hhughes1

Car and Driver May 2009 reports two new applications for our beloved 63 motor.

MB SLS AMG due next year as a half price replacement for the SLR McLaren will have the 6.2L motor and dual clutch 7 speed tranny. Factory specs are 563 HP and 479 TQ.

McLaren will use a MB 6.2L motor for its new P11 in a mid engine layout also with the dual clutch 7 speed. With McLaren modifications the motor is expected to exceed 600 HP. Can't wait to see how this car fares against some of the Italian hardware although Ferrari will have the F500 out to replace the F430 by then.

Anyway you look at it, it is great to see this type of investment being made into the 63 motor.

MB_hunter

Not sure about the P11. But, SLS will use all new M159 motor. Not M156.

DaGS1800

Sounds amazing, I can’t wait to see results... This will create spin off products for our engines as well

CynCarvin32

same basic bottom end but revised head design with a 1k or so higher redline. Also will have new direct injection fuel system.

groupB

Not sure how "all-new" it is. The block seems pretty similar, visually?

hhughes1

The question is going to be how much of the parts bin is interchangable. Is the bore and stroke identical and will the crank, rods, pistons etc be stronger for the higher RPM application? Will they be cost prohibitive?

CynCarvin32

compression could be higher but the heads will bolt onto the M156 car. Cams will be different etc as well.

With the direct injection that should be on these motors compression can be higher without risking detonation. If that is the case the pistons likely will be different.

At the core this SLS motor is a lightly revised M156.