Does anyone know what the difference is between a 6.4 out of a 2014 2500 pickup vs a 6.4 out of a 2014 3500 cab and chassis? thanks, Jim

64 Dodge Coronet 440. In progress
1998. Dodge Avenger. 8.35@165. 4400 DA
250” Neil and Parks Slip Joint. 7.36@183.
4600 DA
242" Mullis Dragster. 6.90@ 200mph