12480004
Cylinder Sleeve (standard)

• Standard-bore steel cylinder sleeve for new-design aluminum Small-Block V-8 and 90° V-6 aluminum blocks, including P/N 10134400, P/N 10134351, P/N 10185075, and P/N 10134371

NOTE: Sleeve has 3.980" bore; can be overbored to 4.135".