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FlowTech Exhaust 11506FLT Long Tube Header - Black Painted Steel

(Chevrolet Blazer 1969-91, K10 Pickup 1967-74, K10 1967-86, K5 Blazer 1975-86, K20 1975-86, K30 1977-86, K20 Pickup 1967-74, K30 Pickup 1968-74 + 34 more models)

Part of: FlowTech Exhaust Long Tube Headers

Other options in this family: FlowTech Exhaust 12540FLT FlowTech Exhaust 11500FLT FlowTech Exhaust 11100FLT FlowTech Exhaust 11150FLT FlowTech Exhaust 11130FLT

Manufacturer

Picture for manufacturer FlowTech Exhaust

Part Number

11506FLT
5 reviews
Sale Price

$265.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The FlowTech Exhaust 11506FLT Long Tube Header delivers improved exhaust flow and performance for your engine upgrade. Featuring mandrel-formed construction and a power plenum design, this header maximizes exhaust scavenging to unlock horsepower and torque gains while potentially improving fuel economy.

Key Features:

  • Constructed from .049-inch thick cold-rolled mild steel tubing for durability
  • Mandrel-bent primary tubes maintain consistent diameter for optimal exhaust flow
  • Power plenum collector design enhances exhaust scavenging efficiency
  • Leakproof O-ring port seals ensure proper sealing at cylinder head connection
  • Black painted finish provides corrosion resistance and clean appearance
  • Leak tested at the factory to guarantee maximum performance
  • Includes all necessary mounting hardware for installation
  • Precision engineered for proper fitment and performance

This long tube header design extends the primary tubes further than shorty headers, resulting in improved exhaust scavenging and power gains across a broader RPM range. The black paint finish helps protect against corrosion while maintaining a clean under-hood appearance.

Products specifications

Fits

Chevrolet Blazer 1969-91, K10 Pickup 1967-74, K10 1967-86, K5 Blazer 1975-86, K20 1975-86, K30 1977-86, K20 Pickup 1967-74, K30 Pickup 1968-74, V30 1987, K20 Suburban 1967-86, V20 1987, V10 1987, K10 Suburban 1967-86 + 29 more models

Bolt Size

3/8-16 x 3/4

Brand

Flowtech Exhaust

CARB (California) Compliant

No

Category

Exhaust

Collector Attachment

3-bolt flange

Color

Black

Design

Long Tube

EGT Port

No

Emission Code

4

Engine

Chevrolet Small Block Gen I

Finish

Painted

FLANGE Thickness

5/16"

FLANGE Thickness

0.3125

Grade Type

Performance

Header Finish

Black Paint

Header Style

Long Tube

Material

Mild Steel

Oxygen Sensor Port

No

Part Type

Exhaust Header

Primary Tube Dia.

1-5/8 inch

Product Type

Headers

Sheen Level

Satin

Sub Category

Exhaust Manifolds

Tube Material

Mild Steel

Warning

California Proposition 65

No estimate on when the part will be shipped.

Great price! Quick shipping. The intake I ordered was $20.00 cheaper than anywhere else I looked. Item was instock and shipped quick. Will order from Autoplicity again!

Great Seller. Fast Shipping and great prices!

I got a great price and very fast delivery. I will definately come back and refer Autoplicity to my friends.

I bought a Motive pressure brake bleeder from Autoplicity. I have been looking around for different prices for quite a while, and their price, even with shipping cost, was the lowest. After ordering, I received a notification of shipment and tracking number. The item arrived well packaged, complete, and intact within a few days. I am looking forward to using it.

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