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Offline 2drwagon

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V8 swap question
« on: July 03, 2015, 04:30:35 PM »
Hello, New member here. I think I was registered previously but can't find my own info anywhere.

Hope I'm in the correct section with this question.

I'm swapping into a 1974 wagon a 302 with Canfield heads, which have .400" raised exhaust ports.
Will be using M-II motor mounts.

I have the Hooker 1 5/8 swap headers (can't remember the p/n).

So: Who has used the Hookers on an iron-head swap ? I want to know how close a fit they are
to the floorboard area, so if I can use them on the raised port heads ?

Thanks much !

Offline 2drwagon

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Re: V8 swap question
« Reply #1 on: July 07, 2015, 06:52:23 PM »
OK, no one has done an iron-head 302 swap with Hooker swap headers ?

Offline HOSS429

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Re: V8 swap question
« Reply #2 on: July 07, 2015, 07:03:54 PM »
i kinda doubt anyone has done a swap with such heads .. i`ve done plenty with iron and aluminum heads with the stock port location .. i also doubt anyone makes headers specifically for the canfield heads .. but i would just bet they will work just fine as .400 is slightly less than a 1/2 inch and the headers should have more than that in accumulated clearances .. go for it and be the first ....   

Offline Reeves1

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Re: V8 swap question
« Reply #3 on: July 08, 2015, 07:39:50 AM »
Port angles the same as "normal" heads ?

Offline 2drwagon

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Re: V8 swap question
« Reply #4 on: July 08, 2015, 08:40:43 AM »
Reeves1,

Yes, port flange surface angle is the same on the Canfields as OE iron heads.
You can see that if the Hookers end up, for example, 1/8 inch from the floor
with iron heads, which happens with Hookers on other cars, then it would be
a problem raising them up half an inch. I had hoped that someone on here
had already crossed that bridge, OE heads with Hookers that is.
Thank you.

Offline Reeves1

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Re: V8 swap question
« Reply #5 on: July 09, 2015, 05:12:02 AM »
I see two problems.
One, the Mll mounts. Look & measure and you'll see they will off set your engine over an inch to the right.
Most Headers I've had to work with (swap ones) are made for a centered engine.

I have a couple sets of the Headman swap headers. Test fit them in my 72 & the engine HAS to be in perfect center for them to work.

1/2" may not sound like much, but depending on what motor mounts you use, they may lift too much on the left, and hit various areas. They [may] need to be extended to work.
Only way to know for sure is to test fit them.

There are motor mounts with a center pin. Forget the part number right now....will look for it.

Offline 2drwagon

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Re: V8 swap question
« Reply #6 on: July 09, 2015, 06:41:00 PM »
Now that you mention it, the M-II motor mount offset sounds familiar.
I'm not married to the mounts, I can eventually rig something up that will work.
I'd sure like to use the headers though, changing exhaust wouldn't be fun.
I'm not quite at the point where I can lower the new engine down for a trial fit,
just trying to get my ducks in a row first.

Offline t5gt40x

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Re: V8 swap question
« Reply #7 on: July 13, 2015, 06:43:55 AM »
from what I can see of my 74 with one half of one header in place, those headers sit right below the floorboard bracing, very close fit. My engine mounts are different, but it looks to me like the crossmember and oil pan call the tune, and everything fits like a jewel that has to be hammered into place.
I would not expect those headers to work with higher ports.
Or without quite a few mods, the ragjoint needs to go, I am going to try tubular upper arms to clear my passenger side. Im going to skip the drivers side of the set because I dont want to relocate the currently
working clutch linkage setup. Think I'll substitute a 351W manifold on that side if it will clear upside down.
I cant imagine getting away with the height difference when the collectors ride so close to the floor, as in my case anyway.

Offline Reeves1

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Re: V8 swap question
« Reply #8 on: July 13, 2015, 07:14:00 AM »
t5 - sounds like you may need another pan ?
How much is it clearing the rack ?
or
Maybe custom Headers ?

Oil pans I use. First is for 302w. Second one down for 351w : http://www.milodon.com/oil-pans/street-oil-pans-ford73.asp

Offline t5gt40x

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Re: V8 swap question
« Reply #9 on: July 13, 2015, 11:58:35 PM »
t5 - sounds like you may need another pan ?
How much is it clearing the rack ?
or
Maybe custom Headers ?

Oil pans I use. First is for 302w. Second one down for 351w : http://www.milodon.com/oil-pans/street-oil-pans-ford73.asp

it has a modified pan with about no clearance to the rack.. i suppose it could all sit lower somehow, but I dont think that would help the various issues Im facing. If it werent for the existing clutch linkage arrangement, I would fight the drivers side into place, but I dont want to redo that part of the car, I think it would limit my options with my 72 wagon. little raggedy 289 doesnt need fancy headers anyway.

Offline 2drwagon

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Re: V8 swap question
« Reply #10 on: July 15, 2015, 03:57:54 PM »
Starting to sound like a wrestling match between the headers and the oil pan.
Headers want to be lower but the pan won't be lowered.

Offline t5gt40x

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Re: V8 swap question
« Reply #11 on: October 13, 2015, 02:46:12 PM »
Starting to sound like a wrestling match between the headers and the oil pan.
Headers want to be lower but the pan won't be lowered.

no doubt, but your raised ports are the problem for those headers. they seem to demand fairly exact parameters.

Offline sursmiliepin

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Re: V8 swap question
« Reply #12 on: October 15, 2015, 08:46:33 AM »
I went with the through the hood headers.

Offline entropy

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Re: V8 swap question
« Reply #13 on: July 31, 2016, 05:15:18 AM »
I've got the Hookers. MII mounts, and iron heads.  I'm fairly certain that your .400 raised ports are going to be a problem.  The clearance issues aren't going to be the floorpan, they're going to be the crossmember and you're also going to be virtually in contact with the master cylinder.  Anything's doable...but this is going to be the opposite of fun to make work.
1972 "Hoonabout"
SBF swap
8" rear 4.11 posi
T-5 trans
10 point rollcage
Single stage NOS Cheater system

275 rwhp 350 lb/ft on motor.....some thing a bit more than that on the spray.