Is there any idea yet if these motors would be able to fit into the current or earlier silverado 1500s, make so mods but keep the same truck?

Their goal is to make it fit wherever SBCs are used, so anything from trucks to little old Datsuns should work.

so theoretically with a some obvious modifications it could fit in a 2004 1500? hmm that may be a very nice engine swap

i was thinkin the same thing. but then agen a 6.6 with twins in a 1500 reg cab short box sounds better!!!

i agree

I want to swap one into my Rubicon. :D There are 350 kits so this should fit. Wheels are really turning now.