BLOCK HUGGER Hedders; Chevy LS Series; 1-1/2" Tubes; Uncoated
The compact, low profile design of Hedman's Block Hugger Headers is ideal for factory manifold replacement, or engine swap projects that do not have a header designed specifically for the applications. All Hedman street Hedders are MADE IN THE USA, and are backed by a lifetime warranty against manufacturing defects! HTC coated stainless models also available.

Application Summary:

Year Make/Model
STREET ROD CHEVROLET 283 1923 to 1949
Additional Details Also Fits Vortec Engines
Application Automotive
Automatic Transmission - Column Yes
Automatic Transmission - Floor Yes
Bolts/Studs Included Yes
California Proposition 65 WARNING: Cancer. For more info visit
Catalytic Converter(s) Included NO
Coating/Finish Silver Ceramic
Collector Attachment 2-1/2"
Collector Bolts Included Yes
Collector Size 2-1/2"
Collector Style 3-Bolt Gasket Style Flange
Collector Tube Size (in.) 3
Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
Country of Origin (Primary) US
Crossover Pipe Included NO
Cylinder Head Stock Profile Heads
Cylinder Head Port Shape Round
Emission Code Not in CA
Emissions Notes NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only.
Engine Chevy LS Series
Engine Make/Size Chevy Big Block (396-454)
Exhaust System Dia 2-1/2"
FLANGE Thickness 0.375"
Finish Uncoated
Finish Type Uncoated Mild steel
Flange Style Standard
GTIN 00732611685207
Gasket # 27470
Gasket Or Seal Included Yes
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Head Flange Gasket 27470
Header Finish Uncoated
Header Material Mild Steel
Header Port Shape Round
Header Style Block Huggers- Street Rod
Installation Hardware Included Yes
Life Cycle Status Code Available to Order
Manual Transmission - Column Yes
Manual Transmission - Floor Yes
Material Mild Steel
Motor Mounts (Included) NO
Motor Mounts Included NO
Mounting Hardware Included Yes
NAFTA Preference Criterion Code B
Notes Street Rod Universal Shorty Chev. 4.8-6.0 LS
Package Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
Port Shape Round
Primary Tube Diameter (in) 1.75"
Primary Tube Gauge 18g
Quantity Sold as a pair.
Reducer Outlet Size 2-1/2"
Reducers Included Yes
Replacement Gasket 27470
Replacement Head Flange Gasket 27470
SDR Required Flag N
Transmission Mount Included NO
Transmission Mount/Crossmember (Included) No
Transmission Mount/Crossmember Included No
Transmission Notes Modification to shifter linkage may be required.
Tube Diameter 1-1/2"
Tube Direction Down Swept
Tube Length SHORT Tubes
Tube Material Thickness 18g
Tube Size 1-1/2"
Tube Style Block Huggers
Tuned NO
Variations 68526
Weld-Up No
Y-Pipe Included No
with A.I.R. No
with A.I.R. System No
with EGR No

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Hedman Hedders 68520 BLOCK HUGGERS; Chevy LS Series; 1-1/2" Tubes; Uncoated

Product Information

  • Brand: Hedman
  • Product Number: 68520
  • $303.15

The AAM Group™ Proposition 65
Proposition 65 warning graphic Cancer. For more info visit