Sanderson Headers C56AP-SEC Small Block Chevy Full Length

Sanderson Headers C56AP-SEC The C56 header features full length, 1¾" diameter primary tubes and a 3.0" collector for performance engines in 1955-57 Chevy applications, and provides good ground clearance.

The C56-SEC clears both manual and the GM 605 power steering gears. Works with automatic or manual transmissions 

1. Will fit straight plug, angle plug, and D-Port cylinder heads.
   
   
2. Works with GM HO and ZZ4 crate engines
   
   
3. Can be ordered to fit any GM or aftermarket cylinder heads (except Brodix Speed Ports)

Comes with all hardware necessary for installation.

SPECIFICATIONS:

Engine : Small Block Chevy 265-400

Primary Tube Diameter : 1¾"

Collector Diameter : 3"

Weight : 25 LBS / 11.34 KGS

 

FEATURES:

1. Will fit straight plug, angle plug, and D-Port cylinder heads.
   
   
2. Works with GM HO and ZZ4 crate engines
   
   
3. Can be ordered to fit any GM or aftermarket cylinder heads (except Brodix Speed Ports)

Made in the USA

 

INCLUDES: 

Header Bolt Set

Collector Reducer Set

 

What is a D-Port?

We often see confusion in what is considered a D-Port cylinder head for small block Chevrolet engine applications. The problem originates in the technical understanding of what constitutes a true D-PORT versus a D-shape. The D-Port roof extends well above the centerline of the exhaust port, whereas the D-shaped port fits nicely inside what is deemed a standard port dimension. As shown in the graphic below, the d-shape easily fits within the common round or square port flange opening.

Where other header manufacturers use a typical flat header flange and gasket for sealing, the patented raised flange design of the Sanderson Headers requires different flanges for different small block Chevy exhaust port shapes. Other header flanges will often block the top of the exhaust port on D-port heads. When using a Sanderson D-Port flange the port is not blocked. However, using the wrong flange with a Sanderson header may expose open areas that will not seal, creating an exhaust leak.

Examples:

1. Using a D-port flange on a common GM head (standard round, square, or D-shaped port), the header port flange open is larger (taller opening) than the sealing area around the exhaust port (additional details below, comparing two BRODIX Track 1® cylinder heads)
2. Using a standard Sanderson header flange on a D-port cylinder head has a similar problem, where the cylinder head exhaust port opening may extend above the raised flange sealing area, again creating the possibility of an exhaust leak.

Here is an example of a small block Chevrolet D-port cylinder head that requires the Sanderson D-Port header flange.

NOTES:

These headers are NOT emissions legal on pollution-controlled motor vehicles. It is the purchaser's responsibility to verify local regulations for compliance.

Wrapping your Sanderson Headers with ANY thermal tape voids your header warranty. The best thermal protection for your headers is our Aluminized Ceramic Coating that is available for every Sanderson Header.

Turnout tip, Finned Blockoff Plate, and Under Chassis adapters sold separately

If your engine is making pretty good horsepower - please call to add PowerCaps to your order.

 

WARRANTY:

Limited 5-Year 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.