1999 Crew cab OBS 5.3 Swap

[keniff]

i cant answer this, but why not go 6.0? more hp for a big truck...just a thought.

i think you can use the spacer/flexplate from the 6.0 on the 5.3 to be able to use the 80e. i dont know for sure if they swapped converter bolt patterns but id check into it. or just have a custom stall made to the 5.3 flex plate and your 99 classic 80e.

so can we get some pics or what?
what happened to the 5.7?

[Rogerfe]

i cant answer this, but why not go 6.0? more hp for a big truck...just a thought.

i think you can use the spacer/flexplate from the 6.0 on the 5.3 to be able to use the 80e. i dont know for sure if they swapped converter bolt patterns but id check into it. or just have a custom stall made to the 5.3 flex plate and your 99 classic 80e.

so can we get some pics or what?
what happened to the 5.7?

I havent priced out the 6.0 yet, i unfortunately live in a smaller community so I was going by cost/availability, I will look into the 6.0 this week,

The truck has a solid front axle conversion, dana front and rear end, lifted.
The 5.7 is old and tired and i would like to go with a newer more fuel efficient engine.

Heres some pictures, its getting a repaint once its up and running again, canopy is gone.




Thanks for the help, i'll keep this updated once i figure more out