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The Moroso spark plug wire set for BBC applications is built for under‑header routing with 135° plug ends and HEI distributor compatibility, unsleeved and finished in black. As an Ultra series set, it addresses clearance demands beneath headers while matching HEI distributor layouts on big‑block Chevy engines, offering a direct replacement option that preserves proper firing order connections.
Moroso BBC Under Header 135 Deg Plug End HEI Dist Unsleeved Ultra Spark Plug Wire Set - Black
