hello, im victor from the dominican republic, i have a 1979 fb with a 1991 13b as the power plant... i need a little help from any of u...

the issue is that i have a FD intake manifold (1994) and i wonder if it will fit my 1991 13b engine, and if it will make any improvement to it....

thanks for any help....

 

It will work fine. I retained the FC lower intake manifold. You will have to port match the runners. Buying both an FC and FD gasket to trace the runners on each manifold makes easy work of this. The bolt holes will need to opened up a little also. Overall I think it was very worth it. The FD has the secondary runners straightened and larger TB.

Justin

 

thks... i think im going for it.... ill try to post some pics of the mod if it works fine...

 

Pm ddub he did it also. I'm using a FD UIM/TB on my S5 TII LIM.. I had a adapter made. All this is going in my SA.. hoping for 400 RWHP at 12 Psi