Kansas Racing Products president Doug Thompson with his Chevy S-10 Lincoln Welders-ARCA Truck. Kansas Racing Products manufactures an inline four cylinder block that uses a V-8 small block cylinder head, GM, Ford or Mopar. The ARCA Truck Series mandates a limit of 175 cubic inches for displacement, a 12 to 1 compression ratio and use of a 390 cfm two-barrel carburetor. In that configuration, a KRP inline engine will produce about 320 horsepower on racing gasoline.