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
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.
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?
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!
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?
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..
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 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????
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.
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…
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!
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.