Gen4 engine swap into gen3

It's 1.6 quarts between the marks IIRC, that converts to about 1.1 quarts per 1000 miles, or a quart every 950~ miles.



Also consider sending the head to a machine shop, new gaskets and head bolts, and put in a new short block?

 

Don't forget that an engine with 170k miles - belongs in a car with 170k miles as well.

 

Error, error, Will Robinson:

I neglected to slash the 1.6 quarts in half, since you're seeing oil halfway down. Long story short, your consumption is:

0.8 quarts per 1500 miles
0.55 quarts per 1000 miles
a quart every 1900 miles

Any of the 3 above, they're all the same. That's not that bad, well half as bad. Still a lot.

 

do you say putting in a heavier oil caused more during smell or got rid of it ??

 

@Millie21
I put a GenIV into a GenIII late last winter due to a head gasket failure after the EGR clogged. If you have experience with engine swaps it can be done. I found a 2017 engine with 5100 miles and transplanted it into our chassis with about 250K. We now have over 285K and the performance has been pretty flawless. @Mendel Leisk did a very comprehensive video on youtube and I posted my swap. The damper plate, intake and exhaust have to be changed and one mounting nub have to be removed on the back of the head. The wiring will work with only a few minor mods, the biggest is an extension of the water temp sensor wire. It's not hard to do, but can get tedious at times requiring a little bit of a time out.

 

Are you maybe thinking @Ragingfit ?

 

Hybridpit in Buena Park CA is installing GEN 4 motors in GEN 3's. They are also the only ones that have figured out how to retain the GEN 4 EGR. That's a big plus!

 

Jury's out on that? It's heady stuff, but maybe it confuses the 3rd gen ECU. I'd be inclined to play it safe, till the brave pioneers test it out a bit more.

 

I didn't have the impression there's anybody yet who has retained the whole Gen 4 EGR system, which would include sourcing the EGR from below the catalytic converter.

Seems like the closest anybody has gotten is running uncatalyzed EGR through a cooler and valve designed for catalyzed EGR under the control of an ECM expecting uncatalyzed.

 

How does that go for legality?

 

Closest I've seen to a take on that is over here.

 

Yes, I thought so. It's something we could do 20 or 30 years ago with impunity - but today, we have to dot our "t"s and cross our "i"s - or however it goes.

Safest would be - get a Gen 4 car with a Gen 4 engine. Or put a (suitable) Gen 3 engine in your Gen 3.

 

Works perfect, no legality issues.