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5.7 Swap into D150 Completed


This is a discussion on 5.7 Swap into D150 Completed within the Engine & Performance forums, part of the 1st Gen : 1981 - 1993 category!
I haven't heard of any head cracking in the third gens, or fourth gens....


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Old 01-01-2017, 07:13 PM   #71 (permalink)
 
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I haven't heard of any head cracking in the third gens, or fourth gens.


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Old 01-03-2017, 10:32 AM   #72 (permalink)
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Confirmed: cracked cylinder head, passenger side. Unfortunately I do not have the money for a new one, or a different hemi.
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Old 01-03-2017, 02:17 PM   #73 (permalink)
 
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Ugh that sucks man... hopefully you get it fixed soon.


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Old 01-04-2017, 01:24 PM   #74 (permalink)
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Gonna look for a pair of refurbished heads and hope for the best. I am really hoping the bottom end of the engine isn't too soft from the overheating it experienced. If anyone finds a set of 2009+ heads for a good price, let me know! I live in Canada, by the way
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Old 01-04-2017, 03:26 PM   #75 (permalink)
 
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i don't know for sure but i think the bottom ends are usually not effected by overheating. if anything the heads are what are mainly effected. i also have not heard of those heads cracking but i have heard of people overheating the engines and having a valve seat drop and destroy a piston and head.


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Old 01-04-2017, 04:07 PM   #76 (permalink)
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I can get remanufactured heads from a 2011 for $375.00 a piece. Really really hoping this solves the problem and that more deeper damage was not done. I will also be investing in an engine temperature gauge...
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Old 01-04-2017, 04:26 PM   #77 (permalink)
 
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i don't know if the intake has a spot for another temp sensor. did you hook up the stock temp gauge when you installed the hemi? only reason i ask is the stock sending unit would likely work with most aftermarket gauges. i know i hooked a aftermarket temp gauge in my 93 and just took the wire from the stock gauge and hooked it to the aftermarket one and it has worked perfectly so far.

and since you got everything apart you may want to consider checking the heater core to see if it is clogged.


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Old 01-16-2017, 01:51 PM   #78 (permalink)
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Removed both cylinder heads and turns out that one was severely warped, and the other was slightly warped. No cracks. So I got them machined at an engine shop and they're being reinstalled now. Crisis averted!? Still somewhat expensive though.
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Old 02-20-2017, 10:35 AM   #79 (permalink)
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I took the truck on its first long drive over the weekend, it was 449km and I used 99 liters of fuel. That converts to 22L/100km or 11MPG. Not great compared to a modern truck, but that's because I only have 3 gears, so it's actually better than I was guessing, more like 7-8mpg. I averaged 120-130 kph so it was revving fairly high compared to if I had another gear or two. All in all was very satisfied with it!
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Old 02-20-2017, 11:18 AM   #80 (permalink)
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Awesome build! Considering you've only got three gears then your gas mileage is not bad at all.

My one suggestion is to avoid the 545 trans like the freaking plague, especially if durability and longevity are your goal. Definitely go with a 518/46RH if a trans swap is your future.
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