Powerhouse 8" Porting Mandrel Seat Belt Hardware all the way back to

all the way back to the first propane kits

2010-2019 Chevrolet Express 3500

0065" gap factor =

050" thick aluminum

Requires Flowtech Headers

Powerhouse 8" Porting Mandrel Seat Belt Hardware all the way back to8 Inch Long Porting Mandrel This porting mandrel is 8" 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