Description
Crow Cams Camshaft & Spring Kit Aggressive Idle Holden Chev LS1 LS2 LS3 871249K
Manufacturer Part Number: 871249K
Camshaft - 871249
- Hydraulic Roller
- Our most popular LS1 grind
- Tough street cam with big power and torque gains
- Aggressive idle
- Suits cathedral or rectangular heads
- May require stall converter (Check with tuner)
- See fitting notes
Cam Specifications:
| Part Number | 871249K |
| Camshaft Type | Hydraulic roller |
| RPM Range | 2400 – 6300 |
| Advertised Duration (IN / EX) | 273° / 279° |
| Duration @ .050" (IN / EX) | 226° / 232° |
| Valve Lift, 1.7 Rocker (IN / EX) | .608" / .602" |
| Lobe Separation Angle | 112° |
| Valve Lash (measured hot) (IN / EX) | HYD / HYD |
Installed Height: 1.780"
Valve Springs - VTKLS8
- LS dual valve spring kit
- Complete with springs, retainers, locks & seals
VTKLS8 Kit Contains:
- 4438-16 - Valve Springs (spring pressure 165lbs @ 1.780" and 330lbs @ .500" lift)
- 10708-16 - Retainers
- 10701-16 - Valve Locks
- VSV900VTEX-16 - Top Hat Valve Stem Seals
VTKLS8 Spring Kits are suited for hot street LS Camshafts. Can support up to .650" lift and give the added security of dual springs. The VTKLS8 is our most popular spring kit for street applications.
Suits:
Holden/Chev LS1 LS2 LS3 LS6 LS7 L98 Engines - 3 Bolt cathedral or rectangular heads
Fitting notes:
- Must use performance springs supplied in kit
- Must use performance retainers supplied in kit
- Converter stall speed should be equal to or greater than the minimum RPM of the cam power range
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.



