Hi all,
Why I want to swap the engines:
A few years ago I bought a c1500 from a family member and it wasn't in the best condition. That I know of the motor was replaced with another junkyard one and so were a few other components and it sat for a few years on and off. I used this truck as a daily driver for a year and a half and I fell in love with the truck as some people do. But now the truck sits in my driveway because of a few problems like Brakes, Transmission, Engine.
I have done some research and decided to swap the old 4.3 for ls style truck motor. and I would like some info on doing the swap
Specifically:
1. If I can or cannot use my existing transmission? and why?
2. The fuel system. any info would be helpful
What I have planned:
Engine:
Gen 3 5.3l LM7 or 6.0l Lq4 both DBC
Gen 4 5.3l LMG unknown on the what AFM it has
Gen 3 4.8l Cheapest choice
Transmission:
Existing 4l60e in my truck currently
4l80e
Performance:
Preferably everything stock (for now)
Rear end:
Gm 8.5in 3.73
Engine Control:
Stock Ecm/flashed
So any additional info from personal experiences, any tips that will help me down the road, Some references I should contact or read up on that'll help me, what to avoid, even what parts to buy.
Thanks greatly.
Why I want to swap the engines:
A few years ago I bought a c1500 from a family member and it wasn't in the best condition. That I know of the motor was replaced with another junkyard one and so were a few other components and it sat for a few years on and off. I used this truck as a daily driver for a year and a half and I fell in love with the truck as some people do. But now the truck sits in my driveway because of a few problems like Brakes, Transmission, Engine.
I have done some research and decided to swap the old 4.3 for ls style truck motor. and I would like some info on doing the swap
Specifically:
1. If I can or cannot use my existing transmission? and why?
2. The fuel system. any info would be helpful
What I have planned:
Engine:
Gen 3 5.3l LM7 or 6.0l Lq4 both DBC
Gen 4 5.3l LMG unknown on the what AFM it has
Gen 3 4.8l Cheapest choice
Transmission:
Existing 4l60e in my truck currently
4l80e
Performance:
Preferably everything stock (for now)
Rear end:
Gm 8.5in 3.73
Engine Control:
Stock Ecm/flashed
So any additional info from personal experiences, any tips that will help me down the road, Some references I should contact or read up on that'll help me, what to avoid, even what parts to buy.
Thanks greatly.
