eand28
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If it's a bone stock gm engine yes. I didn't see any gain in fuel mileage because of the cam, head work and other parts
Coolant in Oil - What Now?
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If it's a bone stock gm engine yes. I didn't see any gain in fuel mileage because of the cam, head work and other parts
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Justinj360
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The engine is all stock except a K&N cold air intake.
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Justinj360
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What are the differences between the 862 and 706 heads? I haven't found a definite answer yet. The rebuilt engine I'm looking at says it comes with either 862 or 706 heads. What differences would I notice going from 862's to the 706's like the one they have pictured?
Also, they would definitely be aware of the cracking head issue and wouldn't use the old superseded heads right? Maybe that's a dumb question but I just want to make sure.
Also, they would definitely be aware of the cracking head issue and wouldn't use the old superseded heads right? Maybe that's a dumb question but I just want to make sure.
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Justinj360
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206k. I assume you're talking to me.
Scottydoggs
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http://www.grandprixforums.com/members-rides/99125-my-1984-k10-lm7-swap-7.html#post1492551
check this thread out, guys doing a 5.3 swap in a 84 pick up. he scored a used tahoe, took its engine and tranny, parted out the rest and he'll have a free engine pretty much. just like his s-10 6.0 swap he did same deal but a pick up, part out paid for the engine and tranny.
hes caming this one and started to measure the push rods. this is a high mile engine, 200 plus, none are the same length any more, and the tips are egged.
this guy also builds a mean tranny. the one in my regal i bought from him. shipped all the way cross country. az to NJ. hes done the 80 in the s-10 and pretty sure hes in the middle of the 60 from the hoe right now.
s-10 thread, burn out vid in first post lol http://www.grandprixforums.com/othe...4-v8-s10-project-vehicles-are-never-done.html
s-10 is now his daily driver. got to love that.
check this thread out, guys doing a 5.3 swap in a 84 pick up. he scored a used tahoe, took its engine and tranny, parted out the rest and he'll have a free engine pretty much. just like his s-10 6.0 swap he did same deal but a pick up, part out paid for the engine and tranny.
hes caming this one and started to measure the push rods. this is a high mile engine, 200 plus, none are the same length any more, and the tips are egged.
this guy also builds a mean tranny. the one in my regal i bought from him. shipped all the way cross country. az to NJ. hes done the 80 in the s-10 and pretty sure hes in the middle of the 60 from the hoe right now.
s-10 thread, burn out vid in first post lol http://www.grandprixforums.com/othe...4-v8-s10-project-vehicles-are-never-done.html
s-10 is now his daily driver. got to love that.
Scottydoggs
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even got reviewed by this chick with large boobs.
SnowDrifter
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The risk here is that coolant + oil ruins the lubricity. It takes a strikingly small amount to cause a measurable uptick in wear. Drive around like that for a while and your engine will be shot in short time. Without doing some digging, it's really a shot in the dark of whether OP would be replacing heads on a worn out engine or not. From what it sounds like, he doesn't want to fuss with it and wants a clean slate with everything known to be in serviceable condition
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Justinj360
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I couldn’t have put it any better myself. I just don’t want to do the work and spend the money on this one then have something else go out down lower more than likely.
mattbta
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That used to be a dude...
HiHoeSilver
Away!
Makes sense. Just asking since the reman engine cost is probably pretty darn close to the value of a 14 year old +- Tahoe. If you plan to keep it forever, then that matters less.
SnowDrifter
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Ehh. There's a case to be made
I wouldn't do that work to sell it as you wouldn't see the return on investment. But by the same token, a new vehicle has its own costs associated with it - depreciation, particularly if new, cost of repairs if used (NO ONE gets rid of a perfectly good vehicle), insurance, gas, etc etc.
However, if you're planning on keeping it, particularly if everything else is in good condition, then the net equation here is cost per mile.
Bad news in a way, but for you it confirms the need for engine replacement, which you were planning.
Unfortunately, we've come along way from this. Sorry about the latest news.
Unfortunately, we've come along way from this. Sorry about the latest news.
That is some of the same results I had in the oil analysis. Have you changed the oil recently? If yes, what did you observe with oil pressure readings? With mine, I noticed a drastic improvement in oil pressure readings. A little over a week ago as a Hail Mary move, I went the "Bars Leaks" route as a temp fix until I can find a deal on a replacement or a set of heads. So far, I have seen my oil pressure return to the higher values, my water usage go to nil, and my lifter chatter completely go away 100%. There is linkage between water usage, fouled oil, and lifter chatter on my 04 Tahoe with 277k. Yours may vary.
There certainly is a case to be made for the new or replacement engine, but it all comes down to your long term plan for the vehicle. I am actively looking for a replacement low mileage Tahoe in the 03-06 range. Nothing has turned up yet that is worthy of buying. If the replacement engine, or a good set of heads pop up first, then I will properly fix my existing Tahoe and hope for another 270k out of her. I have been surprised how resilient the 5.3 engine is, even with the flogging mine has taken over the last couple months with water, crapped out oil, and limping by type repairs. So far, it's taking a lickin' and keeps on tickin'
There certainly is a case to be made for the new or replacement engine, but it all comes down to your long term plan for the vehicle. I am actively looking for a replacement low mileage Tahoe in the 03-06 range. Nothing has turned up yet that is worthy of buying. If the replacement engine, or a good set of heads pop up first, then I will properly fix my existing Tahoe and hope for another 270k out of her. I have been surprised how resilient the 5.3 engine is, even with the flogging mine has taken over the last couple months with water, crapped out oil, and limping by type repairs. So far, it's taking a lickin' and keeps on tickin'
SnowDrifter
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Oww. That's a pretty bad UOA
As far as a misreport - no problem there. It's just for tracking the vehicle for multiple tests. The analasys itself however doesn't change and the results will be the same
As far as a misreport - no problem there. It's just for tracking the vehicle for multiple tests. The analasys itself however doesn't change and the results will be the same
SnowDrifter
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Check your PMs would you?
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Justinj360
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At least I'll be able to sleep knowing I'm picking one of the correct choices. This engine is hereby condemned and it's time for a heart transplant.
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Justinj360
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UPDATE: I had an engine swapped in and it's finally back up and running better than ever! I want to thank each and every one of you that helped guide me through this. I would've been completely lost without you guys.
The engine is a remanufactured 5.3L by ATK. I've driven it for about 300 miles so far and am pretty happy with the slight power increase over the old one that had 206k miles. Although, if I had to do it again I'd probably go with an L33 or a 6.0L. I couldn't find a remanufactured L33 and the 6.0L was a little out of my price range though. I also haven't noticed any better gas mileage so far. The new engine has 706 heads and the old one had 862's so I'm wondering what the difference is between those.
So, by now there shouldn't be any bad Castech heads getting remanufactured out there, right? That would suck for that to happen again.
The engine is a remanufactured 5.3L by ATK. I've driven it for about 300 miles so far and am pretty happy with the slight power increase over the old one that had 206k miles. Although, if I had to do it again I'd probably go with an L33 or a 6.0L. I couldn't find a remanufactured L33 and the 6.0L was a little out of my price range though. I also haven't noticed any better gas mileage so far. The new engine has 706 heads and the old one had 862's so I'm wondering what the difference is between those.
So, by now there shouldn't be any bad Castech heads getting remanufactured out there, right? That would suck for that to happen again.
