Depends. I believe they came in a few different sizes. V6 and v8s. Mine is a 351 v6.
The 2010 GMC Sierra-1500 has a V6 engine.
The 2011 GMC Sierra-1500 has a V6 engine.
The 2009 GMC Sierra-1500 has a V6 engine.
The 2003 GMC Sierra-1500 has a V6 engine.
The 2013 GMC Sierra-1500 has a V6 engine.
The 2004 GMC Sierra-1500 has a V6 engine.
The 2002 GMC Sierra-1500 has a V6 engine.
The 2007 GMC Sierra-1500 has a V8 engine.
The 2008 GMC Sierra-1500 has a V6 engine.
The 2005 GMC Sierra-1500 has a V6 engine.
The 2012 GMC Sierra-1500 has a V6 engine.
The 2001 GMC Sierra-1500 has a V6 engine.