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Old 08-15-2012, 08:39 PM   #11
tallic68
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Join Date: Jan 2011
Location: Buckeye A.Z.
Posts: 116
Re: 68 longbed 5.3/4l60e

So let me know if I'm wrong.

This is a return less system, so I'll need a corvette filter/regulator.

The truck exhaust manifolds won't work. I'll need to find some trailblazer or corvette to fit with the least amount of modification. Or swap headers from thorley ect.

I can use the adapter from my old ps pump to adapt the ps lines.

The 5.3 came with hoses for cross flow radiator so I'll most likely be able to use my stock radiator.

Th400 yoke won't fit the 4l60e. So I'll need to find a yoke.

The 4l60e is longer so I will need to have my drive shaft shortened.

I can use the stock trans crossmember, just move back and maybe drill a couple new mounting holes.

For general operation of trans and ECM I'll need a 4 connection break light switch(I don't have LED tail lights )


Is the connection for computer tuneing or scan modules (OBDII port?) in the engine harness? Or is that something extra I need to add?

With the 5.3's upgraded amps should I worrie about the stock wiring harness? Or should it be ok?



Am I missing anything?

Thanks for any suggestions or info.
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