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25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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25% Off Select Parts and Accessories
Receive 25% Off Your Online or In-Store Purchase. Use promotional code MMJ25 at checkout to receive discount. Not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included will be displayed in product search results and product detail pages. INCLUDES the following categories: Starters, Alternators, Fuel Pumps, Radiators, Shocks & Struts, Chassis, CV Axles, Batteries, Ignition, Window Motors, Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Headlamps and Bulbs. Excludes the following brands: Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner and BBK Performance. Valid online until 2:59 am EST on 5/1/17.

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  • Part #: 413|
  • SKU: 20056743


    • Fits 1958-86 Chevrolet small block 265-400 engines
    • Conforms to stock 1.625 inch diameter round ports
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Spectre Premium Exhaust Gaskets

These Spectre header gaskets fit 1958-86 small block Chevrolet 265-400 engines with 1.625 inch diameter round ports. This is a premium, 1/8 inch extra-thick header gasket set that conforms to warped header flanges to help stop header leaks. The gaskets are made from compressed ceramic fiber (CCF) which will not deteriorate or crack from excessive heat or pressure.
  • Fits 1958-86 Chevrolet small block 265-400 engines
  • Conforms to stock 1.625 inch diameter round ports
  • Made from compressed ceramic fiber (CCF) to withstand excessive heat or pressure
  • The 1/8 inch extra thickness helps stop header leaks on warped flanges

Product Box Height
0.5 in (13 mm)
0.5 lb (0.2 kg)
Package Contents
2 Gaskets
Package Quantity
Product Style
Spectre Gaskets
Product Box Length
23 in (584 mm)
0.125 in (3 mm)
Product Box Width
3.25 in (83 mm)
Gasket Material
Compressed Ceramic Fiber