Powerhouse 6" Porting Mandrel P205Z GP-7 Series ""Extreme Weather"" shield

GP-7 Series ""Extreme Weather"" shield with Hi-Def Pink inner film

6L with Dual Mode Option

AFR's all new 230cc emissions legal cylinder head (CARB EO #D250-4) is hands down

Mercury: Park Lane 66 - 68 7 L Engine

Powerhouse 6" Porting Mandrel P205Z GP-7 Series ""Extreme Weather"" shield6 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