V8 Swap

Although there is plenty of space in the motor compartiment of the Chrysler Crossfire, Chrysler never released a Crossfire with a V8. The tuning company Startech did, however, make a V8, called the STARTECH Crossfire 6.1S. This Crossfire is equipped with a M113 engine, with a displacement of 6 liters, and only 1 was made supposedly.

If you want to swap your engine from the stock 3.2L M112 V6 (or the supercharged version of the SRT6) to a M113 V8, you need to make sure of a couple things. Big thanks to The Mercedes Swap Shop for providing information.

Component	Recommended P/N	Note
wire harness	A113 010 25 00	The wire harness should fit the ME2.8. There should be only black ECU connectors, 3 of which latch, and 1 6-pin wide plug.
alternator	-	More power requires more power, get any M113 alternator
exhaust headers	-	You need to combine the Crossfire exhaust with a M113 exhaust manifold. Just weld the "front" two to the crossfire back two.
transmission	A113 030 00 12 / A628 030 00 12 (even spaced) A112 030 06 12 / A112 030 08 12 (uneven spaced)	The bolt pattern of the transmission was changed around 2004, so "new" crossfires need a different ring plate. The bolt pattern is for the OLD one evenly spaced, whereas the NEW pattern has an offset between the two sides (and a side is where the extra hole is in).
stock ecu	-	You should modify your ME2.8.1 ECU from the Crossfire, by soldering on the missing drivers and running it with the right firmware. This is the hardest part, and expect at least 8 hours of labour to do it right (keeping alarm etc working). Contact The Mercedes Swap Shop for more information about this.
radiator hose		Take one from the W202 C43
radiator fan assy	A202 505 42 55 (shroud) A113 200 01 23 (mechanical fan) A113 200 01 22 (mechanical fan clutch)	The stock radiator fan and plastic shroud is too deep. A full assembly with mechanical fan from a C43 (W202) should fit.
ac bracket	-	The AC needs a bracket, which is part of the driver side engine mount. Make sure you take this from a M113.