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3:1 Headers with Y-pipes
Big 10 Chassis or Heavy Half
0L 2/4 wd 5
HEADER FLANGE GASKET GM 396-454 BIG BLOCK SET OF 2 FITS HEADER NUMBERS THY-303Y-C AND THY-303Y-S-C
#: PRE 1975
THY-328-C / Sandrail Rear Exit LS Motors 4.8L-6.2L Exhaust Systems 3:1 Headers with Y-pipesMid Length Headers Straight Back Exit with Flanges Sandrail applications, 4. 8L 6. 2L LS Motors Header Style: 4: 1 Mid Length Header Material: Steel Finish: Silver Ceramic Coated Weld Up: No Primary Tube Diameter (in): 1 3 4" Primary Tube Gauge: 14 Gauge Collector Attachment: 3 bolt Flange Collector Diameter: 3" Tuned: No Flange Thickness: 3 8" Bolts and or Studs Included: No Gaskets Included: No Adapters Reducers Included: No Catalytic Converter(s)
