This is the routing diagram for a 454 engine using v-belts only, not a serpentine belt.
The following abbreviations are used :
- C - Crankshaft
- S - Smog pump (A.I.R.) system
- W/P - Water Pump
- Alt - Alternator / Generator
- A/C - Airconditioner
- P/S - Power steering(In some installations also includes the brake booster pump)
This particular setup is most prevalent in motorhomes. Refer to the diagram.
1 is for the first groove on the crank(closest to the block), and
utilizes the 1st groove on the power steering.(belt no : 15415)
2 is for the 2nd crank groove and utilises the 1st groove on the water
pump pulley, the A/C pulley and the 2nd groove on the P/S pulley.(belt
Diagram 3 is for the 3rd groove on the crank
If your motorhome uses a serpentine belt it replaces the belt in track number 3. (serpentine belt no : 6K560)
The upper smog pump(not shown in diagrams) is powered from the powersteering (Hydraboost) pulley (V-belt no : 15450)