just curious... i've always thought that the D,B,H and F series motors have the same throttle body bolt pattern.. someone on another forum said the d16a6 has a different bolt pattern and that b-series TBs will only bolt up with 3 bolts... just trying to confirm this, because it doesnt make sense .. should be the same as the rest right?

 

Yep, the d16a6 tb will only work with it's manifold. IMO it works the best, just bypass its coolant lines if you want more horse power