If you can can you take some pictures of your setup and post them I would most appreciate it. I'm going to order the wiring harness and accessories from current performance for the swap. I'm picking the engine up Wednesday it's out of an 03 Yukon with the tac module and gas pedal and ECU.
5.3L N 2 2004 2dr Blazer Ls Updated 01/10/2023
Update.01/10/2023
2004 Chevy Blazer Ls 2dr. I am putting a 5.3L (L59) from a 03 GMC Yukon drive by wire with the summit racing Pistons Chevy performance head gaskets and 243 heads Mill down to 62 CC my compression will be 10.6.1 CR. Should work well with the 2004 LS6 Corvette camshaft I'm going to be using. And a 2006 4L60E C/N 6CPD C-Police Truck transmission from a retired NYPD fleet Chevrolet Tahoe.
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Parts list.
5.3L L59 from 2003 GMC Yukon SLT.
159K Miles on it when pulled.
New GM Performance Camshaft from 2004 LS6 Corvette P/N 12565308.
Gen 3 243 64cc Heads milled down to 62cc.
DELPHI 12613412 50lb Ev6 injectors.
Chevrolet Performance Head Gaskets -12575329 Compressed Thickness 0.052 in.
Chevrolet performance valve springs P/N 19420455.
Brian Tooley Racing Rocker Arm Trunnion Upgrade Kit BTRTK001NB.
Gen IV Rods P/N 19209286.
ARP 134-3609 Performance Series Cylinder Head Bolt Kit.
ARP 134-6006 Connecting Rod Stud Kit.
Current performance Motor mounts & Blazer 2WD transmission crossmember RCS10B-700 .
GM 302-1 muscle oil pan
GM PERFORMANCE Dipstick Tube P/N 12570787
GM PERFORMANCE Dipstick P/N 12570788
Holly Blackheart exhaust manifold P/N 7122 30 26 HKR.
2006 C/N 6CPD C-Police Truck 4L60e transmission from a retired NYPD fleet Chevrolet Tahoe with TransGo shift kit HD-GM92 TMBX torque converter for now.
Also with Sonnax heavy duty 3-4 clutch plate kit with 7 clutch pack I'm using Raybestos GPZ105 clutch set and upgraded to AC-Delco P/N (24241244) rear heavy duty 5 - pinion planetary and I order a Sonnax 77284-K front six pinion planetary it will change first and second gear ratio. First Gear Ratio: 2.84: 1, Second Gear Ratio: 1.55:1.
Holly Blackhart AC evaporator side cover P/N 71223028HKR.
Speedway motors 4130 chromoly steel Upper Control Arm P/N 91605012
LS1 Camaro / GTO water pump with LS1 Camaro / GTO harmonic balancer. With modified alternator / power steering bracket to line up with GTO harmonic balancer and water pump.
Melling M295HV High Volume Oil Pump with 60 PSI spring.
Melling BD417-DBRKT - Melling Timing Chain Dampener Bracket
Dirty Dingo DD-LS-AC-LM-CMV lower passenger side mount A/C bracket kit with Sanden SD7B10 mini compressor.
Quantum-340lph-direct-drop-in-performance-fuel-pump-assembly for 2dr 2wd Blazer P/N QFS-A822HV.
AEM (30-4110) UEGO Air/Fuel Ratio Gauge
Summit Racing SUM-326943780-2F Forged Pistons + 2cc dome Bore 3.780.
My compression will be 10.6.1 CR.
Custom engine cover for TBSS intake manifold.
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After
![Motor vehicle Automotive lighting Entertainment Audio equipment Automotive engine gasket]()
![Automotive tire Gas Motor vehicle Auto part Nut]()
![Automotive air manifold Motor vehicle Gas Auto part Engineering]()
Camshaft from 2004 LS6 Corvette P/N 12565308.
![Wheel Tire Automotive tire Locking hubs Motor vehicle]()
![Automotive tire Motor vehicle Automotive design Automotive lighting Rim]()
![Wheel Car Tire Land vehicle Vehicle]()
Suspension
Front
Belltech spindles P/N.2102 and 2/3-in drop springs P/N.23228.
