Difference between MP 7.4L and MP 454 XLI and 7.4 HO from 1999

[jon_allen]

Hi Guys

Does anyone know the major differences between all 3 of these 7.4s from 1999?

i actually just found out I have the standard MP 7.4L motors but am curious about the other 2 454s which were offered that year.


Thanks

Jon Allen

 

[makomark]

Internally, I don't believe there is anything significantly different....externally, carb or TBI....and the MSTS box vs the MEFI box.

If you really wanna find the differences, somebody would have to go thru the parts breakdowns.