[moneylust]

so I have a 2018 sxt with an 8speed automatic tranny and was looking to engine swap to a 5.7 what all do i nee to replace i know i need the wiring harness cluster, brakes, and rear axle anything else i know there is just dont want to miss anything. this is also my daily driver but i want more POWWEEEERR

 

[NJMOPAR]

PCM, TCM, mounts, driveshaft, all harnesses, and LOTS of money.
Or get a Pedal Commander, put it on Sport+ on 4, and have fun with your car as is.

 

[Dungeonghost55]

Hell, get a Ripp supercharger (or promaster if they make a bracket), lot cheaper, and I've heard it Dino at 350-400whp. I say that's good gain compared to the 250whp that motor is making. Worth doing the research, and its cheaper than dropping a create motor in and doing all the extra work of making it work

 

[moneylust]

PCM, TCM, mounts, driveshaft, all harnesses, and LOTS of money. Or get a Pedal Commander, put it on Sport+ on 4, and have fun with your car as is.

Thank you king

 

[moneylust]

Hell, get a Ripp supercharger (or promaster if they make a bracket), lot cheaper, and I've heard it Dino at 350-400whp. I say that's good gain compared to the 250whp that motor is making. Worth doing the research, and its cheaper than dropping a create motor in and doing all the extra work of making it work

I was looking at the ripp supercharger before I thought about the 5.7 but I seen they got 440rw hp with just the supercharger and axle exhaust and that did peak my interest

 

[Dungeonghost55]

I was looking at the ripp supercharger before I thought about the 5.7 but I seen they got 440rw hp with just the supercharger and axle exhaust and that did peak my interest

i would try to tune it back just a little bit. Those 5.7 are only putting 375 at the crank so after the transmission and diff, i think its like 345 at the wheel. so if you are laying down 400whp-425whp, you're already at the point of playing with 6.4

 

[HemiLonestar]

PCM, TCM, mounts, driveshaft, all harnesses, and LOTS of money.
Or get a Pedal Commander, put it on Sport+ on 4, and have fun with your car as is.

TCM is inside the trans in the ZF 8sp. Procuring a ZF TCM requires buying an extra valve body....

 

[JAMES FAIN]

Hate to throw this out there, but if you wanted more power you should have gotten a Hemi. It would have been cheaper. It may actually still be cheaper to trade up now rather than swap the engine.

 

[CE9311]

Pretty confiedent the Trans bellhousing is different between 3.6 and 5.7, so that would require change as well.

 

[moneylust]

so I have a 2018 sxt with an 8speed automatic tranny and was looking to engine swap to a 5.7 what all do i nee to replace i know i need the wiring harness cluster, brakes, and rear axle anything else i know there is just dont want to miss anything. this is also my daily driver but i want more POWWEEEERR

I want to build up my car so I’m not interested in just buying the rt so help me out lol

 

[JAMES FAIN]

I want to build up my car so I’m not interested in just buying the rt so help me out lol

Whether you swap in a 5.7L or add a procharger, the cost will likely be between $5000-10000 by the time you get an unlocked PCM, etc, etc. And then you spend a few years fixing issues that you didn't expect. I'm not trying to rain on your parade, just being real!

 

[tacamo01]

The rear wheel sxt uses a TorqueFlite 8HP50 8-speed. The AWD uses a 850RE, the same as the 8HP50 but built by FCA/Stillantis. So like said, the bellhousing would have to be changed. The 5.7L swap would be extremely expensive and give you more problems than it is worth.
Your transmission is rated for 370 Ft-Lbs of torque. Get the RIPP and call it quits. Cheapest and hassel free way to increase the power.

 

[MikesDodge]

The cheapest way to do this swap is buy a wrecked hemi car the same year range and switch everything over.

 

[JAMES FAIN]

The cheapest way to do this swap is buy a wrecked hemi car the same year range and switch everything over.

The cheapest way is to trade up.

 

[MikesDodge]

The cheapest way is to trade up.

It is but he's got his mind set on doing the engine swap.