Overview
This complete steel hold down kit is for a shaft-mounted rocker arm system on the Mopar big block 383–440 (B / RB wedge). Heavy-duty machined steel hold downs (stands) replace cast or worn supports and won't flex or crush under high spring pressure. That keeps the rocker shafts rigid and the valve geometry consistent. The kit includes the 3/8" studs and fasteners plus a spacer and shim kit to set rocker alignment, so you have everything needed to mount a pair of rocker shafts.
It suits performance builds running aluminium or stainless shaft rocker arms. Rocker shafts and rocker arms are not included. Check your cylinder heads, shaft diameter and hold down bolt size (3/8") against your existing setup before ordering.
- Engine: Mopar big block 383–440 (B / RB wedge)
- Hold down hardware: 3/8" studs and nuts
- Material: heavy-duty machined steel, black finish
- Includes: hold downs, studs, nuts, washers, spacers and shims
- Rocker shafts and rocker arms sold separately
- Suits aluminium or stainless shaft rocker arms
- Manufacturer part number: 9544005
- Image is generic, for illustration only; actual product may differ in appearance.
| Make | Model | Years | Notes |
|---|---|---|---|
| Chrysler / Dodge / Plymouth | Big Block B engine 383 / 400 | 1959-78 | Shaft rocker system with 3/8" hold down hardware; check your head and shaft |
| Chrysler / Dodge / Plymouth | Big Block RB engine 413 / 440 | 1959-78 | As above; also suits US and Australian imported big block builds |
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Additional Information
| SKU | 61051 |
|---|---|
| Part Type | Rocker Shaft Hold-Down Kit |
| Section | Rocker Gear |
| Department | Cylinder Heads, Cams & Valvetrain |
| Factory Part Number | PRW 9544005 / MotorState PQX9544005 / Summit PQX-9544005 / UPC 842864021162 |
| Sale Unit | Each |