
| Item# | Description | Qty. | MSRP | Your Price | ||
|---|---|---|---|---|---|---|
| 19331470 | $1,258.31 |
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Vortec Bowtie Cylinder Head Technical Notes:
•Cast-iron small runner or large runner cylinder heads
- 66cc combustion chambers
- 0.450" deck thickness
- Hardened exhaust valve seats
- Machined for 2.000"/1.550" valves
- Maximum 0.530" valve lift (without modifications)
- Straight spark plug design
- No heat risers
- Drilled and tapped for 7/16"-14 screw-in studs
- Dual bolt patterns for Vortec and early style intake manifolds (early model P/N 10051103; Vortec intakes P/N 12366573, 12496820, 12496821, 12496822 or 12489371)
- Use intake gasket P/N 89017465 for Vortec intakes or dual pattern intake gasket P/N 19301685 for early model intakes or Vortec design intake manifolds
- Dual bolt patterns for perimeter-style and center-bolt valve covers
- Vortec intake manifold three-step torque specs: 2 lb.-ft.; 9 lb.-ft.; 11 lb.-ft.
Note: Larger intake and exhaust ports allow for a greater volume of air to pass through the engine. The more air you flow, the more power you can make.
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