Standard-Duty Black Coated, Long Tube Headers without A.I.R. For 1967-87 CHEVY/GMC 2WD & 4WD 1/2 to 1 Ton Pick-Up Truck, Blazer, SUV w/396-502 BB Chevy (Centered Engine Chassis Only); 1-3/4 in. Long Tubes; 3 in. Ball/Socket Collector
  • Handcrafted, Mild Steel Construction.
  • Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
  • Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
  • Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
  • Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
  • Proud To Say, Made In The USA, Since 1954!

Application Summary:

Year Make/Model
1973 Chevrolet Blazer
1976-1980 Chevrolet C20
1973-1974 Chevrolet C20 Pickup
1973-1974 Chevrolet C20 Suburban
1976-1980 Chevrolet C20 Suburban
1976-1980 Chevrolet C30
1973-1974 Chevrolet C30 Pickup
1976 Chevrolet K10
1980 Chevrolet K10
1974 Chevrolet K10 Pickup
1976-1978 Chevrolet K20
1973-1974 Chevrolet K20 Pickup
1973 Chevrolet K20 Suburban
1976-1978 Chevrolet K5 Blazer
1976-1978 GMC C15 Suburban
1973-1974 GMC C15/C1500 Suburban
1979-1980 GMC C1500 Suburban
1976-1978 GMC C25
1976-1978 GMC C25 Suburban
1973-1974 GMC C25/C2500 Pickup
1974 GMC C25/C2500 Suburban
1979-1980 GMC C2500
1979-1980 GMC C2500 Suburban
1976-1978 GMC C35
1973-1974 GMC C35/C3500 Pickup
1979-1980 GMC C3500
1976 GMC K15
1980 GMC K1500
1976-1978 GMC K25
1976-1977 GMC K25 Suburban
1973-1974 GMC K25/K2500 Pickup
Attributes
Air Conditioning Yes, Yes, Yes
Application Automotive
Automatic Transmission - Column Yes, Yes, Yes
Automatic Transmission - Floor Yes, Yes, Yes
Bolts/Studs Included Yes, Yes, Yes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Catalytic Converter(s) Included NO, No, No
Chassis Compatibility NOT For Vehicles With Offset (right) Engine Position!, NOT For Vehicles With Offset (right) Engine Position!
Clutch Notes Must use 1975 and later model clutch linkage located at rear of engine. (139), Must use 1975 and later model clutch linkage located at rear of engine. (139)
Coating/Finish Satin Black Ceramic
Collector Attachment 3", 3 in., 3 in.
Collector Bolts Included Yes, Yes, Yes
Collector Diameter 3 in., 3 in.
Collector Size 3", 3 in., 3 in.
Collector Style Ball and Socket Style (Gasketless), BALL and SOCKET Style (Gasketless), BALL and SOCKET Style (Gasketless)
Collector Tube Size (in.) 3
Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions, Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions, Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
Country of Origin (Primary) US
Crossover Pipe Included NO, No, No
Cylinder Head Stock Profile Heads, Stock Profile Heads, Stock Profile Heads
Cylinder Head Port Shape Round, Round, Round
E.O. # No, Yes, No
Emission Code Not in CA
Emissions Notes EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website), Not currently legal for sale or use in California. Please call for status update, Not currently legal for sale or use in California. Please call for status update
Engine Make/Size Chevy Big Block (396-502)
Exhaust System Dia 2-1/2", 2-1/2 in., 2-1/2 in.
Finish BLACK MAXX Satin Black Ceramic-Metallic, BLACK MAXX Satin Black Ceramic-Metallic
Finish Type BLACK MAXX- Black Ceramic-Metallic Coating, BLACK MAXX- Black Ceramic-Metallic Coating, BLACK MAXX- Black Ceramic-Metallic Coating
Flange Style Standard, Standard, Standard
Flange Thickness 0.25", 0.3125 in., 0.3125 in.
Gasket # 27530
Gasket Or Seal Included Yes, Yes, Yes
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Head Flange Gasket 27530
Header Construction Standard-Duty, MILD STEEL- Standard-Duty
Header Fasteners Included Yes, Yes
Header Finish BLACK MAXX Satin Black Ceramic-Metallic, BLACK MAXX Satin Black Ceramic-Metallic, BLACK MAXX Satin Black Ceramic-Metallic
Header Material Mild Steel, Mild Steel, Mild Steel
Header Port Shape Round, Round, Round
Header Style Long Tube, Long Tube
Installation Hardware Included Yes, Yes, Yes
Life Cycle Status Code Available to Order
Manual Transmission - Column No, No, No
Manual Transmission - Floor Yes, Yes, Yes
Material Mild Steel, Mild Steel
Motor Mounts (Included) NO, No
Motor Mounts Included NO, No, No
Mounting Hardware Included Yes, Yes, Yes
NAFTA Preference Criterion Code B
Notes 68-91 GM 1/2, 3/4, 1 Ton Truck/SUV 2-4WD 396-502, 68-91 GM 1/2, 3/4, 1 Ton Truck/SUV 2-4WD 396-502
Package Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Port Shape Round, Round, Round
Power Steering Yes, Yes, Yes
Primary Tube Diameter (in) 1.75", 1.75 in., 1.75 in.
Primary Tube Gauge 18g, 16g, 16g
Quantity Sold as a pair., Sold as a pair., Sold as a pair.
Reducer Outlet Size 2-1/2", 2-1/2 in., 2-1/2 in.
Reducers Included Yes, Yes, Yes
Replacement Gasket 27530, 27530, 27530
Replacement Head Flange Gasket 27530, 27530
SDR Required Flag N
Transmission Mount Included NO
Transmission Mount/Crossmember (Included) No, No
Transmission Mount/Crossmember Included No
Tube Design LONG TUBES, Standard
Tube Diameter 1-3/4 in., 1-3/4"
Tube Direction Down Swept
Tube Length Long Tubes, Long Tubes, Long Tubes
Tube Material Thickness 18g, 16g, 16g
Tube Size 1-3/4", 1-3/4 in., 1-3/4 in.
Tube Style Long Tubes, Long Tube, Long Tubes
Tuned NO, No, No
Variations 69117, 69827, 69117, 69827, 69117, 69827
Weld-Up No, No, No
with A.I.R. No
with A.I.R. System No, No, No
with EGR No, No, No
Y-Pipe Included No, No, No
GTIN 00732611631174

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