Competition Headers 265-400 Chevy Small Block V8

Name: Competition Headers 265-400 Chevy Small Block V8
Brand: HOOKER HEADERS
SKU: 520-2453-4
Price: 711.99 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Chevy/GMC Truck & Van Chevy Small Block

265-400 Chevy Small Block V8
1969-91 Blazer, Suburban, Jimmy, Yukon 2DR 4WD
1963-87 1/2, 3/4, & 1 Ton Truck 4WD
1.625'' x 27'' Primary Tubes
2.5'' x 8'' Collector
Titanium Ceramic Coated

Footnotes:
Will not fit angle plug heads.
Applications with oxygen sensors use reducers 555-30010 for 2-1/2' three bolt flange.
Looking for a high performance finish to your Custom dual exhaust? Use Hooker dual pipe kits:
For 69-72 Blazer, Jimmy, Yukon 4WD - 520-16527
For 73-91 Blazer, Jimmy, Yukon 4WD - 520-16528
For 73-87 1/2, 3/4 & 1 Ton Trucks 4WD - 520-16526

Accessory Compatibility:
Power Steering - Yes
Power Brakes - Yes
Air Conditioning - Yes
Smog Pump - Requires Modifications
Alternator/Generator - Yes, engines with alternator/generator mounted on the cylinder head require additional brackets:
Driver side mount will require 520-10927 and 520-10928
Passgr side mount will require 520-10922 and 520-10928

Transmission Compatibility:
Manual Column Shifter - Yes
Manual Floor Shifter - Yes
Automatic Column Shifter - Yes
Automatic Floor Shifter - No

Included Items Note: Bolts and Gaskets Included, Reducers required

Port Shape: SAP

Emissions Compatibility: Not Street Legal Except Pre-1974

All Budget Headers are NOT Created Equally!
Hooker's Competition Series Headers come in your choice of finishes and are engineered to perform at a reasonable price! To let your engine really breath Hooker utilized 16 gauge (.049'' thick) steel tubing attached to long transition style collectors! Giving you a serious increase in flow over other brand headers without a loss in the backpressure most engines need to perform! After years of testing, Hooker has discovered that a machined 5/16'' header flange offers enough flex to hold the gasket tight to each exhaust port, and enough rigidity to keep everything properly tied together.

Features:

Mandrel-bent tuned-length tubing for smooth exhaust flow and power
Sturdy 16 gauge steel tubing
Perfect seal 5/16'' machined header flanges
Long transition collector for improved power over standard headers
Comes with gaskets and bolts Reducers sold separately.
Available in five finishes to suit your needs (see listings below for product availability) -

Black Painted (Part numbers do not have a suffix)

Metallic Ceramic Coating (Part numbers have a -1 suffix)

Stainless Steel (Part numbers have a -2 suffix)

"Darksides" Black Ceramic Coating (Part numbers have a -3 suffix)

Titanium Ceramic Coating (Part numbers have a -4 suffix)