offenhauser or clifford intake manifold in 1966 van?

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econovan
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offenhauser or clifford intake manifold in 1966 van?

Post #1 by econovan » Wed Feb 11, 2009 9:33 pm

Hey vanners,
I was wondering what modifications have to be made to the doghouse to fit one of these and a 390 or 570 holley in there.

I'm running a carter yf and stock intake now to break in the engine.

Thanks :)

mutt
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Post #2 by mutt » Thu Feb 12, 2009 2:27 pm

if you rummage thru the archives (im not good at it) youll find how to upgrade the doghouse. It gets complicated because of the seat mounting.
I think binning the stock seat makes it easier, youll have to look.
Way back when I dropped a 270 GMC into a '67 GMC long van. One thing I did to make figuring out the mounts easier was to cut the doghouse off all together, where it turned up from the floor. Then I cut one out at the junkyard outside the flange/overlap on the floor, & held it in place with panhead sheetmetal screws. Worked pretty good.

Ronbo
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Post #3 by Ronbo » Sat Feb 14, 2009 7:45 am

Not to hijack but.....I have a set of Borla stainless steel headers that fit the 300. They were used on UPS trucks back in the day. Think they'll fit in a van? Trucks are a no-go, the collecters dump into the firewall. I'm thinking on a van the engine sits lower vs. the body correct? I don't know anyone with a van to check it out on.

Ron
2013 F-150 FX4 5.0
2011 F-150 Lariat ECO Boost
68 Mustang, power drums/steering, AC, single outlet coated header, Holley 350, DS II w/Accel super coil
80 Goldwing (half the Mustang :))

66 E100 Pickup
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Post #4 by 66 E100 Pickup » Sun Feb 22, 2009 1:28 am

econovan, send me a PM with your e-mail. I know a guy that has done it, and can get you photos. He used a 30 gallon drum, cut in half, welded to the DH. It's quite a lot of hacking to make it work.

I've got another idea I'm working on, I know I can fit a Holley 2300 2 barrel carb, if I do some mods to the Clifford intake. But that's a long term project.

John

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econovan
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Re: offenhauser or clifford intake manifold in 1966 van?

Post #5 by econovan » Sun Jul 12, 2009 10:31 pm

Update:

The Offenhauser dual port is in and hangs only 2inches over the doghouse wall.
I'll deal with that later.

I can't figure out how to make a throttle linkage to the Barry grant four barrel.
The carb can only mount sideways 'cause the primaries are towards the engine.
So the cable would have to come from the passenger side or from underneath the right side.

Any ideas?

E100
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Re: offenhauser or clifford intake manifold in 1966 van?

Post #6 by E100 » Wed Jul 22, 2009 8:33 am

Use an offy "c" intake and you can mount the carb normally.

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econovan
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Re: offenhauser or clifford intake manifold in 1966 van?

Post #7 by econovan » Mon Aug 03, 2009 10:50 pm

Ended up with a 84' long throttle cable and bracket from Lokar.
Picked it up at the Lokar shop and it fits nicely. Nice stuff. All stainless steel. Well worth the $$$
Cut the doghouse today around the carb, isn't sticking out that much, seats fit well.
Blows a lot of hot air through though that I might route to exit the left side of the van.

Jetted the BG from 58s to 70s, 9.5 power valve, vac is 17HG at idle, changed from yellow to purple spring for secondaries.
Pulls nicely even on the 2:47:1 gearing.

Problem now is that the pedal linkage doesn't pull to full throttle. I get maybe 80% with the pedal full down.

The pedal linkage is also hooked up to the kick down rod. There's not much I can change there for what I know.
Perhaps someone has an idea?

http://www.servimg.com/image_preview.php?i=68&u=13214694

http://www.servimg.com/image_preview.php?i=67&u=13214694

66 E100 Pickup
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Re: offenhauser or clifford intake manifold in 1966 van?

Post #8 by 66 E100 Pickup » Tue Aug 25, 2009 11:21 am

Can you add an extension to the connection at the throttle pivot linkage? Or drop the connection point down? The only other place that you can get more action is to increase the pedal movement. All things you've probably looked at already.

John/Fresno

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