When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Price: $1192.80
These Tri-Y design headers yield maximum power from off idle to 4500 RPM making them well suited for applications demanding maximum mid-range torque with maximum fuel economy. Every header is tuned with the proper tube size and length to eff icientlyremove all the exhaust from each cylinder reducing pumping losses for dramatic gains in horsepower and torque. Dougs headers are carefully developed on the vehicles they are intended to fit and are checked and rechecked numerous times during t he design and manufacturing process. Once you check the heavy-duty 1/2 to 5/8 thick machined and finished header flanges the smooth mandrel bent tubes and the attention paid to assembly youll want Dougs
1958-64 Impala / Full Size Chevrolet 348 409 Doug'S Ceramic Coated Tri-Y Design Headers Product DetailsThese Tri-Y design headers yield maximum power from off idle to 4500 RPM making them well suited for applications demanding maximum mid-range torque with maximum fuel economy. Every header is tuned with the proper tube size and length to eff icientlyremove all the exhaust from each cylinder reducing pumping losses for dramatic gains in horsepower and torque. Dougs headers are carefully developed on the vehicles they are intended to fit and are checked and rechecked numerous times during t he design and manufacturing process. Once you check the heavy-duty 1/2 to 5/8 thick machined and finished header flanges the smooth mandrel bent tubes and the attention paid to assembly youll want Dougs.The Metallic Ceramic Thermal Barri er Coating (MCTBC) is simply the best header finish on the market and is the standard finish on all Dougs headers. MCTBC protects and extends the life of headers by creating a thermalbarrier that significantly lowers under hood temperatures while prot ecting substrate metal from thermal fatigue.Dougs finishes their headers with a vibratory finishing process that compresses and activates the coating significantly increasing surface hardness to produce a coating 60% more corrosion resistant than standard header coating. This coating is easy to maintain and will not change color under normal operating conditions.Dougs has made that commitment and their name has become synonymous with quality. Theres no compromise at Dougs. Each header set includes all the necessary mounting hardware collector reducers or connector pipes premium gaskets and detailed installation instruction sheets. Our extra thick gaskets are rated up to 1100°F and are designed for an exact port match with Dougs headers. Important: Be sure to read the important Application and Emission Notes listed below pertaining to ea ch header system for correct application. Note: Check your local or state laws before installing. Shipped oversize.Applications:1958-64 348ci / 409ci Chevrolet:With Air Condi tioningWith Power BrakesWith Automatic or Manual TransmissionWith Column or Floor Shift Application Notes:1-3/4-2 tube diameter with 2-1/2 collector diameter and a same as head portTri-Y design Emission Notes: The product accompanying this document is legal only for off-highway use (except in California or states that h ave adopted California emission standards) racing use or for use on pre-emission-controlled motor vehicles/motor vehicle engines (pre-1974 domestic vehicles certified to California standards pre-1974 domestic vehicles certified to federal standards anda ll pre-1974 foreign vehicles) per the manufacturers application guide
Classic Industries® is a registered trademark. All content on this website is copyrighted. No part of this website, including text, photos, or illustrations may be copied without the prior written permission of Classic Industries®. All Rights Reserved. Copyright © 1994-2024 Classic Industries®