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[font size="1" color="#FF0000"]LAST EDITED ON 08-Aug-01 AT 10:11 AM (EST)[/font][p]So Bob, tell us how you REALLY feel about stock FE exhaust manifolds! ;-)
You don't like cramming every thing into one log and making sharp bends that don't flow?
By the way, when I read your post, I was thinking about the advantage of the Predator carb. It allows you to control the air flow as well as the fuel flow.
Almost anything is better than the factory FE log exhaust manifold. I don't think Linda Lovelace could suck anything through these!
I like the 427 factory manifolds but they don't fit anything I own right now. The 352-406 HP or PI shorty manifolds work fine but again they don't fit just every where. The 428 SCJ manfiolds that I managed to get into my Galaxie 7 Litre are the best Ford made in the late '60s.
There are some 390 GT Mustang manifolds that came on the drop port head (that's what I call the heads where the exhasut ports are about 5/16 closer to the bottom of the head). These are OK for the heads they fit. I usually open up the top of the exhaust ports and the manifold so they flow better. I believe these heads will fit into many trucks having the dropped port and if they fit would work fairly well.
There are some truck manifolds of the mid '70s or so that look a bit like the old Ch*%y 283 manifolds with a center exit for two cylinders and these are OK, not good, just OK.
I've got all of these and I guess I ought to take pictures and post them. My 35mm camera died a while back and I just haven't bothered doing anything about replacing it.
Kinda. I've ordered a camera and will try to post pictures next week. That looks to me like it should bolt up if you drilled a couple of extra holes in your heads. The design in the picture does not force all of the exhaust gases from the front cylinder to pass over the rear cylinder's port. Those actually would be OK, certainly an improvement over the log type. Do both sides dump straight down?
The problem is the starter on one side and steering box on the other. And leaky header gaskets often overheat the starter or steering box creating real problems.
The ones on my Dads '76 360 were D5TE-9431-BC (left) and D2TE-9430-AA (right). The left one has re-enforcing ribs and a center outlet and is fairly deep; the center outlet faces back at angle and not straight down like in your picture. The right one is very similar to the stock pasenger car log manifold and is almost worthless. I kept it as a bad example, ie, what not to use.
[font size="1" color="#FF0000"]LAST EDITED ON 10-Aug-01 AT 01:35 PM (EST)[/font][p]Oh, I know which ones you’re talking about now! It kinda looks like a ram horn with reinforcing ribs. StockMan posted a pic of one of these a long time ago, it’s a FE manifold and a beefy one.
On the FT manifold, yes, both sides dump straight down in the center, they are heavy mothers with 2 ½” outlets. The center bolt holes are for the exhaust crossover in the FT head, it comes out of the manifold and passes up through the middle of the head to the intake. The flange is different on the FE head, there’s nothing to bolt onto except thin air. Plus there would be a honkin exhaust leak out of the manifold!
While were talking about exhausts, how did you get the SCJ manifolds to fit your 7 Litre? Different heads?
Hope gtex doesn’t mind his thread going off-topic. He’s fixing his tranny right?
I'm going to have to haunt a few junk yards until I can find a set of those manifolds. I want to see the other side. FT parts I've ignored for years.
Junk yards here in NC don't usually have any truck parts and seldom let you wander around. Not at all like when I lived in Hemet, CA and could spend a day at Pick-A-Part.
The SCJ manifolds just bolted right up and cleared everthing. I was very surprised as I had tried every other factory manifold with no success and didn't want to use the Hooker Headers, saving those for use if I ever race a Galaxie seriously again. Besides it looks so stock with cast iron manifolds if you don't know what your looking for. After blowing off a rice burners with my "boat" they don't believe it's "stock." A couple to times they spent an hour looking for the nitrous. Laughed my head off as I drove away.
I thought it was about distributors but I went back and checked something about an Edelbrock intake. I'll start a new tread with the pictures when I get my camera.
Don't mid a bit... Tranny is sucking up more cash , down at the tranny shop. Hopefully I'll have a quality build up/rebuild and I can reinstall on Sunday or Monday. I would have just bought a new tranny from Jeg's, but the local guy is offering me a year warranty. I like the idea of being able to drive it back and say this thing needs help. I might be rolling again in the next 2 days. Wooohooo!!! I'm eager to see if I'll notice any low end torque loss. I keep thinking that I'll be fine with those 4.10 gears. I'll probably run out of gear well before the 1/4 mile mark, no? The dream is to have a truck that is reasonably quick in the quarter mile, but can still be a truck if needed.
I am actually enjoying the carb and header/manifold discussion. My first encounter with headers has been somewhat dissapointing. they are difficult to install and make it difficult to get to anything like starters and transmissions.
Well it always cost more money than you planned. My wife loves to get my first estimate, then she adds 20% and then doubles that. Tells me I usually spend more than that anyway.
She does the something similar with my time estimates. She takes my first estimate say 8 hours, adds 25 % for a total of ten hours; but then she gets real nasty and converts to the next higher time measure so hours becomes days or days become weeks. Any way now she has has me up to ten days and darn it sometimes I still don't get done by her estimate of my estimate. Lots of laughs for her but at least she doesn't complain while she's teasing me.
Those wife money/time estimates sound familiar. It get's a little frustrating when every small project gets big. I don't know how many times I've wandered out to the shop expecting to accomplish some brief task and reentered the house completely covered in grease after many hours. The wife is usually amused. As my Aunt put it, "It's better than a red-headed mistress".
Heres some advice for you .If found a machinist here in hillsboro who use to race FE's and has alot of parts, even the SOHC motors he use to race. He told me the cam from comp cams was not enough duration that FE's like alot of duration so I figured since I only ran 14.5's in the quarter and another race in a week I would try the edelbrock cam to match my edelbrock heads and intake. On break in the cam when flat. We determined that the springs that edelbrock uses on the heads have over 300# lobe pressure at .572 lift is what caused the problem, since breaking in a cam with that much pressure usually destroys the cam and your engine.So if your are using that cam run lighter springs for break in.
Well if you find one, give a holler. I live near Portland, Or, and I'm gonna have my heads worked over soon. I don't need an FE expert per se for that but I'd rather send them the work.
If your knuckles ain't bleeding you did something wrong.
'72 F-250 "Hi-Boy" 4x4, Dana 60/HD44, FE428 @ 400+ ponies , 4-speed, custom suspension w lift, mud on black.