Description
Crow Cams 871223 LS1 Aggressive Idle Cam Kit Springs Lifters Gaskets Bolts
Kit Includes:
1999–2003: part 12498545-2 (3-length set)
2004 onwards: part 17800568-2 (2-length set)
Camshaft - 871223
Kit Includes:
- Holden V8 LS 3 Bolt Camshaft: 871223
- Dual Valve Springs: 4438-16
- Chrome Moly Retainers: 10708-16
- Single Groove Locks / Collets: 10701-16
- Top-Hat Valve Stem Seals: VSV900VTEX-16
- Genuine GM LS7 Lifters & Buckets: 12499225 + 12595365-4
- Genuine GM LS1 5.7L Head Gaskets: 12498544
- Genuine GM Head Bolts: 17800568-2 or 12498545-2
1999–2003: part 12498545-2 (3-length set)
2004 onwards: part 17800568-2 (2-length set)
Camshaft - 871223
- Lumpy street cam
- High acceleration rate and great power gains
- Aggressive idle
- Easy on valve springs for sustained high RPM
- Suits cathedral or rectangular heads
- Requires stall converter
- Installed Height 1.780"
- See fitting notes
| Part Number | 871223 |
| Camshaft Type | Hydraulic roller |
| RPM Range | 2600 – 6300 |
| Advertised Duration (IN / EX) | 302° / 299° |
| Duration @ .050" (IN / EX) | 229° / 235° |
| Valve Lift, 1.7 Rocker (IN / EX) | .584" / .585" |
| Lobe Separation Angle | 112° |
| Valve Lash (measured hot) (IN / EX) | HYD / HYD |
Valve Springs - VTKLS8:
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.
Genuine GM Parts:
Genuine GM LS7 Lifters & Buckets: 12499225 + 12595365-4
- LS dual valve spring kit
- Complete with springs, retainers, locks & seals
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.
Genuine GM Parts:
Genuine GM LS7 Lifters & Buckets: 12499225 + 12595365-4
- 16x 5250 LS7 Lifters
- 4x 12595365 GM LS Guides
- Sold as a pair
- To suit LS1 only
- 12498544
- Full Engine Set of Head bolts
- 17800568-2 or 12498545-2
- Holden/Chev V8 LS1 5.7L 1999 - Onwards with 3 Bolt Cathedral Port Heads
- Must use performance springs Included in kit
- Must use performance retainers Included in kit
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 run-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 run-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.