Rear
Belltech 3-in drop leaf springs P/N.5964. with 1-in lowering block with2 Degree Taper P/N 6002.
Sitting on Vision-Torque 20x8.5 & 235/35/R20 Tires.
2004 Chevy Blazer Ls 2dr. I am putting a 5.3L (L59) from a 03 GMC Yukon drive by wire with the summit racing Pistons Chevy performance head gaskets and 243 heads Mill down to 62 CC my compression will be 10.6.1 CR. Should work well with the 2004 LS6 Corvette camshaft I'm going to be using. And a 2006 4L60E C/N 6CPD C-Police Truck transmission from a retired NYPD fleet Chevrolet Tahoe.
Parts list.
5.3L L59 from 2003 GMC Yukon SLT.
159K Miles on it when pulled.
New GM Performance Camshaft from 2004 LS6 Corvette P/N 12565308.
Gen 3 243 64cc Heads milled down to 62cc.
DELPHI 12613412 50lb Ev6 injectors.
Chevrolet Performance Head Gaskets -12575329 Compressed Thickness 0.052 in.
Chevrolet performance valve springs P/N 19420455.
Brian Tooley Racing Rocker Arm Trunnion Upgrade Kit BTRTK001NB.
Gen IV Rods P/N 19209286.
ARP 134-3609 Performance Series Cylinder Head Bolt Kit.
ARP 134-6006 Connecting Rod Stud Kit.
Current performance Motor mounts & Blazer 2WD transmission crossmember RCS10B-700 .
GM 302-1 muscle oil pan
GM PERFORMANCE Dipstick Tube P/N 12570787
GM PERFORMANCE Dipstick P/N 12570788
Holly Blackheart exhaust manifold P/N 7122 30 26 HKR.
2006 C/N 6CPD C-Police Truck 4L60e transmission from a retired NYPD fleet Chevrolet Tahoe with TransGo shift kit HD-GM92 TMBX torque converter for now.
Also with Sonnax heavy duty 3-4 clutch plate kit with 7 clutch pack I'm using Raybestos GPZ105 clutch set and upgraded to AC-Delco P/N (24241244) rear heavy duty 5 - pinion planetary and I order a Sonnax 77284-K front six pinion planetary it will change first and second gear ratio. First Gear Ratio: 2.84: 1, Second Gear Ratio: 1.55:1.
Holly Blackhart AC evaporator side cover P/N 71223028HKR.
Speedway motors 4130 chromoly steel Upper Control Arm P/N 91605012
LS1 Camaro / GTO water pump with LS1 Camaro / GTO harmonic balancer. With modified alternator / power steering bracket to line up with GTO harmonic balancer and water pump.
Melling M295HV High Volume Oil Pump with 60 PSI spring.
Melling BD417-DBRKT - Melling Timing Chain Dampener Bracket
Dirty Dingo DD-LS-AC-LM-CMV lower passenger side mount A/C bracket kit with Sanden SD7B10 mini compressor.
Quantum-340lph-direct-drop-in-performance-fuel-pump-assembly for 2dr 2wd Blazer P/N QFS-A822HV.
AEM (30-4110) UEGO Air/Fuel Ratio Gauge
Summit Racing SUM-326943780-2F Forged Pistons + 2cc dome Bore 3.780.
My compression will be 10.6.1 CR.
Custom engine cover for TBSS intake manifold.
After
Camshaft from 2004 LS6 Corvette P/N 12565308.
Suspension
Front
Belltech spindles P/N.2102 and 2/3-in drop springs P/N.23228.
Rear
Belltech 3-in drop leaf springs P/N.5964. with 1-in lowering block with2 Degree Taper P/N 6002.
Sitting on Vision-Torque 20x8.5 & 235/35/R20 Tires.
