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Old 10-05-2006, 08:46 PM   #1
sloans4x4
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Re: Big block into 71?

I did the 454 swap into my '72 3/4ton 4x4. I did a 3" body lift and had no clearance issues. Itwas a 4-speed and my only issue was the headers. I went through 3 sets all of which had problems with clutch pivot, Finally bought a set of Hookers-problem solved, they fit great.


Shane
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Old 10-06-2006, 11:39 AM   #2
ugly
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Re: Big block into 71?

I bought headman elite, but they are not on the truck now. Still waiting for the 454, .20 over 450 HP, 550 torque

Sould be soon.

The motor mounts needed to be changed when I bought it, and the cross member is custom.

Alot of good stuff was done to the truck before I bought it, but the #1 upgrade I did was the rear disc brakes. Now it stops on a dime, with no skidding.
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Old 10-06-2006, 07:41 PM   #3
MNorby
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Re: Big block into 71?

rear disks rock. The 14FF i am putting in rear has disks, 4.56 gears, detroit locker, and a diff cover I built out of 3/8" plate, and tringulated shocks.
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Old 10-08-2006, 09:41 PM   #4
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Re: Big block into 71?

well got then 350/465/205 out this weekend and got my 454/th400 out of the other rig and ready to strat the swap. I want to move the engine forward an inch or so forward for firewall clearance and driveline lengths. Here are the 80s style engine mount towers bolted in the frame with the center of mounts roughly 1 inch forward. I messed around with the 80s style crossmember but it looks like a hack job to use it so gonna build something like this out of 1.5x3/16" sq tube. Opinions?

I already have the scale blueprints drawn out. Should have 1" clearance from oil pan. This drawing was just for visiual aid.
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Last edited by MNorby; 10-08-2006 at 09:42 PM.
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Old 10-09-2006, 07:44 PM   #5
MNorby
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Re: Big block into 71?

went ahead and built a crossmember out of1.5" 3/16 sq tube. Just need to make mounting holes and tabs.
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Old 10-12-2006, 10:32 PM   #6
MNorby
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Re: Big block into 71?

get the big block in tonight. More better pics on my digital camera i left at work. Had to do some creative beating on the firewall to clear valve covers and i pulled the master cylinder to drop it in. Tranny isn't in yet so it is laying back right now.
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