Powerhouse 6" Porting Mandrel H775C15 Estate Wagon 1979-1975

Estate Wagon 1979-1975

2007-2007 GMC Sierra 1500 Classic

Compatible throttle bodies available under 54092 and 54090

17" mirror kit with 2" - 5 1/2" range bolt-on brackets for 1 1/2" roll bar

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

Powerhouse 6" Porting Mandrel H775C15 Estate Wagon 1979-19756 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