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Thanks oldeerslayer & Rhotpursuit for getting back to me with the pictures and info I will take all the information I can get on the doing this swap. I picked up the 5.3 today had to wait 3 days for them to pull it out.
![348428]()
And here the beast it came from. 03 GMC Yukon SLT
![348429]()
And here the beast it came from. 03 GMC Yukon SLT
Just ordered a LS bellhousing and HD-GM92 TMBX torque converter .I decided to swap the 4.3 bell housing off my 4l60e instead of doing the spacer on the flywheel to make the 4.3 bell housing and converter work.
![348663]()
A picture from the inside of my new radiator making sure it was a three row like they said. The eBay fans need to go but for $170.00 to my door can't beat the price radiator with fan shroud cut for two 12-in fans. I have the same radiator in my work truck for the last 5 years with no issues.
![348825]()
![348826]()
I got lucky today found a good 4l60e (C/N 6CPD C- Police Truck) out of a 06 Tahoe 2wd from NYPD fleet vehicle for $190.00 at my local Pick-n-Pull looks like it was rebuilt back in March of 2017 there's a sticker on the torque converter. The only bad thing is the brain surgeon that works there used an air chisel to poke a hole through the pan and it went through the 1-2 accumulator housing then they used that yellow crayon like marker to try to plug up the hole and turn the fluid yellow-ish red in the pan. So I need to replace the pan and the 1-2 accumulator housing and it should be all good. I'm going to check with my local transmission shops see if any of them have a transmission Dyno so I can have them check it out.
Update 12/30/22. Spoke with PDQ. The torque converter pictured below I found out is not the correct one for this particular 4L60e this torque converter is for a 05-06 4.3L 4L60e with a stall of 1800 to 2000 RPM. PDQ told me to remove it and toss it in the garbage. They said it's probably damaged from me and installed onto the wrong engine and more likely dump carbon weave all through the transmission if I try to use it. I already have a new HD torque converter to replace it.
![349286]()
![349306]()
![349287]()
![349288]()
Update 12/30/22. Spoke with PDQ. The torque converter pictured below I found out is not the correct one for this particular 4L60e this torque converter is for a 05-06 4.3L 4L60e with a stall of 1800 to 2000 RPM. PDQ told me to remove it and toss it in the garbage. They said it's probably damaged from me and installed onto the wrong engine and more likely dump carbon weave all through the transmission if I try to use it. I already have a new HD torque converter to replace it.
Just picked up a set of 243 heads today a good match for my LS6 cam. And I also finished up my 06 (C/N 6CPD C- Police Truck) 4L60e I replaced the pan that was damaged and replaced the 1-2 accumulator housing that was also damaged. I also did a TransGo SK-4L60E Shift Kit & Valve Body Separator Plate . And I cleaned and painted the transmission.
![349617]()
![349624]()
I finally got my Hooker manifolds 71223026HKR . I originally ordered them from Holly but after 6 months of waiting they email me yesterday morning saying they will not have them until October of this year. So I canceled the order with Holly and ordered them from summit racing yesterday got them today. Now I need to sand off where it says hooker then take them over and have ceramic coating done and it will look nice and help keep some of the heat off the upper a-arms. . And for you guys that ask why here in California where they suck the fun out of everything automotive they're not legal for Street use here.
![349661]()
I sanded and retextured my hooker manifolds today now I need to take them over to the powder coat shop to have them do the ceramic coating.
Before
![350027]()
After
![350024]()
![350025]()
Before
After
UPS finally showed up with my 243 heads yesterday now I can get them off to the machine shop.
![350030]()
![350031]()
Update I found out my frame is bent in the front end. It is completely fubar. So I picked up another frame to put in my blazer the good thing about that is I can set up the 5.3 and get the prep work done on the frame before I put it in the Blazer. Also clean and paint the frame . I know it's not necessary nobody really looks at the frame but I know it's nice.
![352809]()
![352810]()
And may the donor Blazer Rest In Pieces.
![352811]()
![352812]()
And may the donor Blazer Rest In Pieces.
1 - 20 of 155 Posts
