COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style Oil Pressure Sensor Patented VacPipe cooling integrated heat

Patented VacPipe cooling integrated heat sink allows for plug & play installation as easy as replacing a stock bulb

Single-Layer Pyrovatex® FRC Construction

2 gpm Flow

Solder Slug

Chevy Fullsize Car 1955-56

COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style Oil Pressure Sensor Patented VacPipe cooling integrated heatCOMP 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