You are buying 1 Brand new cylinder sleeve for the following vehicles.
GM Car 7.4L / 454 OHV V8 16V Chevy 1970-1976
GM Truck, Van, SUV 7.4L / 454 OHV V8 16V Chevy 1971-2000
Wall Thickness: 3/32
Sleeve Length: 7.000"
Sleeve Bore: 4.250"