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Linear spring rates (600 lb/in front
Genuine Winters replacement parts for Winters Birdcage Set WINSC2575
OD - Offset Inlet - Single Offset Outlet
Fits D port cylinder heads including ZZ4 crate engines
The soft hood seal is included to keep out hot engine air and create a perfect seal to the hood
Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Oldsmobile V8 - Oldsmobile A-Body / B-Body 1968-76 - Pair RH5R-UPGRADE Linear spring rates (600 lb/inHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman's Standard duty, Uncoated Hedders are manufactured using 18 gauge, mandrel bent primary tubes (some models built using thicker 16 or 14 gauge tubing), and 1 4 flanges (some models use 3 8" flanges). Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Hedman Hedders Standard Uncoated Headers 1 3 4" Tube
