This oil / fuel gauge line kit includes one (1) #4AN x 24" braided line with straight connections on both ends along with adapter fittings for the block and pressure gauge. The block fitting is a -4AN male x 1/8" NPT male (should work for most SBC racing applications). The gauge fitting is 4AN male x 1/8" NPT Female connection. Off-road use only, not street legal. This kit is equivalent or similar to Southwest Speed 390-003 or Quickcar QRP61-71024.