Looking to do a Trailblazer intake manifold swap? Then look no further! Almost every detail or concern will be covered in this video. Be sure to stay till the end, where we even cover the budget of the swap. I hope you enjoy the video, and that it helps you. Be sure to subscribe, and good luck in the garage! This mod applies to gen III LS motors or the 03-06 Silverado/Sierra's.
TBSS & NNBS manifolds are identical. Although pay attention to the intake ports. Gen III intakes will be Cathedral Port, while some newer NNBS gen IV intakes are rectangle port, and will not bolt up the same.
The truck is currently on a 2/4 Mcgaughys drop. Wheel setup is a 22x9 Snowflakes (made by OE performance, called 176M) with 285/45R22 Michelins. Headlights are by YITAmotors. If your interested in a SS bumper swap, here is the link to that video:
https://youtu.be/H1bs-AUOiiQ
Parts I used:
Trailblazer Intake Manifold
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,engine,intake+manifold,5536
Trailblazer Fuel Rails (No Shredder Valve)
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,fuel+&+air,fuel+rail,832
Trailblazer Injectors
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,fuel+&+air,fuel+injector,6224
Injector Adapters
Glennsauto Performance
https://www.glennsautoperformance.com/collections/view-all-products/products/injector-wiring-adapters-multec-ii-to-ev6
GM LS3 Throttle Body
https://paceperformance.com/i-5133050-12605109-ls3-ls7-90mm-dbw-throttle-body.html
X-Link Harness, for 90mm TB conversion
http://torquerush.com/x-link.html
Purge Valve Solenoid
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,exhaust+&+emission
4 Bolt to 3 Bolt TB Adapter Plate
(If your keeping your 78mm DBW Tb)
https://www.speedwaymotors.com/ICT-Billet-551567-Throttle-Body-Adapter-4-Bolt-to-3-Bolt,381886.html
GM Throttle Body Gasket
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,fuel+&+air,throttle+body+gasket,6474
Intake Manifold Gasket (Cathedral Port)
https://www.rockauto.com/en/catalog/chevrolet,2006,trailblazer,6.0l+v8,1432871,engine,intake+manifold+gasket,5424
S&B Cold Air Intake
https://www.sbfilters.com/cold-air-intakes/1999-2008-silverado-sierra-intake-75-5036?variant_id=75
MAP Sensor Retainer Clip
GM# 12615934
https://www.tascaparts.com/oem-parts/gm-m-a-p-sensor-retainer-12615934
C5 Corvette Fuel Pressure Regulator
(Only if you have a return style fuel system)
https://www.rockauto.com/en/catalog/chevrolet,2000,corvette,5.7l+v8,1358579,fuel+&+air,fuel+filter,6200
Aeromotive Universal Bypass Regulator
For High performance applications with AN fittings
(Optional Substitute for C5 fuel pressure regulator)
https://www.summitracing.com/parts/aei-13301?seid=srese1&gclid=EAIaIQobChMIotLCz_2t7AIVA9vACh2CAQijEAQYASABEgKW0fD_BwE
VPE Hose Coupler
4in Inlet - 4.5in Outlet
https://www.summitracing.com/parts/VPE-2837
Drive By Wire TBSS/NNBS/L92 Intake Throttle Cable Bracket.
https://www.glennsautoperformance.com/collections/view-all-products/products/tbss-nnbs-l92-intake-throttle-cable-bracket