Tight-Fit Small Block Chevy Block Hugger Headers & Extention Kit

Headers

These small block Chevy tight-fit headers are the most universal steel tube shorty headers available. They even fit difficult applications where space is limited. The block hugger headers are a favorite for street rods, as well as many 1950s and 1960s cars and vintage trucks.

• Most tight fit header applications require the use of Accel shorty spark plugs
• Compact design
• Will NOT fit angle plug heads
• Includes reducers, gaskets and bolts
• 1-5/8" primary tubes
• 2-1/2" collector
• Head Flange Thickness: 0.35"

Extensions

Using this kit makes the hook-up of your exhaust system a snap! The 2-1/2" diameter, 16-gauge, mandrel-bent tubes curve back at a 90° angle and are offset outward to clear the bellhousing and starter. They drop 10-1/2" from the header flange and they extend backward 17-1/2" after the 90 degree bend.

Just trim the length, weld on the 9/32" thick collector flange (included, with gaskets) and you're all set! Works great with any tight-fit headers.

1. Can be used with most oil filter systems and transmission/starter combinations.
2. Will not fit '55-'57 Chevy cars, Camaros, or other modern vehicles which have a crossmember below the engine's center two exhaust ports.
3. Will not clear a "clam shell" style motor mount (found on 1973-newer Chevy cars & trucks).
4. Will not clear angle plug heads.

Header Dimensions (JPG)

Header Dimension Explanation Chart (GIF)