Cylinder Head number: *906, *062
Aprox. Year: 1996-2012
1 piece rear main seal.
6 bolt timing cover plastic.
8 bolt intake.
Mechanical or electric fuel pump.
260 hp aprox.
Vortec model.
Cylinder Head number: *193, *083, *217
Aprox. Year: 1988-1995
1 piece rear main seal.
Valve covers bolt down center.
2 bolt main. Has metal timing cover.
12 bolt intake. 260 hp aprox.
3 and 5 days withing the EU, up to 10 days elsewhere.
Can be returned or exchanged, with conditions.