If you have a ZZ4 crate motor or are using LT-1-style D-port heads in your street rod, these tight-fit headers are for you. The tight-fit design fits in a wide variety of applications, and the headers have built-in OEM-style donut seals on the collectors so no gaskets or collector reducers are needed.
These headers have an attractive Armor Hot Coating, but are also available in bare steel. Header bolts and flange gaskets supplied.
D-Port Tight-Fit Small Block Chevy Header Chart
- Compact design
- 3/8” thick flanges
- 16-gauge tubing
- OEM-style exhaust pipe connection
- Durable and attractive Armor Hot Coating
These tight-fit small-block Chevy headers are made by Patriot and designed for D-port heads like those found on ZZ4 crate engines and ’92-and-later LT1 and LT4 V8s. They will not fit LS1 or LS6 engines. The compact design will fit a wide variety of early street rod and other applications.
- ZZ4 Crate engines
- 1992 and later LT-1 & LT-4 engines
- Will not fit 1955-1957 Chevys, Camaros, Chevelles or other cars with wide chassis crossmembers under the engines
Armor Hot Coating (AHC) is a heat resistant, ceramic coating applied to the outside of the header. This coating will reflect heat, which helps retain more heat within the header tube while simultaneously speeding up the exhaust flow. Not only will this coating help you make more horsepower, it also keeps your headers rust-free, looking great, and lasting longer (when properly maintained). If you are looking for a show-quality finish for your headers, this is it! Our AHC will withstand exhaust temperatures of up to 1300˚ F.
- 1-5/8” primary tubes
- 2-1/2” collectors
- 3/8” thick flanges
AHC coated headers will burn and be damaged at exhaust temperatures above 1300 degrees. An excessively lean fuel mixture can generate exhaust temperatures over 1700-1900 degrees. If the coating is burned (which will look like a dull gray) due to a lean condition, it is not warrantied, but the headers can be recoated.
Not legal for sale or use in California on pollution controlled motor vehicles.
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