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1979-1980 Chevrolet G20
2018-2019 Dodge Durango
max power at 70008000+RPM
1-1/2 in Bore
Powerhouse 1" Porting mandrel ICM 1979-1980 Chevrolet G201 Inch Long Porting Mandrel This porting mandrel is 1" 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
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