0
0
Top Categories
All Categories

Top Categories

All Categories


Shop By Vehicle
Account Login
1-800-345-4545
Gift Cards
Track Order
Help
Chevrolet Performance 88958667
Mail-In Rebate
Chevrolet Performance® Summer Block Party Rebate
Expires on: September 30, 2019

Purchase Chevrolet Performance Engine Blocks Or Cylinder Heads and Receive up to $200 On a Prepaid Visa!

Chevrolet Performance R0X SB2.2 NASCAR Aluminum Cylinder Head

809-88958667

Free Shipping Ships on 08/27/19
Save $25 off $250, $50 off $500, $100 off $1,000. Promo Code: RACE2SAVE exclusions apply

$2,064.22
Chevrolet Performance R0X SB2.2 NASCAR Aluminum Cylinder Head $2,064.22
Out of stock
QTY
R0X SB2.2 NASCAR Aluminum Cylinder Head
  • Fully CNC-machined aluminum race head with cast ports and combustion chambers for professional finishing
  • Chevrolet Performance 88958667 Details

    R0X 4.500" Bore Spacing

    Notes:
  • Machined for 4.500" bore center R0X cylinder block - 809-25534453
  • Fully CNC-machined aluminum race head
  • Has cast ports and combustion chambers for professional finishing
  • Special spread head-bolt pattern, 3/8'' fasteners, 19 holes
  • Machined with additional .070'' material on deck face
  • Valve centerlines moved apart .100'' for additional valve clearance and larger valves
  • Valve angles are 11° x 4° intake, and 7° x 2° exhaust
  • Exhaust port positions are slightly reoriented, but same bolt pattern as standard SB2.2
  • ''As-cast peanut'' intake ports
  • ''As-cast peanut'' exhaust ports
  • 28cc ''as-cast'' combustion chambers

  • Specifications:

    Manufacturer's Part Number:
    88958667

    Chevrolet Performance SB2.2 NASCAR Aluminum Cylinder Heads improve durability, simplify preparation, and lower the cost of building/maintaining a competitive small block race engine. "Mirror" intake ports are all angled toward the center of the engine, making these heads perfect for single 4-barrel applications. The spark plug holes were moved for greater combustion efficiency, and 48cc chambers can produce 12.1:1 compression with standard flat-top pistons.

    Features
  • Sold individually
  • HIP-treated* aluminum heads
  • Extra-thick deck for heavy flat milling
  • Extra port material for custom porting
  • Intake/Exhaust Ports: "As-Cast" Peanut
  • Valve spring pads accommodate 1.625" springs
  • T-washers installed in all four center head bolt bosses
  • Replacement -8AN intake port plugs available #809-12480171
  • Revised spark plug location for angled 14mm, 5/8" hex, 3/4" reach, gasket seat plugs
  • Designed for longer-than-stock 2.150"/1.625" valves and aftermarket shaft-mounted rocker arms
  • 4.400" Bore Spacing: 48cc "As-Cast" Combustion Chambers and 11° x 4° Intake, 8° x 0° Exhaust Valve Angles
  • 4.500" Bore Spacing: 28cc "As-Cast" Combustion Chambers and 11° x 4° Intake, 7° x 2° Exhaust Valve Angles

    Requirements
  • Specific left-hand and right-hand pistons
  • Valve Covers #809-12480006 or #809-12480012

  • *HIP stands for Hot Isostatic Pressure. This process puts cylinder heads in a sealed vessel where a vacuum removes room air and any contaminants. The vessel is filled with high-pressure nitrogen (up to 30,000 psi) and then heated to and sustained at the required temperature for a preset length of time. Cooling is also controlled to ensure maximum strength and proper heat treatment. The extreme pressure and heat removes almost 100% of the internal porosities generated during casting. The material integrity, strength, and fatigue life improve significantly.
    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.