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Tri-Y Performance Header - Doug Thorley Headers

    http://www.dougthorleyheaders.com/why-tri-y-52
    Invented by Doug Thorley Headers, the Tri-Y header is designed to match the synchronization of the engine firing order, thereby maximizing exhaust scavenging. This design creates the optimum torque and greatest horsepower gains in comparison to any other design. See what why many say this is one of the best performance headers out there!

Doug Thorley Tri-Y Headers - Summit Racing Equipment

    https://www.summitracing.com/search/part-type/headers/product-line/doug-thorley-tri-y-headers
    Doug Thorley Tri-Y Headers 41 Customer Reviews Thorley headers are designed to outflow your stock exhaust manifolds. They are designed with an emphasis on maximum low and mid range torque, while making ample horsepower throughout the RPM range.

Headers - Tri-Y one-piece Header Style - Free Shipping on …

    https://www.summitracing.com/search/part-type/headers/header-style/tri-y-one-piece
    Headers - Tri-Y one-piece Header Style - Free Shipping on Orders Over $99 at Summit Racing Filters In Stock In Stock. Ships Today. (30) In Stock, Including at a Supplier. Ships In a Few …

Headers - Circle Track Tri-Y Header Style - Summit Racing

    https://www.summitracing.com/search/part-type/headers/header-style/circle-track-tri-y
    Beyea Custom Headers DLMTY-9LS3LS47 - Beyea Dirt Late Model Headers. Headers, Dirt Late Model, Tri-Y, 304 Stainless Steel, Natural, 3.50 in. Collector, Chevy, Small Block, Pair. Part Number: BEY-4426. Not Yet Reviewed. Estimated Ship Date: May 10, 2022 (if ordered today) Drop Ship. Free Shipping.

Free Shipping on Orders Over $99 at Summit Racing

    https://www.summitracing.com/search?keyword=tri%20y%20headers
    Find Parts and Accessories tri y headers KEYWORD and get Free Shipping on Orders Over $99 at Summit Racing! Earn Summit Bucks on Powersports Parts You Need! Vehicle/Engine Search Vehicle/Engine Search Make ... Headers, Tri-Y, Steel, Silver Ceramic Coated, 1 5/8 in. Primary Tube O.D., 2.500 in. Collector Diameter, Chevrolet, Small Block, Pair ...

Custom Tri-Y Headers - Drivn

    https://drivn.com/post/69507/custom-tri-y-headers
    The headers I use are a set of semi-custom made Tri-Y headers originally patterned off of a set produced by H-O racing back in the seventies and were produced by a company called Tribal Tubes which is owned by Ron Watt.

What are TRI Y headers - The H.A.M.B.

    https://www.jalopyjournal.com/forum/threads/what-are-tri-y-headers.322291/
    There is a difference between "Tri Y" headers and 2-2-1 headers. These are 2-2-1 headers. 2 adjacent cylinders are yoked together and then they are yoked together again farther down the line. The firing order doesn't come into play. Just the proximity of the cylinders. Even though there are 3 Ys, these are not considered "Tri Y" headers.

Tri-Y Headers On Sale at PitStopUSA.com - Racing Helmets

    https://pitstopusa.com/c-1207070-exhaust-system-headers-and-components-headers-street-strip-tri-y-headers.html
    More About Tri-Y Headers Pit Stop USA has everything you need to build a winning race car or street machine and get you to the finish line first. PitStopUSA.com offers a huge selection of circle track parts, drag racing parts and accessories from the biggest brands in drag racing including Tri-Y Headers and more at low everyday prices.

TRI Y HEADERS - Don Terrill’s Speed-Talk

    https://www.speed-talk.com/forum/viewtopic.php?t=17726
    As a very general rule, well-designed four-into-one headers will make more peak horsepower, and tri-Y headers will make more power everywhere else. Drag racing and long-track motors almost always use four-into-ones.

New Tri-Y headers 350-455 D-port and O-port 2nd gen ... - Pro …

    https://www.pro-touring.com/archive/index.php/t-79357.html
    Pontiac Tri-Y headers started with HO Racing's Tri-Y's years ago, and they were known for fitting tight 2nd generation birds and providing exceptional ground clearance...always a problem with headers on these cars. If you have ever owned a firebird with headers you have probably scraped them on the ground frequently. It was frustrating.

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