I am trying to locate some info on these parts without much success. I have a Weiand 2x2 intake no numbers or other markings. I have a Navarro 3x2 intake with 2091 stamped on the front with no provision for the generator bracket, no heat port for intake. Probably for race application. I also have a set of Navarro heads stamped with 8.75 on them. I am working on a Canadian 221 24 stud flathead standard bore 3.06. I am also trying to identify the cam, it is stamped 5-T 3370. Possibly a Clay Smith ? I would like to use all of the Navarro if possible using progressive linkage or two of the three carbs.Any and all info appreciated.
Powder coated, wanted something other than shiny. If it doesn't pan out I'll just have them dipped and cleaned again.
You're correct on the Navarro manifold setup - was a 'race manifold' . . . pretty typical back in the day. It is a good running manifold, but probably more than you'll need on the size engine you're building. I'd run a 2-pot manifold if it was me. If you're trying to run a generator, then the Edelbrock slingshot is one of the best 2-pots there is. The heads are marked 8.75 for compression ratio - though it all depends on if they've been milled, what size engine you're running, etc.. Post a picture of the chambers - will give us some idea as to whether they've been screwed with. On the cam, the 5-T is a regular Ford stamping . . . so the cam may just be a stocker. Most cam manufacturers stamped their name on their cams. Post a picture/closeup of the lobes - will pretty much tell us if it is stock or not.
… For reference my 3 deuce Navarro intake is stamped #1779 on the front and has an embossed ‘R’ for Racing between the Jugs. You could furnish more photos of just the Intake and I could tell you if Carb spacing and runners looked the same.
Thanks guys, I'll post some more pics when I get home tomorrow. Sure would be nice to use both Navarro units.
Besides his 2X2 racing specific manifold, I wasn't aware Navarro offered a 3X2 in regular v. racing configuration. Does yours have heat provisions? Edit: I can see now that it doesn't. Hhhmmm. I would really like to know if they were offered in racing v. regular. Maybe Mike H. will weigh in on this?
Bored&Stroked here's the pictures of the chambers and Ric Dean here is a bottom shot of the intake. The heads do not look like they have had anything done to them. Ric if you need a specific picture let me know.
In "A Sweet Sickness" I remember Mike showing a manifold hanging on the wall that was a full race intake Barney made that was pretty rare. He said the way you could tell it from a standard intake was the port runners. On the regular intake, there is a 1/2" or so of the flange beyond the runner (like mine above). On the race version the runner came all the way out to the edge. Seems like the 3x2 Race were few and far between. Posted using the Full Custom H.A.M.B. App!
All the pics on my phone have the dang plug wire looms in the way but if you zoom in you can see the flange. Posted using the Full Custom H.A.M.B. App!
I can tell from looking at the pictures that the heads have been milled at least once, probably twice. You'll need to check the valve clearances between full-lift and the head and also the piston to head clearances. Depending the cam and piston dome sizes, you may need to have the domes reworked and the valve pockets fly cut. Make sure you use a head gasket during checking. You'll want about .050 over the pistons (as the gasket will compress a bit) and .040 or greater over the valves. If you find that you're close, another option is to use Cometic head gaskets - they can be ordered in a variety of thicknesses - though they are pricey.
Thanks all for info. Never knew that. If it helps, I can snap a picture of my Navarro heads. I bought them direct from BarneBarney in the early '90's. They've never been mounted.
Thanks everyone for the info. Bored&Stroke the 221 is all stock I'll be sure to check all clearances before installing on either of the engines I am messing with. Katuna the flatty sure is purdy! Banjorear a picture would be great for reference.
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