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Those 2 exhaust valves in the middle, top of picture, are exaclty the condition I was thinking of when I mentioned pressurizing the cylinder and popping the valve stem with a deadblow hammer. Lots of crust would be coming out of those 2. What would remain of those seats would probably be enough...

Here's the loose shifter I have. The red arrow points to a cotter pin, logically there's a spring and ball inside that item. There's a switch, and right at the R location there's a bump in the arc-path that moves the switch button. I am now wondering what this shifter is for, as both the...

I will certainly admit that sometimes I am wrong, although this time I am confused. Here's the pic from that FBBO thread, at first glance, the one on the left seems to be the one to match yours (and John's) as it has the cable clevis on it. But the rooster comb in this pic appears narrower, and...

Agreed, the sludge is not bad at all. And those crossover passages can get fully plugged, these would still be capable of doing their job. I've had 2 318s and they both did it to me, fully plugged. One one of them, the 2nd time it plugged it was so far down near the end of the passage I...

@D Cluley This pic seems not correct for a 65 trans, it shows a rooster comb, which would be used in a 66-up unit. 1965 has the detents in the shifter mechanism. But thanks for the effort of finding and posting the pics, they are surely helpful to whomever reads this.

Using this pic from @D Cluley, I would recommend checking this first, as you need do all of this to change the VB anyway. Disconnect the shift cable (lime color) and rotate the lever arms out of the way. See if the shift valve moves freely, you should feel some spring pressure behind it, too...

Metals expand with heat. If it's 'one piece', it expands outward in all directions. But with a split in it, it still expands outward. So the material on both sides of the crack seemingly would be expanding toward each other, to try to close it. But the block is also expanding to become...

When you get it put back together, fill it with water and drive it around the neighborhood, get it warmed up, and see if that crack leaks, it might not leak all the time?

That's your only option (that I know of).

When the person on hte breaker bar is pushing clockwise - is that from their POV, or yours at the rear of the engine? Keep in mind an engine can also get stuck due to other rusted parts besides piston rings. If you are turning the engine the rotation of when it is when running, a stuck valve...

There are numerous products under the locktite brand, some are threadlockers, some are adhesives, some are sealants. Even amongst the threadlocking type, there are several - discussing the capability and after-effects is meaningless without knowing the formula #. I would not use any when...

I have seen diesel-engine torsionals break a transmission, but it always happened to a component that was loaded when torque converter lockup clutches were applied, and the damper springs on that clutch were not effective to dampen the torsionals. And when it happened it was always traced to an...

No, this was in pre-production durability testing, AFAIK no bad designs ever made production. What was durable for 1 MY of production might not be good enough for the next year. 2010 brought a ~50hp increase, and IIRC that's where the trouble started. We started cracking them, and they sent a...

No, we were breaking flexplates during transmission testing, and every MY the engine torque output was increasing, and we'd find last year's flexplate wouldn't survive. So they'd scramble to try different shapes - circle, ovals, kidney-bean shapes. The GM engineers were trying to make a durable...

FWIW, I would not use that new flexplate. Those half-moon cutouts look to have sharp corners, and sharp corners make stress concentrations, and that's where things break. Whoever did the CAD design for that needs a little what-for behind the woodshed. Along with every engineer afterward that...

Fair enough. But if you just bought the car, would you immediately tear down to the short block and send the heads off just to put hardened seats in? If you did, what else would you do simply because you were in the neighborhood? To the heads, or to the rest of the engine? It snowballs quickly.

That leaded-gas thing isn't a hard/fast rule. It depends on how the car is driven, and it doesn't happen immediately. High speed/rpm, towing, and racing cause more damage. I daily-drove a 68 318 for about 7 years, mostly highway use at 75mph (I read this qualifies as 'hard usage' regarding...

Gotta love a guy trying to help another guy, offering up a free engine, except the shipping is more than he wants to pay. :lol:

Sounds like you're on a budget, and it's real easy to cost-justify every next step on the stairway until you find yourself in the attic and out of money. Anybody up your way have a mid-70s Newport that can donate a 400? An engine you can hear run and do an oil pressure check on? Regasketing...

I guess I should've watched the video before responding. But nobody ever discusses the Alpine, so I assumed I was safe. :(