mopar intake

[midlifecuda]

can anyone tell me the difference between intake 4452891 and 4452893. in hp books "how to hotrod the small block mopar" they show the 4452891 in one of their recomendations and i see a 4452893 for sale somewhere, but that number is not listed in the book under mopar manifolds. im thinking the 93 is a replacement for the 91 and if so what if any differences are there.

 

[fishy68]

I can't really find a absolute answer even after a Google search but if memory serves me correct the original M! manifold didn't have holes for the heater hose and temp sender to screw into and later they added that. maybe you got a newer version with the extra holes?? Just a guess.

The only other thing I'd say if that isn't correct is look at the bolt holes where it bolts to the head. Are they angled like LA engines or straight up and down like Magnum engines? Maybe that's the difference? Just another guess.