Skip to main content
Iconic Heritage - 10% Off Thousands of products
Motor Life Events Community Support
1
Images
Flowtech Exhaust

Flowtech Block Hugger - Painted

Part # 11030FLT Be the first to write a review

Universal Block Hugger Header: BBC 396-454, Tube Size 1.75", Collector Size 2.5",

Flowtech Block Hugger - Painted

In Stock
Free Shipping - Lower 48 US States
$331.95
Add to Wishlist

4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
FLOWTECH Block Hugger headers are ideal for hot rods where fit and finish is really important. Block Huggers make performance and style easy for engine swaps, and with our new Hugger Toobs you can hook up to an existing exhaust system with ease.

Features:

  • Computer-controlled mandrel-bent tubing for smooth exhaust flow
  • Sturdy 16 gauge tubing
  • Tight-tuck design for narrow frame rails
  • Easy installation - can be used with stock motor mounts
  • Precision die-cut exhaust port flanges
  • Engineered and tested for a leak-proof seal
  • All necessary hardware included for a complete installation

About Flowtech Exhaust

Flowtech provides high-quality performance exhaust systems at a great value. Explore our lineup of headers, mufflers, and exhaust systems at our official retailer, Holley.com!​

Air Injection TubesNo
Bolt Size3/8-16 x 3/4 IN
Bolts IncludedYes
Brand Flowtech Exhaust
California Proposition 65Yes
CARB (California) CompliantNo
Catalytic Converter Quantity0
CategoryExhaust
Collector Attachment3-Bolt Flange
Collector Diameter2.50 IN
Collector Port Diameter2.50 IN
Collector Reducer IncludedYes
Collector Reducer Outlet Diameter2.30 IN
ColorBlack
DesignBlock Hugger
Drive2WD
4WD
EGT PortNo
Emission Code4
EngineGM Big Block
FinishPainted
Flange Thickness0.3125 IN
5/16 IN
Gasket Or Seal IncludedYes
Grade TypePerformance
Header SeriesStreet Rod
Header StyleBlock Hugger
MaterialMild Steel
Mounting Hardware IncludedYes
Oxygen Sensor PortNo
Part TypeExhaust Header
Port ShapeRound
Primary Tubing Diameter1 3/4 IN
1.75 IN
Product TypeHeaders
QuantitySold as a Pair
Sheen LevelSatin
Sub CategoryExhaust Manifolds
Tube Wall Thickness16 GU
UPC787480110305
Part Number11030FLT
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Instructions - 11030-3901fltrev1.pdf
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech services at 270-781-9741 for additional information regarding ceramic exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Reviews

    Your Review

    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Flowtech Block Hugger - Painted
    Flowtech Block Hugger - Painted
    $331.95