2004 Silverado: 4.3L to SBC swap
#1
Hello everyone.
Following the thread on the build of my Small Block Chevy.
https://www.performancetrucks.net/fo...d.php?t=420932
The swap has began.
Sept 6th, 08:
Parked the truck, removed a few body panels. Disconnected the battery, drained the coolant. Removed the radiator hoses, removed the accessory brackets- Alt & PS pump. Unplugged all of the engine sensor harnesses, unhooked the Y-pipe from the headers. Removed all of the bell housing bolts, disconnected the torque converter from the flexplate.


Modified the A/C bracket & spaced the A/C compressor to work with the tall valve covers.






Unhooked all of the engine wiring harness & brackets from the motor and began to pull.

..and pull

and than tug

and drop

This is where I am at, after a short break and cool down from the 90+ degree heat out there.
This afternoon/evening I plan to change the torque converter out for my 3000 stall unit, change the motor mount brackets for the V8 ones, and splice the V8 fuel injector plug in onto the 4.3L harness.
Cheers ~Mykk
Following the thread on the build of my Small Block Chevy.
https://www.performancetrucks.net/fo...d.php?t=420932
The swap has began.
Sept 6th, 08:
Parked the truck, removed a few body panels. Disconnected the battery, drained the coolant. Removed the radiator hoses, removed the accessory brackets- Alt & PS pump. Unplugged all of the engine sensor harnesses, unhooked the Y-pipe from the headers. Removed all of the bell housing bolts, disconnected the torque converter from the flexplate.


Modified the A/C bracket & spaced the A/C compressor to work with the tall valve covers.






Unhooked all of the engine wiring harness & brackets from the motor and began to pull.

..and pull

and than tug

and drop

This is where I am at, after a short break and cool down from the 90+ degree heat out there.
This afternoon/evening I plan to change the torque converter out for my 3000 stall unit, change the motor mount brackets for the V8 ones, and splice the V8 fuel injector plug in onto the 4.3L harness.
Cheers ~Mykk
Last edited by 04SilveradoMykk; Sep 7, 2008 at 11:43 AM.
#2
Finished up day one by:
tossing the V6 motor mount brackets and bolted in the new V8's

Filled up the new 3000 stall locking torque converter and stabed it into place.

Started grafting the V8 plug to the harness

Repinned the PCM to match the V8, inclduding running two new leads


Tomorrow is another day
Cheers ~Mykk
tossing the V6 motor mount brackets and bolted in the new V8's

Filled up the new 3000 stall locking torque converter and stabed it into place.

Started grafting the V8 plug to the harness

Repinned the PCM to match the V8, inclduding running two new leads


Tomorrow is another day
Cheers ~Mykk
#7
Last edited by thunder550; Sep 7, 2008 at 11:52 AM.
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#8
He is in Phoenix and as long as it passes the OBDII plugin test, and has no codes, no problem. They don't really do a visual, not could they tell the motor is any different,
Thunders truck just passed, 
EDIT: Chris beat me to it,

EDIT: Chris beat me to it,



Can't wait to see how she runs!