Engine Swap 

To pull a internal combustion engine from its original vehicle and put another in its place.

Pulling a V6 from a sports car and putting a V8 in it instead, would be considered a engine swap

Engine Swap by 3.4Lto5.7LSwapCamaro December 10, 2012

Dundalk engine swap 

When someone stands in the frunk of their rear or mid engined car, freebases off of the frunk lid while having their asshole eaten.

I came out of left field pub and Geoff was getting a Dundalk engine swap from the Geresbecks's cashier, right off of the Porsche emblem and everything.

Dundalk engine swap by Captdownshift May 15, 2021