Are the heads on a 5.7 interchangeable with 4.7 dodge ram 1500?
No, the cylinder heads on a 5.7L Hemi and a 4.7L V8 Dodge Ram 1500 are not interchangeable. They are different engine architectures entirely. The 5.7L is a Hemi (with hemispherical combustion chambers), while the 4.7L is a conventional V8. Even the bolt patterns and valve configurations are different.