These are some ORIGINAL GM ALUMINUM INTAKE FOR THE 427 CHEVY ENGINE WITH RETANGULAR PORT HEADS AND HOLLEY CARBURETOR. INTAKE IS A GM ISSUE 3933163 AND WAS PUT INTO SERVICE FOR USE ON LATE 68-69 CAMARO, Late 68-69 CHEVELLE, NOVA, IMPALA WITH THE 396 L78 ENGINE/ 375 HP, ALSO 69 PASSENGER CAR, CHEVELLE AND CAMARO WITH THE RARE (COPO), 427 L72 engine/ 425 HP. There are 3 left. Two of them have date codes. The orange one dose not. I have not found any the have welds or cracks. Most bolt holes are in fair to good shape. Let me know if you need more info. I will only ship in the 48 lower U.S.