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Bow Tie Large Port Vortec Cylinder HeadsSmall Block Chevy Sold Individually
- Large Port Cast Iron Vortec Cylinder Head
- Assembled
- Intake Ports: 225cc
- Exhaust Ports: 77cc
- Combustion Chambers: 65cc
- 1/pkg
Cylinder Head Components - Intake Valves 809-12363757
- Exhaust Valves 809-12363758
- Valve Springs 809-12551483
- 3/8" Rocker Studs (Chevrolet Performance #12552126)
- Valve Spring Retainers (Chevrolet Performance #10212808)
- Valve Stem Seals 809-10212810
- Valve Locks 809-24503856Notes
- Use early model Intake Manifold 809-10185063 or, for best results, Vortec Intake Manifold 809-12366573 (Vortec Intake Manifold 3-step torque specs: 2 ft/lbs, 9 ft/lbs, 11 ft/lbs)
- Use Intake Manifold Gaskets 809-12497760 (Dual bolt pattern)
- Use Exhaust Gaskets 375-1470 (Trimming may be necessary)
- Small Block Chevy Bow Tie Large Port Cast Iron Vortec Cylinder Heads are Chevrolet Performance's most powerful cast iron cylinder head designed for street or race applications in the 400-450 horsepower range. As upgraded production heads, they have a thicker deck surface, large runners, bigger valves, and combustion chambers with exceptional low-lift flow numbers. These cylinder heads provide Chevy's Fast Burn performance in an affordable cast iron option.
- Cast iron
- No heat risers
- Intake Ports: 225cc
- Exhaust Ports: 77cc
- Combustion Chambers: 65cc
- Improved airflow (281 cfm at .600'')
- Deck Thickness: .450''
- Hardened exhaust valve seats
- Machined for 2.00''/1.55'' valves
- Popular in short track racing
- Drilled & tapped for 7/16''-14 screw-in studs
- .530'' maximum valve lift without modification
- Cast Logos: Vortec (intake port roof), GM (intake port floor), Bow Tie (exhaust side)
- Dual bolt patterns for: perimeter and centerbolt valve covers & early model and Vortec intake manifolds
JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.
Features
Part TypeCylinder Head
Product LineChevrolet Performance Small Block Chevy Large Port Vortec Cylinder Heads
BrandCHEVROLET PERFORMANCE
Package Height7.5
Package Width9.5
Package Length21.2
Weight48.2 PG
Part CategoryPerformance Parts
Vendor Part Number25534446
Package Qty1
Package TypeEA
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CHEVROLET PERFORMANCE
Large Port Cast Iron Vortec Cylinder Head Kit Includes: Pair of Cylinder Heads #809-25534446
Part Number : 809-25534446K
$1,78598
CHEVROLET PERFORMANCE
Part Number : 809-25534446K
$1,78598
Some parts are not legal for use in California or other states with similar laws / regulations
