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.

#23

Block Casting number: 14102058, 14093627, 14088551,

*535

Aprox. Year: 1985-1987

With Carburetor, 1 piece rear main seal.

Valve covers bolt arount perimeter. 200 & 230 hp aprox.

Double check rear main seal.

#23

#23

#52

Replaces: 220-810843 for Mercruiser

Block Casting number: *880

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.

Block Casting number: 14102058, 14093627, 14088551,

*535

Aprox. Year: 1987-1999

1 piece rear main seal.

Valve covers bolt down center.

10 bolt metal timing cover.

12 bolt intake.

#46

Block Casting number: 14101148, 14093638, 14088548, 10054727, *526

Aprox. Year: 1988-1985

1 piece rear main seal.

Valve covers  bolt down center.

2 bolt main. Has metal timing cover.

12 bolt intake. 260 hp aprox.

Replaces:

#28

Replaces: Mercruiser: 11973, 26-97335, 42750, 54799, 59341, 59341A1, 79223, 97335, FI1101076, FI1101263; Volvo: 3853135, 3853341, 856665; Bombardier: 0508990, 3853135, 3853341