My El Camino is getting a 8.1/4l80 conversion

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8.1elco

Not-quite-so-new-guy
Jun 5, 2015
38
19
8
The 8.1/4l80e is finally complete. I had to spend a unexpected 5000 on a complete rebuild after the engine spun two rod bearings after the initial install. I'm extremely happy with the power and overdrive transmission combined with the 3.73s. I still need to get some bugs worked out light my headlights and blinkers not working. Also i need to figure out what springs use up front, the 8.1 is heavy and has my front really sagging.
 

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454GrandPrix

Master Mechanic
Jul 27, 2016
429
818
93
Lehi, Utah
I installed Moog 5610 springs in the front of my car, and it returned me to stock ride height.
 

8.1elco

Not-quite-so-new-guy
Jun 5, 2015
38
19
8
You used 5610 for a big block? Are the 5610 stiff?

And how is the 5662? I'm looking for a stiff ride as possible. I read the 5664 are a good choice for a firm ride, is that true?
 

fleming442

Captain Tenneal
Dec 26, 2013
13,046
24,216
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You used 5610 for a big block? Are the 5610 stiff?

And how is the 5662? I'm looking for a stiff ride as possible. I read the 5664 are a good choice for a firm ride, is that true?
5662s are 749lbs/in. You may want to max out with a big block.
 

Clutch

Geezer
Apr 7, 2017
5,189
10,913
113
Brick NJ
Really cool conversion my old truck had an 8.1 and it was awesome. I always thought it would be great in a car
 
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