ECSB 4.3 to 5.3 Swap

[Wrkd_LSX]

This is my 4.3 to 5.3 swap/mild build

2003 ecsb silverado 4.3L 2wd 207,xxx miles $2200
1999 sclb silverado 5.3L 4wd totaled rust bucket with cooked trans. 138,xxx miles $600

Parts I've Acquired so far:
Comp 220/220 .581/.581 .112lsa cam
3200 stall convertor from Circle D
Precision Race Components .625" Single Beehive valve springs
Texas Speed & Performance 7.40 Chromoly push rods
Egr delete kit
Tow Max Trans temp gauge
Tru Cool Trans cooler
CAI
Shorty Headers
3.73 Gears
Vette Servo
Trans go HD-2 shift kit
E fans

Coming soon:
Nelson Performance Mail Order tune (Heard nothing but great reviews)
Pacesetter long tubes
Custom 2.5" dual exhaust with X pipe (not sure on muffler if any)
Ls 6 intake manifold
Underdrive pulleys


Pics: (crappy phone pics)

Motor still in the doner truck


Unpluging the harness form the truck getting ready for engine removal



After selling the front clip off the truck, finally getting to pulling the motor.


Motor on the stand with wiring harness still attached


Starting the clean up after removing the intake manifold and front accessories


looking rough


Finally some parts start coming in. Big thanks to Texas Speed for a fast delivery




ill post more updates as i get further.

[Wrkd_LSX]

The truck it'll all be going into, (needs to be de-chromed,a little altitude adjustment and some new shoes i know)

[Wrkd_LSX]

after the cam & valve spring install, motor still looking rough.



Cleaned up and painted



had some down time at work so i got rid off the dumb looking chrome grill and fender flare/trim? heres some pics of the grill.

[Wrkd_LSX]

Ok, so its been awhile since ive be on here heres some progress so far..

old and worn 4.3 is out


ran into some problems with the motor mounts passenger side v8 4x4 mounts working perfectly but the diver side was way off so ended up having to make an adapter plate out of 1/2 steel to make the 2wd V6 mounts work


"These are not the bolts i used, they were just for mock up"


heres the engine sitting on the new mounts


intake and front drive assembly on (Dirty)


every thing in and plumbed up still waiting on the harness..


3" exhaust with dynomax race bullet no cats..


trans cooler in and mouted


trans temp gauge and fan switch


finally got my harness back from current performance they repinned to work with my 03 fuse block.


just received my tuned PCM from nelson