manifold ID

[Twin_Turbo]

I collect all kinds of individual runner intakes and stack injectors (all individual runner stuff) and I recently bought this manifold. Does someone know exactly what it is? Ít looks like it's magnesium and has a GM part #: 37425807/00
It doesn't have a winters snow flake so that too signifies it's not aluminium, and it's really lightweight (much lighter than the alu crossrams I have)

I think it's a factory crossram set up for lucas timed injection.




Looks a lot like this, however the bosses for the injectors have additional holes on the sides and back.


Mine must be for push in style lucas injectors. I think it came off a F5000 car, like the one I posted above. Maybe someone out there knows what I have?

[shmoov69]

What did the Grand Sports have on them?

[Twin_Turbo]

Just realized I posted this in the wrong section...d'oh!! maybe someone can move it??

Anyway, here's a breakdown of some other manifolds (and what the GS ran)

This is what the GS were running. This is not the same, mine has alternating runners and the throttle bodies cast on as a single piece (making the total runner length shorter than the short manifold w/ carbs or tb's)

The throttle blades are right around 60mm on this one.

The grand sport manifolds however have paired runners, like this. The 2nd pic is a similar manifold without the adapters for the weber carbs. It has throttle bodies for mech. injection.


for carbs w adapters:


without the adapters, showing the bore & stud pattern, VERY siimilar



This one has the throttle bodies, check out the weird injectors. Looks like the same stuff on the 63 fuelies with the round fuel meteringhead visible on the right. it looks to be the same round piece as on the rochester units.

[shmoov69]

I dunno, but it is bitch1n!!