L18 8.1L swap resource thread

[sweetk30]

She is in her final resting place before major surgery of being a parts doner . Quick rinse under hood got 5lbs of dirt out and she is clean and all there .

last pic is the 3 here and running . i have 1 parts truck ready for scrap / 1 94 waiting for this ones 8.1/4L80-e and 1 running 02 8.1 / 4L80-e not sure yet maybe in to new plow truck build .

 

[sweetk30]

Another one on the hook today . This one is at my friends storage lot . Its got 211,xxx miles runs good body shot and frame shot . Another good parts doner tho . Already ownend it just had to pick it up today .

Up to 4 c3500hd/ 2005 2500hd / 02 motor with spun rod bearing but run good . I think i have an addiction problem .

I am even thinking swap my 2wd c10 from the 5.3 to one of these

 

[Wes Harden]

I am slowly getting that 8.1 out of the van. To much life getting in the way of shop time.

Few question, any one use the factory instrument tach, if so what did you use for the signal.
I have ordered a throttle cable throttle valve off ebay, GM17096144, and am looking at https://www.summitracing.com/part/trans-dapt-performance-products/2566/853047#instructions for the spacer, is this the correct spacer?

 

[skunked]

I am slowly getting that 8.1 out of the van. To much life getting in the way of shop time.

Few question, any one use the factory instrument tach, if so what did you use for the signal.
I have ordered a throttle cable throttle valve off ebay, GM17096144, and am looking at https://www.summitracing.com/part/trans-dapt-performance-products/2566/853047#instructions for the spacer, is this the correct spacer?

Spacer for the 7.4L throttle body? I used the one linked below however it’s showing as discontinued.

https://www.jegs.com/i/trans-dapt-969-2467-torque-curve-throttle-body-spacer-1996-2000-gm-7-4l?srsltid=AYCX9vI7PChSjTcVno4x7ox22PvTuBhy8ZryIT0I9wY4stcLXfCKFXN5

 

[BoondocK5]

I used the one for the 7.4Litre.
Your going to have to make sure your IAC port is exposed since you’re going this route.

 

[GWeakland620]

I am slowly getting that 8.1 out of the van. To much life getting in the way of shop time.

Few question, any one use the factory instrument tach, if so what did you use for the signal.
I have ordered a throttle cable throttle valve off ebay, GM17096144, and am looking at https://www.summitracing.com/part/trans-dapt-performance-products/2566/853047#instructions for the spacer, is this the correct spacer?

You’re talking the wiring for the squarebody gauge but tach signal from the 8.1?