4.7L Questions (This engine needs love, too)

[mwclarksr]

A lot of people can't afford the time or money to swap in a Hemi (like me) and I have no problem keeping my 4.7. But now it's rebuild time with over 250k+ miles on him, he's wearing down. I just picked up a 4.7 for $250 just to rebuild so, I have some questions for it.

1. Nowhere have I found a new Intake, all searches result in a used one or the show a 5.7 Intake. Does anyone have any leads on getting a brand new/un-used Intake for a 2002-2004 Intake?
2. Are there any upgrades I can do while the engine is torn down to the block that will not require me trying to find someone to reprogram the PCU/ECU, unless someone knows a person that will do reprogramming?
3. What do I need to lookout for that could be a problem later or that can mistakenly be missed while putting it back together?

I know that I will have questions during this build & I won't be starting the teardown for at least another month, got my son's 4.6L Mustang engine to rebuild first. Thank you to anyone taking the time to read this.

 

[HemiLonestar]

1. Get a 2008 intake; yes you'll need a throttle body adapter (the 08+ was fly-by-wire) but it's a better intake, especially if you decide to upgrade cams.
2. 2008+ cams. There is a plethora of tuning options. Supercharged 2002 4.7's get custom tuned; I imagine your swill be a snap in comparison.

 

[mwclarksr]

Thanks for the reply, when doing a search for the adapter, what words should I use besides Throttle Body Adapter? 2002 Adapter? Intake is expensive, I wasn't expecting that high, wow!

Now to search for cams

 

[mwclarksr]

Camshafts are priced fairly cheap on Rockauto.

 

[mwclarksr]

Alright, silly question time, are the blocks the same, 02 & 08 4.7? Actually, are there any identifying numbers on the block so I can see what year block I just bought. All I was told when I got it that it was a 02 4.7 but I want to make sure.

 

[mwclarksr]

Alright, silly question time, are the blocks the same, 02 & 08 4.7? Actually, are there any identifying numbers on the block so I can see what year block I just bought. All I was told when I got it that it was a 02 4.7 but I want to make sure.

And I just saw that the camshafts listed on Rockauto were the same part numbers as the 2002, so they are not the ones that I need.

 

[HemiLonestar]

Thanks for the reply, when doing a search for the adapter, what words should I use besides Throttle Body Adapter? 2002 Adapter? Intake is expensive, I wasn't expecting that high, wow!

Now to search for cams

https://airram.com/ for 4.7 performance. Adapter: https://airram.com/product/4-7l-thr...l-conversion-to-08-up-intake-manifold-tba001/
1159 and 1160 are the 2002 p/n's, you want these (which Rockauto used to carry but are out of stock):

 

[mwclarksr]

https://airram.com/ for 4.7 performance. Adapter: https://airram.com/product/4-7l-thr...l-conversion-to-08-up-intake-manifold-tba001/
1159 and 1160 are the 2002 p/n's, you want these (which Rockauto used to carry but are out of stock):

View attachment 501290

After posting about looking for the adapter, I found it before going to work & hadn't been back on this site to update the discovery. I figured those cam shafts were the ones you were talking about when I saw that they are out of stock. Which is par for the course when I start looking for things to buy.

 

[mwclarksr]

So, I did a search for the original part numbers 53021983AA & 1984AA a Seller on Amazon has them listed for the 02-07, are they correct?



But some other sites list them for the 08 but for the Flex Engine. There is confusion starters when looking up these camshafts.

 

[mwclarksr]

Okay, so Mopar now lists them both replaced by 53021983AD & 53021984AD

 

[mwclarksr]

So now the question turns into Do I need to switch to the 08 Cylinder Heads for the intake to fit?

 

[HemiLonestar]

Sigh....no one reads anymore. Go back and look up the intake on the airram site.

 

[mwclarksr]

I had read it, I must have read somewhere that I needed to. I thought it was on that sight.

 

[mwclarksr]

They do offer a lot of items for the 4.7, which is nice. But looking on there I have to ask, with the 4.7 that I bought, is there a visual difference between the JTEC & NGC Engines on the outside that I can easily see?

 

[EdGs]

I'm not aware of external differences between the two blocks. The timing cover gasket is a nice, thick, one-piece type on the JTEC. The NGC was just a tube of silicone, I believe. Not sure why, except cost, maybe.

Since the timing sets are different, you might want to make sure that the cam/crank sensors are right for whichever engine you are going to use.