so all i need is the 5.3 engine? I can use my wiring harness and all accesories and all, ? also, again, the truck is a 1999 and your positive any 5.3 from 1999-07 is fine? Just wondering cause the junkyards around here list them as year specific.Thanks again all
Correct. Any from 99-06. Half of the 07s are Gen IV and require more work. You can tell by the heads and intake.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
ok thanks, now, i see that HP and torque went up through the years from 1999-06, was that in the engine designs or the fuel injection? if it was changes in the engine, what year 5.3 should i look for to get more HP and torque?
I haven't seen drastic changes other than the heads changed from Casteks to 862s at some point. 862 heads are what you want.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
The power differences came from the tuning.
2006 SilveradoLittle Black Bitch
if the crank sensor behind the starter is light grey then it is a gen4 and will not work with your PCM without buying a pulse converter box, a couple hundred more dollars added to the swap.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Or if it has a 4bolt TB, or if it has 243 or 799 heads.Originally Posted by RedHeartbeat
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
If you were to get the PCM from a 99-02 5.3, you don't have to have the VATS turned off. You just need to do the security relearn procedure.
Not a good chance that the PCM will have all the exact options you need like gear ratio, tire size, etc. though. So you will need a retune anyway. Best bet is to send your existing PCM in and get it swapped to 5.3 config.
also, make sure to reuse your cable throttle body.
ps - this topic's been covered eleventybillion times on here. just click around with the search box & you should be able to find just about every question you've asked so far
00 FRC - just top end, exhaust, and a hot-air intake
99 Sierra - 5.3 / 5spd
↓ click the pic for the build ↓
ok, after reading about the crank sensor and heads and all, let me ask it a different way, in order to drop in a 5.3 without anything else besides a pcm retune, what year model 5.3's will work, meaning i dont have to worry about checking head numbers or crank sensor colors or any of that..1999 only or? Truck is a 1999
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