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The Moroso Ultra spark plug wire set for BBC engines provides 135° plug boots with HEI-compatible sleeved insulation in red for under-header or tight-clearance applications. Intended for big‑block Chevy setups needing a sharper boot angle, the 135° configuration and sleeved finish help position wires away from obstructions while maintaining a red engine-detail look.
Moroso BBC Under Header 135 Deg Plug Boot HEI Sleeved Ultra Spark Plug Wire Set - Red
