Tri-Y Headers for 58-64 Chevy 348-409 W Block 1-3/4in Primary D309Y-B
Tri-Y Headers for 58-64 Chevy 348-409 W Block 1-3/4in Primary D309Y-B is backordered and will ship as soon as it is back in stock.
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Fitment
Fitment
Warranty Information
Warranty Information
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Description
Description
Overview:
58-64 Chevy 348-409 Tri Y Black Ctd
Doug's is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency.
Features:
- 3/8" thick machined flanges to prevent warping
- CNC mandrel bent tubes ensure accurate fit and better flow
- Heavy 16-guage tubing for longer life
- Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating
Specs:
- Brand: Doug's Headers
- Collector Attachment: 3-Bolt Flange
- Collector Diameter: 2.5 IN
- Collector Port Diameter: 2.5 IN
- Color: Black
- Cylinder Head Port Shape: SAP
- Design: Tri-Y
- EGT Port: No
- Finish: Hi-Temp Black Coating
- Flange Thickness: 0.375 IN
- Gasket Or Seal Included: Yes
- Gaskets Included: Yes
- Grade Type: Performance
- Header Material: Steel
- Header Style: Tri-Y
- Material: Steel
- Mounting Hardware Included: Yes
- Oxygen Sensor Port: No
- Port Shape: SAP
- Primary Tube Outside Diameter: 1.75 IN
- Primary Tubing Diameter: 1.75 IN
- Prop 65 (C, R or CR): CR
- Prop 65 Yes/No: Yes
- Sheen Level: Matte
- Title: Doug's Tri Y Header 58-64 Chevy 348-409 W Block 1 3/4-2" Primary 2 1/2" Collector Black Hi Temp Coated D309Y-B
- Tube Wall Thickness: 16 GU
- Part Number: D309Y-B
Applications:
- 1958-1961 Chevrolet Biscayne 348 CID
- 1961-1964 Chevrolet Biscayne 409 CID
- 1958-1961 Chevrolet Bel Air 348 CID
- 1961-1964 Chevrolet Bel Air 409 CID
- 1959-1960 Chevrolet El Camino 348 CID
- 1958-1961 Chevrolet Impala 348 CID
- 1961-1964 Chevrolet Impala 409 CID
Emissions:
- This Product is considered а Replacement Part per CARB and EPA regulations for emissions compliance and is legal for sale and use on specified vehicles in all 50 states as stated in Manufacturer's Application Guide and lnstallation Instructions.
Instructions:
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