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The 5 speed NAG1 transmissions are plentiful and inexpensive. The 8 speeds used currently are $$$, computer controlled and require major surgery on the trans tunnel and related area. Really getting a donor post 2015 Challenger would be the ideal candidate. It would have all the little parts that...

Depends on how much you want to spend. Putting a small block 727 behind it only requires a special flex plate.

If your looking at a more stock engine. There are a couple of new 5.7 Mopar 5.7 in the box for $3500.00 each. https://inlandempire.craigslist.org/pts/d/fontana-dodge-ram-truck-57-hemi-motor/7412323216.html

May have to use a 2 speed wiper motor just like the Shaker setups use.

Good air circulation never hurts electrical components.

The only people who really know are the ones who made them ...Just contact them. https://www.ttiexhaust.com/

My 2006 5.7 dropped the valve seats @80k . They give no warning. Has nothing to do with rpm, temperature/overheating . Happens on start-up after recent drive ( 15 + minutes ). That metal coffee can full of nuts and washers sound.... At least go with later 5.7 heads or aftermarket with valve...

The 5.7 upgrades consist of new dimension valve seats, oil pump, timing chain/gear set. At that mileage though you might just consider a new crate motor. Everything is new, warranted and upgraded.

The most well known defect on the 5.7 is the valve seats falling out of the heads. This happens at an avg. of 80k-100k . Always occurs when starting engine after driving for a short period of time. Never when driving or acceleration. It is unrelated to overheating. Ask me how I know. I have a...

Open up to 26" . Now is the best time. You will need to get your trans first and then modify the tunnel. Go Gen III . Great availability and low prices. The Magnum heads had a bad problem with cracking between the seats. Aftermarket heads are a must to even stay with a stock rebuild. Been out...

I believe the oil pump upgrade was made by Mellings. And as mentioned above, do you have the MDA system reinstalled ? Or did they just use an 06 block for the rebuild ? Did you supply the core or did they ? Rebuilt heads ? They reuse damaged combustion chamber heads if they don't leak.

Compression/leak down test.:praying:

Did the rebuilder do the updates to the valve seats, oil pump, timing chain/gear set ? Not necessarily related to your problem but are a possible future concern. I have experience the dropped valve seats myself. Total head destruction. Happened on start up.

It only has to happen once. Or you can wait for it to happen. Heads are much cheaper than an engine. Just saying.

The problem is definitely with the 5.7 Hemi. Nothing to do with overheating or anything else you can try to blame it on. Pure and simple, the valve seats don't have sufficient interference fit to hold them in tight. The seat problem always happens when just starting the car after being driven...