Sanderson Headers BNHLF401-P Limefire Buick Nailhead Header Set

Sanderson Headers BNHLF401-P The BNHLF401-P Limefire header set for the Buick Nailhead offers the classic lakes style that looks just right on many fenderless street rods; whether building for that nostalgic look or an ultra-modern design.

NOTE Images provided show Limefire header sets for a variety of engine applications.

NOTES:

1. Turnout Tip, Finned Block Off Plate, and other adapters are sold separately
2. On engines making decent horsepower or vehicles doing considerable highway driving, adding PowerCaps to the Limefire is recommended! Please review the “Why use PowerCaps?” tab for additional information.

SPECIFICATIONS:

• Engine: Buick 364-425 "Nailhead" V8
Primary Tube Diameter: 1-7/8″ Collector Diameter: 3½"

FEATURES:

• 16-Gauge Primary and Collector Tube Thickness
• 3/8″ Thick Flange
• Patented Flange Design Requires NO Gaskets
• Tightest Fitting Header Available Anywhere!
• Made in the USA

INCLUDES:

• Header Bolt Set
• Standard block off plate

FINISH:

Our Ceramic Coating is recommended for every vehicle application and is the default finish selection choice above. To meet high standards of quality, We apply a multi-layer inside and outside aluminized ceramic coating in-house and then polish the coating to a high luster. This aerospace and military-grade technology adds excellent protection to your headers while offering the benefit of thermal control in your engine bay. It also improves cylinder scavenging of exhaust gases and increases the longevity of your header investment.

WHY USE POWERCAPS?

For those looking at the Sanderson Lakes-style Limefire and Jayster outside chassis headers for their street rod, here is a tech tip that might save some grief, frustration, and possible damage to the headers!

You may already know that the Sanderson lakes-style headers are available with or without connections for an under-chassis exhaust system. The ability to have a throaty open exhaust or a quiet and capped lakes-style header using an under-chassis system has been something Sanderson has offered since the original design.

We have found that on stock or mild street rod engines, there is not much of an issue if following the normal installation instructions. However, on applications making decent horsepower, it is possible to damage the header or header coating near the end of the collector where the under-chassis adapter connection is located. The cause of this problem is the turbulence created by the limited distance of dead space just after the under-chassis connection and the end cap on the header (when the header is capped and exhaust gasses are being routed through an under-chassis exhaust system). The turbulence in this area causes the EGT’s (Exhaust Gas Temperatures) to rise dramatically, and in certain applications, this could cause the temperatures to exceed the thermal capacity of the header coating—causing finish damage and discoloration. The problem only seems to occur on high-power engines and engines that are regularly operating at higher RPMs—for example, considerable highway driving on lower-geared vehicles.

The solution is relatively simple but adds cost to the header purchase. Sanderson designed a component called the “PowerCap” to solve this issue. The PowerCap slides into the collector tube and provides a smooth redirection of exhaust gas flow from the collector tube into the under-chassis exhaust tubing. The PowerCap bolts securely into your header using the end cap flange, thereby removing the turbulence area in the collector horn. Another benefit of using the PowerCaps is improved horsepower by improving airflow into the under-chassis exhaust. Although the PowerCaps are recommended for higher horsepower applications, they also benefit all applications using the under-chassis exhaust connection.

PowerCaps capture hidden horsepower on applications using under-chassis exhaust connections. Under-chassis adapters allow you to run a quieter under-chassis exhaust system, and adding the PowerCaps increases power and extends the life of your headers.

WARRANTY:

Sanderson Street Rod Headers strives to supply our customers with the highest quality parts and service available in the street rod industry. In keeping with this, we warrant and will repair or replace, at our option after inspection in our facility, any of our products which are found by us to have failed due to defects in either material or workmanship.  This warranty is activated by the return of the Warranty Card enclosed with every pair of headers, and is effective for FIVE YEARS *from the date of purchase as indicated on the original invoice.

This Warranty does not cover products that fail due to improper motor tuning, alteration, disassembly, or damage caused by racing, misuse, neglect, abuse, improper installation and/or accident, or when used on applications for which they were not designed or approved. We are specifically not responsible for the costs of removal, installation, transportation, destruction of other components, inconvenience, loss of time, or other personal damages, or for any other associated costs including the application of aftermarket coatings applied by others. Sanderson Street Rod headers shall not be liable for any and all consequential damages occasioned by the breach of any written or implied warranty pertaining to this sale in excess of the purchase price of the product(s) as found on the original invoice.

WRAPPING HEADERS WITH THERMAL TAPE VOIDS WARRANTY.

 Extremely compact header designs which locate the collector in close proximity to the exhaust ports are very sensitive to engine tuning. Improper air/fuel mix or timing of ignition and/or valvetrain can cause early failure due to excessive heat. For this reason, part numbers CC2 and CC3 are offered with a two-year Warranty period only. All other Warranty conditions apply..

DIMENSIONS:

When sitting in driver's seat and engine in front of you, the LEFT header would be the Driver's Side on LH drive vehicles; coincidently, means the RIGHT header is on the passenger side. See the detail image above left that describes engine sides.

NOTE: Image graphic is generic and not exact representation of product.