If you have an old one still laying around, I have done this twice now. I cut mine apart once it died & added a Odyssey light weight racing battery inside. Not a race car, but it did go from like 54 lbs down to 18 lbs. It has more cranking amps & turns over much faster now than the re-pop Mopar red top batteries do.

Odyssey inside of stock battery.jpg

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.