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Some random thoughts came to mind.. So it was not mainly the heat that cracks the heads of the redblock but lack of material from the bigger...

Yukon6.2 NVM on the samples. I just found a crack free 1981 660 cast Redblock. For you Robyn, Anything ;-) The lab is going to charge me...

Once you get the test results....please post the data....This will be very interesting stuff.....

I contacted a lab… https://www.metengr.com 1. I need 1-5grams of 6.2 Redblock Drill Shavings. 2. Grind the block surface clean to bare block...

Chainsaws are hoarded as well As a crossover tie in, i have a diesel powered chainsaw... And a few other rarities in the chainsaw world. Like i...

Waaaaay upppp North :D I can think of a few things to go along with the 6.2 diesels in the hoard pile..

I hoard them... But then all of us way up here are all a little way out there...

At 40 years on...there is certainly not the supply of iron out there to choose from that was available back in the early to mid 90's. With Red...

They were unique to the 1982 model year. Of course, they were cast in 1981. I would expect, probably most of them were cast in 1981.

I have seen 1981 stamped on a few red blocks. https://www.dieselplace.com/threads/do-i-have-a-red-block.340496/ Still having a hard time trying...

Way to go Casey! Sounds like you did a great job! d

The 6.2 made its appearance in the C/K trucks in the 1982 model year. The red block was only 82. The 83 and later was black.... The 82/83 had the...

That Red plug should plug into the power steering pump on its rear face in the EVO solenoid.

If it was the original engine... Probably not. From what i have read they were a one year only engine,1981. There may have been a few that got...

Not to many things on the list anymore the orphaned red plug is just hanging around,but so far nobody misses it. Took some play out of the steering...

So let me ask a dumb question; if I have an engine from '83 with the large valves, is that a red block? This is the one in my '84 G30 RV.

Thanks for the correction and more info! Now all I need is some redblock samples!

All cool stuff.... "Splayed mains" are a good idea.....The bad part is the original outer bolt holes must be plugged and the plugs sealed in with...

Here’s my red block formula I would use if the nickel theory is true… tell me what you think… 1. Crack free rebuilt 6.2 redblock. 2. 18:1 coated...

The Truth about the early 6.2 engine These were built in a time when MPG was king The 1/2 ton rigs were capable of pulling down mid to high 20...

Glad to hear that the Burb is getting up to par. Did you find a home for the Loose Red electrical connector ???

Update... Vacuum pump was bad and the line from the solenoid to the turbo had leaks. The line actually had wear from the loom.A bunch of holes wore...

Ooo yes yes! Please tell me more! I just want to build one and do every mod possible to it. Fully modernized and push it to its limits! No...

Hi Casey It rolls as long as you have your foot in it to the floor,clearing up once you start to build speed.If accelerating with just a bit of...

The red blocks and coarse thread injectors were unique to the 1982 M/Y. Original heads had larger valves, as well. A crack-free red block and...

I had one apart back in the mid 80's that some clown had added a turbo to and melted a few pistons trying to make a bazilllllion HP Aside from the...