exh manifold
Elder User
Joined: Nov 1999
Posts: 780
Likes: 1
exh manifold
I read the same thing regarding the '96 exh. manifolds being better than the '87-'95. NOT! They're the same basic design with some different EGR and O2 ports, all nice-flowing dual "y" cast iron Shorties.
I was well into getting some Cliffy tube tri-Ys and didn't do it; I think some ported cast iron EFI stockers are the way to go, on the carburetor trucks as well.
Unless I build my own extractor headers, naturally.
Eddie
I was well into getting some Cliffy tube tri-Ys and didn't do it; I think some ported cast iron EFI stockers are the way to go, on the carburetor trucks as well.
Unless I build my own extractor headers, naturally.
Eddie
Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
exh manifold
Thanks Eddie. You know, those dual cast iron manifolds are pretty cool. They should last the life of the truck and should not have the cracking problem that some have experienced with the old single manifold. Pretty hot setup for a stock truck and probably the only straight six with stock duals. I guess there are only a few foreign companies still using straight sixes, and one of them I recently read has succumbed to the bent six trend. Oh man I hate bent sixes and rubber band powered camshafts. Give me the good old days, if fact, how about a flathead inline six?
Elder User
Joined: Nov 1999
Posts: 780
Likes: 1
exh manifold
Ah, yasss, flathead sixes.
A 20-year project of mine which is slowly beginning to struggle back together is a '65 Dodge WWII-military style Power Wagon, which was built essentially the same from 1946-1971; yes, you could still get a flathead six in 1971!
If you want to see what one looks like do a search for: Dodge Power Wagon Forum
The big change Dodge made in the PW: they went from the 230 CID smallblock six to the 251 CID big block six in '62.
This is where is gets interesting and has taken me all this time to collect parts: Chrysler built several displacements of big block, 237, 251, and 265, in Industrial, Truck, and Marine versions.
I have a complete, stock, dump truck dual 1-bbl. intake/dual exhaust manifold. Sez "Dodge" on it, kinda cool.
I finally found a full-flow oil-filter style rebuildable 251 Industrial (pipeline pump) engine. Normally, they all have by-pass style oil filtration but I want to run an oil radiator, i.e., the full-flow requirement.
Some years ago I came across a NOS Marine 265 crank and rods, virginal, untouched, no .010/.010 for this boy, woo hoo!
You wanna talk low-end torque? That 265 has a 4.75" stroke! (By comparison, that Cummins B5.9 diesel Dodge uses has a 5.0")
Eddie
A 20-year project of mine which is slowly beginning to struggle back together is a '65 Dodge WWII-military style Power Wagon, which was built essentially the same from 1946-1971; yes, you could still get a flathead six in 1971!
If you want to see what one looks like do a search for: Dodge Power Wagon Forum
The big change Dodge made in the PW: they went from the 230 CID smallblock six to the 251 CID big block six in '62.
This is where is gets interesting and has taken me all this time to collect parts: Chrysler built several displacements of big block, 237, 251, and 265, in Industrial, Truck, and Marine versions.
I have a complete, stock, dump truck dual 1-bbl. intake/dual exhaust manifold. Sez "Dodge" on it, kinda cool.
I finally found a full-flow oil-filter style rebuildable 251 Industrial (pipeline pump) engine. Normally, they all have by-pass style oil filtration but I want to run an oil radiator, i.e., the full-flow requirement.
Some years ago I came across a NOS Marine 265 crank and rods, virginal, untouched, no .010/.010 for this boy, woo hoo!
You wanna talk low-end torque? That 265 has a 4.75" stroke! (By comparison, that Cummins B5.9 diesel Dodge uses has a 5.0")
Eddie
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Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
exh manifold
Eddie: Sounds like a great project. A 1971 flathead sounds great. Probably over the GVW limit so that would require emissions compliance. I'll have to look up the power wagon site sometime. Hey, Ford had a 254 cid flathead six up until 1948. I was just thinking how sweet that would be in a '48 F1, but am not sure it was put in light trucks. That engine had a smaller brother too. The 254 had 104 hp at 3000 rpm and 212 ft lbs at 1200 rpm. I am trying to find out the bore and stroke. There is something about the simplicity of a flat head. I suspect that a fairly efficient flat head could be designed today, perhaps with a moderate supercharger to overcome inherent air flow problems and with fuel injection. Problem is the sway of the crowd is away from simplicity and inline sixes--probably wouldn't sell. Oh well, maybe when I retire I can find a restored flathead for sale. Keep us posted on your project truck.
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Brett Foote
Senior User
Joined: Jan 2000
Posts: 242
Likes: 0
From: St. Paul, MN
exh manifold
All this talk about split manifolds made me decide to take mine off and put them up on eBay tonight. I took a pic of them so y'all can see what they look like if you're looking for some at a yard.
http://users.superford.org/ylobronc/auction/300manifolds.jpg
http://users.superford.org/ylobronc/auction/300manifolds.jpg