Hooker 2457HKR exhaust header for the 1965-1969 Chevrolet Impala V8 6.5L, the 1966-1969 Impala V8 7.0L, the 1970 Impala V8 7.4L and other vehicles routes exhaust from each port through tuned-length primary tubes into a long transition collector. This Hooker exhaust header is a long-tube design with a black, heat-cured paint finish.
- Hooker Competition series long-tube header
- Tuned-length primary tubes, 2 in. x 27 in., for exhaust scavenging and velocity
- Mandrel-bent 16-gauge mild steel tubing for consistent tube diameter and smooth exhaust flow
- Long transition collector, 3.5 in. x 10 in., for decreased back pressure
- Machined flanges that seal against each exhaust port
- Header design that works with factory power steering, power brakes and air conditioning
Quick facts
- Part: Hooker 2457HKR exhaust header
- Fits: the 1965-1969 Chevrolet Impala V8 6.5L, the 1966-1969 Impala V8 7.0L, the 1970 Impala V8 7.4L and other vehicles
- Material: Mild steel
- Condition: New
A cracked tube, a burned or rusted flange or a ticking noise on a cold start can mean a header needs replacing. A leaking gasket or a loose bolt makes a similar noise, so these signs alone do not prove the header is at fault.
Fits
The vehicles it fits include the 1967-1969 Chevrolet Camaro V8 6.5L, the 1969 Camaro V8 7.0L, the 1965-1969 Chevrolet Biscayne V8 6.5L, the 1966-1969 Biscayne V8 7.0L and the 1970-1971 Biscayne V8 7.4L. If your Chevrolet is not named here, look up its year and engine in the "Vehicles it fits" section. The header is sold as a pair.
Specifications
Fit and size
- Primary tube: 2.000 in. diameter, 27 in. long
- Collector: 3.500 in. diameter, 10 in. long
- Port shape: same as port
- Tube direction: down swept
- Bolt size: 3/8-16 x 3/4 IN
- Quantity: sold as a pair
Build and materials
- Type: long-tube header
- Material: mild steel, 16 gauge tube wall
- Finish: black paint
- CARB (California) compliant: for pre-1975 vehicles only
- Condition: new
- Country of origin: China
In the box
The pair of exhaust headers with the bolts and hardware needed for installation. A collector reducer is not included.
Frequently Asked Questions
Are these Camaro exhaust headers right for the 1967-1969 Chevrolet Camaro V8 6.5L and the 1969 Camaro V8 7.0L?
Yes. Hooker 2457HKR fits the 1967-1969 Chevrolet Camaro V8 6.5L and the 1969 Camaro V8 7.0L. For any other car, look it up in the "Vehicles it fits" section.
Do these Hooker exhaust headers come with bolts?
Yes. Hooker 2457HKR comes with the bolts and hardware needed for installation; the bolt size is 3/8-16 x 3/4 IN. A collector reducer is not included.
What tube and collector size does this Hooker Competition exhaust header have?
The primary tubes are 2 in. in diameter and 27 in. long. The collector is 3.5 in. in diameter and 10 in. long.
How can I tell if an exhaust header is cracked or leaking?
With the engine off and cool, look for cracks in the tubes or collector, burned or rusted flanges and soot streaks at the ports. These can mean a leak; a shop can confirm it.
Are these Chevy Impala exhaust headers right for the 1970 Chevrolet Impala V8 7.4L?
Yes. The Hooker 2457HKR exhaust header fits the 1970 Chevrolet Impala V8 7.4L. It is sold as a pair.
