hard on those seals!

Is it acceptable to take 140 days to bore and deck a block?

I wish I could afford a spring compressor like that. I run that same head, with what looks like exactly the same (Manley) 1.640 spring package. It ain't no joke with a manual compressor.

I'm looking forward to part 2.

This man is a true artist

Thank Mr. Brand for showing us a " Smoking hot valve job " !. Always my pleasure to watch your work. 😄

Do you know who Eric weingardner is? If so what do you think about his port work?