Description
Crow Cams RB30 Camshaft + Dual Valve Springs for Nissan 6 Cyl Commodore 503TX4
Kit Contains:
Crow Cams 503TX4 Camshaft:
- Street/strip performance cam for turbo applications
- See fitting notes
| Part Number | 503TX4 |
| Camshaft Type | Hydraulic flat tappet |
| RPM Range | 3500 – 7500 |
| Advertised Duration (IN / EX) | 309° / 309° |
| Duration @ .050" (IN / EX) | 250° / 250° |
| Valve Lift, 1.6 Rocker (IN / EX) | 0.528" / 0.528" |
| Lobe Separation Angle | 117° |
| Valve Lash (measured hot)(IN / EX) | HYD / HYD |
Crow Cams Valve Springs 5833-12:
- Heavy Duty Dual Valve Springs
- Set Of x12
- Part Number: 5833-12
Installed Height: 1.570"
Installed Pressure: 105
Pressure @ .5 Lift: 270
Max Lift: .600"
Solid Height: 0.900"
OD: 1.330"
ID of Outer: 0.990"
ID of Inner: 0.760"
Spring Type: 2
RH or LH (Outer): R
Free Length: 2.160"
Spring Rate lb/in: 330
Suits:
Nissan / Holden VL RB30 6 Cyl SOHC Turbo Applications
Fitting Notes:
- Must use performance springs.
- Must use performance retainers.
- Dual valve springs may require head machining to fit
Returns:
Camshafts are test-fit only. Once a cam has been fitted, oiled, or the assembly lube disturbed, it is no longer resalable and cannot be returned. Please check the part number against your order before it goes anywhere near the block.
Supporting Components:
The supporting components specified above are required. Running the cam without them will affect performance and may damage the camshaft.
Tuning & Set-Up:
Check the tuning and set-up requirements for your application before ordering. Some engines require professional tuning, Carburettor or ignition timing adjustment. A change in idle quality, vacuum and drivability is a normal characteristic of a camshaft change — not a fault, and not grounds for return.
Break In:
Where break-in instructions are supplied with the camshaft they must be followed exactly. Incorrect break-in is the number one cause of lobe wear and is not covered under warranty. If instructions are not supplied with your camshaft, message us and we will send you a copy.
Warranty:
Warranty covers manufacturing defect only. Damage caused by incorrect installation, insufficient break-in, incorrect springs, wrong lifter preload or valve-to-piston contact is not covered. Warranty assessment requires the camshaft to be returned to the manufacturer for inspection.
Not sure about something? Message us before you order. We'd rather spend five minutes checking than have you pull an engine apart twice.
Camshafts are test-fit only. Once a cam has been fitted, oiled, or the assembly lube disturbed, it is no longer resalable and cannot be returned. Please check the part number against your order before it goes anywhere near the block.
Supporting Components:
The supporting components specified above are required. Running the cam without them will affect performance and may damage the camshaft.
Tuning & Set-Up:
Check the tuning and set-up requirements for your application before ordering. Some engines require professional tuning, Carburettor or ignition timing adjustment. A change in idle quality, vacuum and drivability is a normal characteristic of a camshaft change — not a fault, and not grounds for return.
Break In:
Where break-in instructions are supplied with the camshaft they must be followed exactly. Incorrect break-in is the number one cause of lobe wear and is not covered under warranty. If instructions are not supplied with your camshaft, message us and we will send you a copy.
Warranty:
Warranty covers manufacturing defect only. Damage caused by incorrect installation, insufficient break-in, incorrect springs, wrong lifter preload or valve-to-piston contact is not covered. Warranty assessment requires the camshaft to be returned to the manufacturer for inspection.
Not sure about something? Message us before you order. We'd rather spend five minutes checking than have you pull an engine apart twice.








