Head Bolts Fit 97-04 Hummer GMC Cadillac Chevrolet Buick 4.8L 5.7L & 6.0L Conversion / Lower Gasket Set VIN CODE "B" - ENGINEERING

VIN CODE "B" - ENGINEERING #XS7G-6051D1 STAMPED ON HEAD GASKET

Full Gasket Set Head Bolts Fit 00-03 Ford Explorer Ranger Mazda B4000 Mercury

VIN CODE "N"

4L 2438CC L4 DOHC SUPERCHARGED

6L 1598CC 98CID L4 SOHC TURBOCHARGED

Head Bolts Fit 97-04 Hummer GMC Cadillac Chevrolet Buick 4.8L 5.7L & 6.0L Conversion / Lower Gasket Set VIN CODE "B" - ENGINEERINGRemark: These engines have two different designs for the head bolts. 1st design head bolts have 16 Long Bolts: 150mm, 4 Short Bolts: 100mm, 10 Small Bolts: 45mm. 2nd design head bolts have 20 Long Bolts: 100mm, 10 Small Bolts: 45mm. This kit ONLY FITS engine with 1ST DESIGN HEAD BOLTS (16 long bolts: 145mm, 4 short bolts : 100mm, 10 small bolts: 46mm). Please double check your engine head bolts to make sure this kit will fit your engine before making