Head bolt with special domed head profile as used on 1938 – 1940 Cadillac V-16 431 engines.
Cadillac part number 1423547, group number 8.2320.
18 Used per car.
Material: 4140 Steel, heat treat grade 8
Finish: Natural
Thread: 7/16-14
Thread length: 15/16
OAL: 2.587
Length under head: 2.125
Hex: 11/16
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