Product Summary

Block Hugger Header Tube Type, Standard Flange Style

  • Engineered to fit in the tightest of engine compartments and clear most stock motor mounts
  • Manufactured from durable 16-gauge tubing with a black finish for added protection
  • Kit comes with all the necessary gaskets, header bolts and collector reducers need for the install
  • Primaries have a 1-5/8" diameter and go into a 2-1/2" collector
  • Specifically designed for 401 and 425 Nailhead Buick engines
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Key Specs

MFG. Part #H8500-B
Header Tube TypeBlock Hugger
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
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Need To Know

Quick and Easy Returns

Return Policy

Patriot Exhaust H8500-B Details

Tight Tuck headers are the solution to many problems associated with engine swaps in modern street rods. Tight Tucks fit in the tightest of engine compartments and clear most stock motor mounts. Most headers are manufactured from durable 16-gauge tubing and comes complete with gaskets, header bolts and collector reducers (excluding part # H8019 & H8090). Most Tight Tuck headers are available in three finishes; raw steel for individual customizing, Hi-Temp Black Coated or with Patriot's very popular metallic ceramic coating.

  • Tight Tucks fit in the tightest of engine compartments and clear most stock motor mounts.
  • Durable 16-gauge tubing
  • Comes complete with gaskets, header bolts and collector reducers. (excluding part # H8019 & H8090).
  • Most Tight Tuck headers are available in three finishes; raw steel for individual customizing, Hi-Temp Black Coatedor with Patriot's very popular metallic ceramic coating.
  • Show quality chrome finish is also available on selected applications.
  • 401 & 425 Nailhead Buick Engine application
  • Patriot Exhaust H8500-B 1 5/8" Tight Tuck Header Street Rod Universal Buick Nail Head Hi-Temp Black Coating
  • Patriot Exhaust H8500-B 1 5/8" Tight Tuck Header Street Rod Universal Buick Nail Head Hi-Temp Black Coating

Application

401-425 Buick Nailhead

CARB Warning

For use on pre-1966 vehicles only

Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Patriot Exhaust H8500-B Specifications

KEY SPECS
MFG. Part #H8500-B
BrandPatriot Exhaust
Header Tube TypeBlock Hugger
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
ColorBlack
Weld-UpNo
Collector Diameter2-1/2 Inch
FinishHi-Temp Black
Hardware IncludedYes
Gasket(s) IncludedYes
GENERAL
Sold in QuantityPair
GTIN Code694342543846

Questions & Answers

1 Question • 1 Answer

Hi there why do you think that the 401 buick block hugger headers (part #h8500-b) may not fit a 1960 buick Invicta? kind regards scott @ magoo auto Invercargill, new zealand

by magoo

• 8 years ago

1 answer

1 of 1 questions shown

Fitment

  • 401 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 401 Buick Nailhead V8

  • 425 Buick Nailhead V8

Customer Impersonation Script