Talked to Austin. Going to punch the block .10 over. Everything looked good, it was a collapsed lifter. But if everything measures out fine, it should go back together fairly quickly. He assured me Greeny should be back and running by the end of the month. So GOOD news!!! Just got to spit out a TON OF 
. I knew this was coming… But within the FIRST year of ownership!!! Holy Cow!!!
This is what I’m dressing him out to look like!!!
Hey I got a shout out!!! This guy is from the Columbus area. Love his content.
Hey… Another shout out from @AutomotiveAdventuresWithAustin, @UncleBobMcVayMotorsports, and @SLABWRKS. Thanks soo much. Will share all the videos upcoming!!!
That’s great news, well except for the $$$$. Hopefully they are boring the cylinders .01 and not .10 over!
Yes… Miss wrote it.
Thanks Bob!!!
Well @DeadCougarGarage on YouTube has reached 700 subs. Greeny will be finished soon. So ALOT more Greeny content is coming. Der Dutchman Thursday. So please bring your Cougar!!!
Greeny update
Alrighty so here’s the story. And we need to probably get some of this on camera as far as going through the motor. Its been rebuilt a number of times on the bottom end but no one has touched the heads. So, the heads need done. New valves, new valve seats. A light cut to make sure they are flat and true. The block has already been punched .060 over which typically the maximum over bore is .030 so we’re in a bit of dangerous territory there. Cylinder walls they are trying to hone to get cleaned up unfortunately it’s already a bit loose with the pistons. At that much overbore we are also worried about a possible cracking in the cylinder wall from being too thin or too much heat transfer. They are going it now and going to sonic check the block afterwards to let us know hopefully this afternoon or tomorThe crank has already been machines at least once it’s 20/10 already but that’s not a big deal, can probably polish the crank up and it’ll be just fine. Wrist pins are way too tight on the pistons and have cut a groove, going to try to cut and polish those and refit them so we can reuse pistons and pins.Soooooo I kind of some tough decisions. IF it sonic checks ok, we can assemble it as is and see how it handles heat but you’re dancing on the ragged edge. Or, we punch it out further, sleeve all 8 cylinders which makes it even stronger and we can start over with a stock bore. Those both keep it the original block. Or, we try to source a 428 block that’s stock bore or slightly over unfortunately it’s no longer “original” to the car. If it needs sleeves, that’s $200 a hole so $1600 then we need new pistons to match the new smaller stock bore. If it passes the sonic test at 60 over like it is now, not a real big deal. Some basic light machining for the block and rods/pistons/crank reuse the pieces you already have. From Austin
I must’ve missed it… did they find VIN on block or head? Date code on block? If this isn’t the born with block I’d try to find a better one. If VIN on head I’d keep those and try to find a date matched block.
Yes. It’s the original block. Original heads, intake, carburetor, etc..
Agree with MrEos - assuming you found the correct VIN stamp on the block confirming original, I wouldn’t replace that block. Since you were already .060 over without an overheating problem, that’s not likely to become a problem now. Assuming sonic checks OK, just light machining and honing and reuse current pistons would be what I would do. Seems like a good shop you got there!
Sleeves definitely. It’s original so risking a catastrophic failure is not an option IMO.
Yeah, that’s a good point. But wouldn’t a sonic check determine if the block has enough cylinder wall left at .060 over?
Already been sonic checked. Going with it. Just let MCACN know the he ain’t gonna make it. Pics from Toledo Yatch Club. Beautiful 68
It’s all good, I was just going under the impression that thinner cylinder walls tend to make temperature higher. I’m not an engineer but it seems like that was the case back when I was turning wrenches forty years ago. Boy how time flies.
I think your concerns about wall thickness and overheating are still 100% valid. I was just assuming the sonic test, known temp history, and a good shop will keep Greeny out of trouble. Hope so anyway!
Yeah, we are becoming old school way too quickly.
