Crow Cams Holden V8 253-308 Solid — 5806
Crow Cams Holden V8 253-308 Solid — 5806
Holden V8 253-308 Solid — 5806
High lift cam, max upper RPM. Needs head mods, headers, carbies, ignition.
Camshaft specifications
| Supplier part number | 5806 |
|---|---|
| Engine / head family | Holden 253–308 with early cylinder heads |
| Operating range | 3300 - 6500 rpm |
| Advertised duration — inlet / exhaust | 281° / 294° |
| Duration at 0.050 inch — inlet / exhaust | 245° / 255° |
| Valve lift at 1.65 rocker ratio — inlet / exhaust | .537'' / .557'' |
| Lobe separation angle | 108° |
| Hot lash — inlet / exhaust | .018" / .022" |
Supplied contents
One camshaft. Lifters, springs, retainers, locks, seals and drive hardware are separate unless expressly included in an agreed package.
Profile-specific fitting requirements
Performance valve springs are required. Performance spring retainers are required. Fitting the specified hardware requires machining. Use the specified performance valve seals. For an automatic transmission, Crow specifies converter stall at or above the lower end of the cam’s operating range. The listed operating range applies to the 308; increase both ends by 500 rpm for a 253. For flat-tappet installation, Crow recommends two bottles of ZDDP additive: one for run-in and one for the first oil change. Follow Crow’s current run-in procedure and the product dosing instructions.
Companion parts listed for this profile
These are separate supporting components and may include alternative spring or hardware choices. BBT can check which combination is required; do not order every listed option as one package.
- CRHL8167 — Holden V8 Roller Rockers
- GP308 — Holden V8 253-308 Guide Plates
- CS8308 — Holden V8 Timing Chain Set
- 7333-16 — Dual Valve Springs - 8cyl
- 11710-16 — Holden V8 & SBC Chrome Moly Retainers - Set of 16
- VSV530-16 — Blue Viton Valve Stem Seal .530" x .342" (11/32") - Set of 16
- CST100940 — Rocker Studs 7/16" Heads to 7/16" Rocker
- ZDDP-2 — Dura Cam ZDDP Oil Additive - 2 pack
- AT992T-16 — GM Heavy Duty Solid Lifters - Set of 16
- DG4 — Holden V8 Oil Pump Gear
- DG8 — Holden V8 Distributor Gear
- 4133-16 — Square Groove Std Height Machined Valve Locks - Set of 16 pairs
Contact BBT for any companion part without a product link.
Installation and BBT support
Confirm the actual engine capacity, cylinder-head design and induction system before ordering. The installer must check cam timing, piston-to-valve clearance, spring installed height, coil bind, retainer-to-seal clearance, pushrod length and rocker geometry. Hydraulic preload or mechanical lash must match the selected profile. BBT can help assemble the engine-specific package and arrange installation and calibration.
Product System
- Engine Parts
Vehicle Fitment
- Holden Torana Lh Uc
Confirm chassis, engine, drivetrain and production-year compatibility before ordering.