COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style H77803FS 2004-2005 GMC Envoy XUV

2004-2005 GMC Envoy XUV

GM Fullsize SUV / Truck 1999-2009

There are a couple of small items to check to see if you have the proper size valve locks for your valves

1992-1999 Chevrolet K1500 Suburban

Oil Cooler

COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style H77803FS 2004-2005 GMC Envoy XUVCOMP Cams Top Dead Center Stops are designed to positively stop the piston in order to find top dead center. The bolt style screws into the spark plug hole, while our universal plate type bolts across any cylinder bore when the heads are off. Designed for heads on applications, this piston stop features 18mm thread for use in Big Block Ford engines. Positively stop piston in order to find Top Dead Center (TDC); Bolt style screws into spark plug hole