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Upgrade Your Small Block’s Stock Cast-Iron Exhaust Manifolds with High-Flow Manifolds from HookerYouTube Button

Hooker Small Block Chevrolet Exhaust Manifolds

Small Block Chevy Universal Exhaust Manifolds, Raised D-Port, 2.5" collector, Silver Ceramic Finish

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Header Finish

PART# 8527-1HKR

$400.00   Suggested Retail
$359.95   Your Price
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Overview

Hooker's new cast iron small-block Chevy exhaust manifolds offer an increase in performance and visual appearance over stock-style manifolds. Their compact design fit into a wide variety of replacement and engine swap applications. This means you get the traditional look and easy fitment of a stock style exhaust manifold but now with a smoother, cleaner appearance, plus more modern features. These manifolds are cast out of high silicon-molybdenum ductile iron for high temperature strength and better resistance to oxidation and cracking. Internally these manifolds have a larger than stock 1 5/8-inch cross-sectional area and 2 1/2-inch outlets for better air flow and improved performance. Offered for both rectangular or raised D-port heads, these manifolds fit many popular GM applications including standard straight, Vortec straight and angled plug head designs. Finishes include natural, silver, black, and titanium ceramic. Gaskets and hardware are included, along with weld-on flanges to aid in downpipe installation.

Features:

  • A smoother, cleaner appearance compared to stock exhaust manifolds, while maintaining a OEM style look and feel
  • Made from high silicon-molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking
  • Designed with a larger 1 5/8” cross-sectional area and 2 ½” outlets for better air flow and increased performance
  • Available for either rectangular port or raised D-port heads
  • Accommodates standard straight, Vortec straight and angled plug head designs for better application coverage
  • Includes weld-on flanges for easier downpipe pipe installation (custom downpipe required)
  • Available in natural cast iron or ceramic coated finishes (silver, black and titanium)
  • Includes mounting hardware and gaskets for inlet and outlet flanges

Specs

BrandHooker
CARB (California) CompliantNo
Collector Diameter2.5 inch
Emission Code3
EngineChevrolet Small Block Gen I
Exhaust Port ShapeD-Port
Header FinishSilver Ceramic
Header StyleManifold
MaterialCast Iron
Primary Tube Diameter (in)1-5/8 inch
Product TypeManifold
UPC090127100738
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 RequiredYes
Part Number8527-1HKR

Emissions

3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

These manifolds do not fit 1st generation F-Body cars. These cast exhaust manifolds have been designed to fit into a wide variety of replacement and engine-swap applications, with final outlet connections to be fabricated by the installer. The manifolds will not directly bolt onto factory downpipes.

Applications

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    Some parts are not legal for use in California or other states with similar regulations.

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