Powerhouse 6" Porting Mandrel H775C15 2007-2007 GMC Sierra 1500 Classic

2007-2007 GMC Sierra 1500 Classic

2-1/2" x 14" Coil-over Springs

a properly designed damper also removes the twist from the crankshaft while stabilizing camshaft and ignition timing

1967-1974 Plymouth Barracuda

3L2014+ GMC Sierra 1500 4

Powerhouse 6" Porting Mandrel H775C15 2007-2007 GMC Sierra 1500 Classic6 Inch Long Porting Mandrel This porting mandrel is 6" long with a 1" x 18" wide tip. Works with all Powerhouse cartridge rolls 1 4 Inch in Diameter. See our POW351510 Kit. Powerhouse produces an extensive line of tools designed for engine builders and tuners. Their product lineup includes specialty tools for everything from the cylinder head and valvetrain to the block and drivetrain. Powerhouse Products is your 1 stop source for automotive specialty