Outer Limits 4x4 Board

whats the difference in engine block and head on the 1hz and 1hdt. Are the inlet and exhaust manifolds similar or are they both completely different motors. I know the 1hz only has mechanical injection.

Any links that provide history to both donks is much appreciated.

Nathan

they both share the same block.
heads are different
1hdt pump is bigger
manifolds are bolt on swaps

why do you want to know?