themechanic
Oklahoma is OK
- Local time
- 7:28 PM
- Joined
- Nov 11, 2012
- Messages
- 20,971
- Reaction score
- 26,985
- Location
- Moore, Oklahoma
These pulleys were on my rebuilt 74 RV 440 when I bought it in 2012. I recently learned they are not correct for a car with AC and PS. The engine used 3 belts with this configuration.
The water pump pulley is a single groove 6 7/8" x 2 11/16". It apparently is for a non-AC car.
The crank pulleys are a combination of a 2-groove 7 1/4" x 3 1/8", and a 3-bolt, single groove pulley that bolts insude the 2-groove pulley. 6 1/2" x 3 3/4".
The water pump pulley is a single groove 6 7/8" x 2 11/16". It apparently is for a non-AC car.
The crank pulleys are a combination of a 2-groove 7 1/4" x 3 1/8", and a 3-bolt, single groove pulley that bolts insude the 2-groove pulley. 6 1/2" x 3 3/4".