MSD Street Fire Spark Plug Wire Set 5551 | V8 HEI Universal | Multi-Angle Boots

MSD Street Fire Spark Plug Wire Set — 5551

The MSD 5551 Street Fire spark plug wire set delivers reliable, low-resistance ignition performance for V8 engines running an HEI distributor. Featuring 8.5mm diameter wires with a spiral-wound low-resistance core, multi-angle plug boots for tight engine bay fitment, and a durable black sleeve — this universal set is built for street performance at an accessible price point.

Key Features

• 8.5mm diameter wire for maximum spark energy transfer
• Low-resistance spiral core conductor — 500 ohms/ft
• Suppresses RFI/EMI interference without sacrificing spark output
• Multi-angle plug boots for flexible routing in tight engine bays
• HEI distributor cap socket (large cap) — universal V8 fitment
• Durable black outer sleeve — heat and abrasion resistant
• Fits small block and big block V8 applications with HEI ignition

Specifications

• Part Number: 5551
• Brand: MSD
• Wire Diameter: 8.5mm
• Conductor: Spiral wound, low resistance
• Resistance: 500 ohms/ft
• Boot Style: Multi-angle
• Distributor Fit: HEI (large cap), universal V8
• Color: Black
• Weight: 2.98 lbs
• Quantity: 1 set (8 wires)

Compatible Applications

Universal fit for V8 engines with HEI distributor, including:

• Chevrolet Small Block V8 (262–400 ci)
• Chevrolet Big Block V8 (396–454 ci)
• Pontiac V8 (326–455 ci)
• Oldsmobile V8 (307–455 ci)
• Buick V8 (340–455 ci)

Verify distributor cap style and plug boot angle compatibility before ordering.