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3.7 V6 ending this summer

by David Zatz on

In August, the last 3.7 liter V6 engine will be made, the last Chrysler V6 not using the new Pentastar / Phoenix design, according to sources within Chrysler. While some expected that production would end earlier, it appears that the run will continue, possibly to provide service parts and replacement engines.  The 4.7 liter V8 is also expected to keep hanging on, remaining in production through summer 2013.

Word from within is that Grand Cherokee and Durango sales continue to be strong, and with high profitability, they are attracting Hemi engines that would normally be put into Rams. This may be one reason for the continued production of the 4.7, which does not have the power or cylinder shut-off feature of the 5.7 Hemi. The Hemi’s MDS allows it to provide gas mileage similar to or better than the 4.7 despite its greater size and performance.

The “Next Generation” 3.7 liter V6 engine was a replacement for the old 3.9 liter truck engines; the latter was based on the 360 V8. The 3.7 was based on the 4.7 liter V8, and was created specifically for truck and Jeep use, never appearing in a car. It was a 90-degree design with a cast iron block and aluminum heads. Unlike its V8 sibling, it was never given redesigned heads and the power boost that accompanied them.

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