The exhaust manifolds found on the 1967-1972 Big Block Chevy engines were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 Long Tube off-road headers are designed to allow the exhaust gasses to flow more freely from each cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 396, 402, 427 and 454 engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
Specifics and Features:
Made of high quality T-304 stainless steel material
TIG welded CNC machine flange
O2 sensor bung insertion; Metal gasket included
Inlet / Outlet: 2" x 3.39"
2 x 3-1 Racing design
Increase high flow air, instantly gain 10 to 15 Hp. / Tq.
100% Brand New
Professional Installation is Highly Recommended
Installation Instruction is NOT Included
1 x Header Exhaust System
Hardware as Shown in the Picture above
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If you have any problem, please do not hesitate to contact us.Shipment Note:
If your package shipped by Express Delivery, please give us a valid delivery phone number, and also a full and accurate shipping address.How to Buy from Turbo-Racing Team Limited?
To ensure satisfaction at all times, our customer service team provides comprehensive after sales support.
With years of experience maintaining and servicing automated materials handling systems for some of the world’s leading organisations, we can confidently claim that Exmac’s after sales support is totally focused and second to none.
A concise Operating & Maintenance Manual is provided on completion of every project, to assist operators and maintenance personnel in the day-to-day use and care of the system.
A 12 month warranty is offered as standard on all systems and equipment supplied. Extended warranty agreements are available on request.
Exmac Automation’s priority is to resolve issues as quickly as possible when a request for assistance or parts is received. Response is immediate, and with the ability to call on a wealth of experienced engineers and a vast stock of standard component parts, we are able to provide a first class after sales service.
A variety of maintenance contracts and operator and maintenance training programmes, and a 24/7 telephone hotline and call-out facility, are also available.
The accessibility and availability of our after sales department to provide assistance, guidance and advice embodies our aim to develop a close and continuing relationship with customers through constant communication.
- Service contract example
- Customer T&S
- Customer Feedback
- Exmac service agreement levels offered (levels 1 2 & 3)
- 24 hours service
- Free audit to all new service contract customers
- Spare parts