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2005 Envoy 5.3 LH6 intake manifold vs 2006+ TBSS intake manifold

11K views 3 replies 1 participant last post by  omc8 
#1 ·
Im trying to find info on the 2005 LH6 intake . Im going to call this intake a Tweener because it is in between years, old vs new style. Its a old style intake with a 4 bolt 87 mm tb. part # 89017588. From what I found it was only used on GMT 360/370 platform in 2005. In 2006 they went to the TBSS/NNBS intake. My question is does anyone have a 2005 Trailblazer or Envoy that came with the TBSS intake on it ?
 
#4 ·
Here are the precedes and follows to 2005 LH6 intake Manifolds .

2003-04 LM4 5.3 Old Style Truck intake 3 Bolt 78mm tb 89017366 or 89017229

2005 LH6 5.3 Tweener Old Style intake 4 Bolt 87 mm tb 89017588

2006 LH6 5.3 TBSS/NNBS intake 4 Bolt 87 mm tb 12580420
 
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