Chrysler 300C SRT8 HEMI sedan 0-60 mph, quarter mile (1/4 mile), top speed, 0-100 kph and 43 other acceleration times
The 6.1 V8 HEMI is a naturally-aspirated, wet-sump, water-cooled gasoline engine debuted in the 2005 Chrysler 300C SRT-8 and is basically based on the framework of 5.7 HEMI engine. This engine took influences from racing technologies and integrated them to create the new SRT 6.1 HEMI that can produce 425 HP and 420 lb-ft of torque.

Second, the 6.1 intake manifold doesn' t flow (perform) as well as the stock 5.7 intake does on a 5.7, as indicated in the following dyno test of several different manifolds on a 5.7: The other significant difference is the location of PCV Valve. It's not a problem though and would just require a different hose than is on the 5.7's.

2010 Chrysler 300C SRT8 0-60 mph 4.6 Quarter mile 13.0 Compare. 2011 Chrysler 300C V6 Limited 0-60 mph 7.2 Quarter mile 15.4 Compare 2012 Chrysler 300C SRT8 0-60 mph
Kenne Bell 3.2L Liquid Cooled Complete Supercharger Kit for 09-10 Dodge Challenger, Charger & Chrysler 300C SRT 6.1L - TS7600-3.2LC MSRP: $8,199.00
The heads can be swapped out but you will need to lower compression. Throttle body is the same for both 6.1 and 5.7, the manifold is different though. This to can be swapped out but you need to change a few things. Do a search for 6.1L manifold swap, there are some writeups here. A guy on LXF did the same swap (but modified heads not stock lbRpmc.
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