Installed my Offy, 4BBL & EFI manifolds!
#1
Join Date: Jul 2004
Location: Northern Virginia, USA
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Installed my Offy, 4BBL & EFI manifolds!
12 gruelling hours later, my 76 roared to life. It's not just any 4BBL; it's a 750CFM Quadrajet, and it drives great. See the thread I started in the Inline forum:
https://www.ford-trucks.com/forums/6...ml#post4761977
Alot of it is a total kludge right now, just to get me home. Two coathangers were sacrificed to help hold the exhaust up and keep the throttle bracket in place. Bolts were cross drilled for use with cotter pins. Aluminum tubing was cut into spacers. The 3/8" bolts I bought to put the Walker exhaust onto the EFI manifolds just stripped out of the cast iron, so I used the aluminum spacers with longer 5/16" bolts, nuts & lockwashers to attach the Walker pipe to the EFI manifolds. There are 5 connections in the exhaust system, and only one clamp, which was used mid-section to attach to a factory exhaust hanger.
The electric choke is wire-nutted into the Y-adapter I use to power my satellite radio from the cigarette lighter. I used cheap speaker wire that comes from under the hood, and in through the quarter window. It's totally hacked together, but it got me home. :-)
https://www.ford-trucks.com/forums/6...ml#post4761977
Alot of it is a total kludge right now, just to get me home. Two coathangers were sacrificed to help hold the exhaust up and keep the throttle bracket in place. Bolts were cross drilled for use with cotter pins. Aluminum tubing was cut into spacers. The 3/8" bolts I bought to put the Walker exhaust onto the EFI manifolds just stripped out of the cast iron, so I used the aluminum spacers with longer 5/16" bolts, nuts & lockwashers to attach the Walker pipe to the EFI manifolds. There are 5 connections in the exhaust system, and only one clamp, which was used mid-section to attach to a factory exhaust hanger.
The electric choke is wire-nutted into the Y-adapter I use to power my satellite radio from the cigarette lighter. I used cheap speaker wire that comes from under the hood, and in through the quarter window. It's totally hacked together, but it got me home. :-)
#2
Congrats on getting it running! I have a nice 750 Holley dual feed, vacuum secondary carb that would fit really nice on that Offy intake, or I could be convinced to let my Demon 725 go for the right price if ya want to try some other carb options.
Hacked up or not, at least she's running!! Let it ride........
for now.
Hacked up or not, at least she's running!! Let it ride........
for now.
#5
Word!
Hey, I dunno if you checked or not, but I see your using a Walker Down Pipe. . .did you check in the rear short tube that "T's" into the main tube? On mine, and a few others in the Inline6 forum have mentioned (at least when I hung out there) that the hole cut in the main tube is much smaller than the diameter of the rear tube. On mine I had to grind down about a 1/4" of excess sheet metal along about 1/3 of the radius of the tube to open it all the way up. Looked like it would have been a pretty major restriction.
If your install is still fresh, I dunno if you might want to pop it off and check. . .Justa FYI
BTW, my green truck had a Dynomax turned down under the bed. Irritating at 2500 RPM on the highway, but it idled and under load sounded almost like a diesel
Hey, I dunno if you checked or not, but I see your using a Walker Down Pipe. . .did you check in the rear short tube that "T's" into the main tube? On mine, and a few others in the Inline6 forum have mentioned (at least when I hung out there) that the hole cut in the main tube is much smaller than the diameter of the rear tube. On mine I had to grind down about a 1/4" of excess sheet metal along about 1/3 of the radius of the tube to open it all the way up. Looked like it would have been a pretty major restriction.
If your install is still fresh, I dunno if you might want to pop it off and check. . .Justa FYI
BTW, my green truck had a Dynomax turned down under the bed. Irritating at 2500 RPM on the highway, but it idled and under load sounded almost like a diesel
#7
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