1 Results Found For "torque"

Hooker RacingHeart 3-Step Dragster Headers

Hooker introduces the RacingHeart 3-Step Dragster headers. The big block Chevy downswept headers feature 2.125 in./2.25 in./2.375 in. stepped primary tubes and 4.5 in. collectors with merge spears to maximize exhaust flow—resulting in horsepower and torque gains over a broad rpm range. RacingHearts are available in chrome plated mild steel or polished 304 stainless steel. Product details: * Collectors feature merge spears for increased exhaust velocity * 3/8 in. thick header flanges for strength and maximum sealing surface * Features bungs for Evac systems (Evac tubes and plugs included)

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