Quote:
Originally Posted by HARDCORE A/O
Thanks for the offer Nova!
Donzi: My motor is a Dart Big M block 540 c.i.d. (not the 496 series). From what I'm seeing from photos of the Danas, the inlet is going to be at least very close to the manifold.
I'm thinking that I'm just gonna have to bite the bullet and buy the damn things. My Lightnings are too small on the primaries (1 7/8") for my Jim V ported heads is the problem. Anyone know the primary diameter of the Danas? I've asked this question on another thread and it seems from Dana's specs (cross-sectional area) that the primary diameter is larger but I'm not sure what the diameter is exactly. Thanks.
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Possibly this will help you..
1.78" headers = 2.759" of surface area @ the head for each ports. The Dana's have 3.062" od surface area @ the head for each of the ports.
That would put the Dana primaries = at approximatley 2 to 2.25" where the primaries bolt to the heads.
I believe that where the risers on a dana meet the manifold ports they have an opening surface of 11.14 combined for the 4 ports before entering the vortex/venturi collector. A header with 1.78" tubes would have a surface area of about 11.036" where it enters the collector
Also an FYI CMI E tops have 15.5" runners. The Dana has 27" runner equivalents.
If you need more info or would like to order a set please give me a call..

Jamie / Lakeside 570-639-2628
BTW: We have a set coming that is going to be installed on our own new Donzi..

Jamie
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