I agree with some of the things you say,, the 3.7 bolt in and the 5.5 is about the same amount of work,once the needed part replacement on the engine is done, which is done with the engine is on the stand one thing both engines has to be changed is the oil pan to clear the steering. oil pump to clear the hood the only and best part is the 3.7 is a cheap engine the best thing to do is but a srt6


The E32 is a 3.2 L (3199 cc) version. Bore remains at 89.9 mm but the engine is stroked to 84 mm. Output is 218 hp ECE (160 kW) to 224 hp ECE (165 kW) at 5700 rpm with 315 Nm (232 ft.lbf) of torque at 3000-4800 rpm. It has fracture-split forged steel connecting rods.

Applications:

2000–2004 C320
1998–2004 E320
1997-200? G320
1998–2005 S320
1998–2003 ML320
1998–2005 CLK320
2000–2003 SLK320
2004–2008 Chrysler Crossfire

The C32 AMG is a special version of the 3.2 L (3199 cc) C320, fitted with a helical twin-screw supercharger and water-to-air intercooler. The supercharger was developed in conjunction with IHI and features Teflon-coated rotors producing overall boost of 14.5 psi (1 bar). Output is 354 hp ECE (260 kW) at 6100 rpm with 332 ft.lbf (450 Nm) of torque at 3000-4600 rpm.

Applications:

2001–2003 C32 AMG
2001–2003 SLK32 AMG
2005–2006 Chrysler Crossfire SRT-6

The E37 is a 3.7 L (3724 cc) version. It retains the 84 mm stroke of the E320 but is bored to 97 mm. Output is 235 hp ECE (173 kW) to 245 ECE (180 kW) at 5750 rpm with 254 ft.lbf (344 Nm) of torque at 3000-4500 rpm.

Applications:

2003–2005 ML350
2003–2006 S350
2003-2006 SL350
2006.11-? V350