1997 2-door Tahoe 4x4 LT1 swap

[revmatcher]

A few points on my truck:

• The headers I actually bought are sold out on ebay. The link I had up on GMT400.com died, so I found the closest thing I could. Basically they look exactly the same. The primary tubes on these trucks need to sweep back up high, then come down in a group like a single pipe. The starter, tight frame rails, and steering shaft all take up space.
• I was MOSTLY worried about the geometry of the headers – can they be bolted in without interference? I did have to dent in the vertical portion of the passenger side heat shield. Just one hit with a soft hammer.
• I was NOT worried about any ports on the headers– those can be plugged or added pretty easily. My LT1 motor has NO EGR, and only one O2 sensor. It’s a FAST XFI computer.
• Because my LT1 has D-Port heads, I had to have my eBay headers modified with the proper flanges. I bought the flanges from StainlessHeaders.com. They cost over $300, which is more than the headers. I forgot to add them on my little cost table. This also meant I had to buy 1” header bolts because of the thickness of these flanges.
• The welding time cost more than anything.
• The drivers side header is farther inboard because the motor is shifted towards the passenger side in the frame on these trucks.
• For whatever reason, the driver side header collector came out lower (closer to the floor) than the passenger side. Because of this, I made an offset in the pipe between the cat converter and the crossover (h-pipe). This offset is rolled to push the muffler closer to the driver side frame rail, and up over the cross-members.
• A 3” pipe would have zero clearance above the crossmembers.

 

[revmatcher]

COMPUTERS.

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[revmatcher]

Custom fuel setup to adapt Tahoe lines coming up to the rear of the motor to the LT1 fuel rails. This was a PITA. I should have just used the stock hard lines on the LT1 which had AN6 adapters on them already. Waaay too much fooling around here.

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[revmatcher]

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[tpass]

man that sounds good

 

[revmatcher]

man that sounds good

Yeah that's a lot of money right there. Totally worth it for that sound.

 

[Supercharged111]

So. . . how did a bum like you end up with this engine?

 

[revmatcher]

I bought it damaged from a seller on RACINGJUNK.COM.... I take no responsibility for the financial loss if you go to this website!!!

 

[revmatcher]

Finally got everything mounted and PASSED inspection!! Driving legally now.

Custom welded stainless computer bracket---

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[phantom 309]

The a/c compressor fits without notching? i have a couple of good running low mile lt1's and 1 brand new oem crate engine, just iron head motors,. I have a 95 truck,. i would like to put a gen 2 in the truck, they are really torquey even at 350cid.