77' Highboy modification questions
Thread Starter
|
New User
Joined: Dec 2014
Posts: 2
Likes: 0
77' Highboy modification questions
I am planning on installing 4.9 injected exh manifolds with my offenhauser intake on my 77" I-6.Will this work. Also I would like to install a 94' 250 front end in my 77' . Will this fit my spring lay out ???
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
Measure. Cut. Fabricate. Weld. Install.
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,150
Likes: 5,785
From: S/W Missouri, Polk county
A copy and past of something I read awhile ago.
"But you will have a hard time finding a 60 with the 32.5" spring spacing, it'll have to be from a dentside. The '86+axles are spaced at 36", but are more common."
I do not think the 94 F250 axle will bolt tight up due to the distance of the spring pads on it? Versus the width of your 77. Tape measure time, for sure.
"But you will have a hard time finding a 60 with the 32.5" spring spacing, it'll have to be from a dentside. The '86+axles are spaced at 36", but are more common."
I do not think the 94 F250 axle will bolt tight up due to the distance of the spring pads on it? Versus the width of your 77. Tape measure time, for sure.
Senior User
Joined: Jul 2012
Posts: 129
Likes: 1
From: Denver, Co
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
And make sure the outlet of each manifold actually merges to form a Y...
There was someone in here running EFI manifolds whose down pipe merged like a T which probably negated any gains by the swap. Remember, air flows like water so the less turbulence the better... air and water don't respond very well by having to make a 90° turn.
There was someone in here running EFI manifolds whose down pipe merged like a T which probably negated any gains by the swap. Remember, air flows like water so the less turbulence the better... air and water don't respond very well by having to make a 90° turn.
Thread
Thread Starter
Forum
Replies
Last Post
philtug
1967 - 1972 F-100 & Larger F-Series Trucks
2
Dec 6, 2014 11:30 AM
jonathan.e.green
1973 - 1979 F-100 & Larger F-Series Trucks
2
Apr 23, 2013 10:16 PM
cowboy_up_07
1973 - 1979 F-100 & Larger F-Series Trucks
6
Apr 6, 2007 03:09 PM
