toofart
Senior Member
It's all explained here:
6.4 liter Hemi truck engines for Ram pickups and chassis cabs
"On Ram chassis cabs with a gross vehicle weight rating over 10,000 pounds, the 6.4 was rated at 367 hp at 4,600 rpm at launch, a lower rating than the 5.7 in cars or light-duty trucks — the emphasis, again, is on durability and heavy-load driveability."
6.4 liter Hemi truck engines for Ram pickups and chassis cabs
"On Ram chassis cabs with a gross vehicle weight rating over 10,000 pounds, the 6.4 was rated at 367 hp at 4,600 rpm at launch, a lower rating than the 5.7 in cars or light-duty trucks — the emphasis, again, is on durability and heavy-load driveability."