Hooker 12 mm x 1.75 Thread Bolt - 4.724" Long - Hex Head - Grade 10 - Nuts Included - Steel - Zinc Plated - Engine Mount - GM LS-Series/LT-Series H753C39 7 x 3 in Top

7 x 3 in Top

Included is the proper drill bit size

1/2-14 Npt

Oil Filter -AC Delco(R) PF48 or equivalent)

Hooker 12 mm x 1.75 Thread Bolt - 4.724" Long - Hex Head - Grade 10 - Nuts Included - Steel - Zinc Plated - Engine Mount - GM LS-Series/LT-Series H753C39 7 x 3 in TopProduct Description: Bolt 12 mm x 1. 75 Thread 5. 906 in Long Hex Head Grade 10 Nuts Included Steel Zinc Plated Engine Mount GM LS Series LT Series Kit In 1962 Gary Hooker designed a header for his new 409 Chevrolet. He immediately found a demand for this header from other racers in the area. It was not long before Gary had hired employees and was operating Hooker Headers out of a building in South Ontario, CA. The Hooker philosophy was simple make