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FlowtechPart 11551FLTMade in CN
Product Details
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Key Features
Big Block Chevy 2-1/4" Upright Headers with 4" Collector- Natural Finish
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
Big Block Chevy 2-1/4" Upright Headers with 4" Collector- Natural Finish
- CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
- Heavy duty 16-gauge 409SS tubing for increased strength and durability
- 2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
- Extended 4” collector for maximum strength and exhaust flow
- Extra thick 7/16” header flange for a leak-free seal and maximum strength
- Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
- Center of exhaust port to end of collector length is 33-1/2"
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About this product
Big Block Chevy 2-1/4" Upright Headers with 4" Collector- Natural Finish
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Product Specifications
Air Injection Tubes
No
Application
Big Block Chevy
Automotive Item Grade
Performance
Bolt Size
3/8-16 x 3/4
Bolts Included
Yes
Brand
Flowtech Exhaust
California Proposition 65 Chemical Name
1
California Proposition 65 Required
Yes
California Proposition 65
Yes
CARB (California) Compliant
No
Catalytic Converter Quantity
0
Category
Exhaust
Collector Attachment
Weld-On
Collector Diameter
4.00
Collector Port Diameter
2.25
Collector Reducer Included
No
Color
Silver
Design
Upright
Drive
2WD
Drive
4WD
EGT Port
No
Emission Code
4
Finish
Natural
Flange Thickness
0.4375
Flange Thickness
7/16
Gasket Or Seal Included
Yes
Header Series
Flowtech
Header Style
Upright
Material
409 Stainless Steel
Mounting Hardware Included
Yes
Oxygen Sensor Port
No
Part Type
Exhaust Header
Port Shape
Round
Primary Tubing Diameter
2 1/4
Primary Tubing Diameter
2.25
Product Type
Headers
Prop 65 Yes/No
Yes
Quantity
Sold as a Pair
Sheen Level
Semi-Gloss
Sub Category
Exhaust Manifolds
Tube Wall Thickness
16
Warning
California Proposition 65
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Warranty & Compliance
Warranty
Manufacturer's Limited 90 Day Warranty
Country of Origin
CN
⚠ Prop 65 Warning
Yes
1
Emissions Code
4
HS Code
8708925000
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Dimensions & Shipping
Product Dimensions
37.3 × 18.0 × 17.8 in
Shipping Dimensions
37.3 × 18.0 × 17.8 in
Weight
18393 g (18.39 kg)