Difference in the Lightning and Harley Engine?

[Brandon03Cobra]

I am looking at buying a supercharged harley truck to pull a boat with and I was wondering what is the difference in the motors of the two trucks? Is it just a pulley? What would be the max power you could get safely with the Harley? I am use to modding my 03 Cobra so the reliability never came into question but I know these trucks don't have the internals for 600 hp. Thanks,

Brandon

 

[hankstanton]

The Harley engine is rated at 340hp against the lightning's 380hp. The main difference is the top pulley diameter and subsequent tune. If your towing a boat I would imagine it's not just for you. The extra seats in the HD model IMO would be more beneficial than a single cab + the extra weight of the HD would make towing easier depending on the trailer and boat size. A pulley swap, CAI and re tune and you would be pushing 400hp easy.