Moroso 73689 Red Ultra 40 Spark Plug Wire Set - Compatible with Big Block Chevy Engines, 90 Degree Plug Ends, HEI Distributor, Under Header Routing - Perfect for High-Performance Racing & Engine Upgrades

BBC Ultra 40 Ignition Wire Set, HEI, Crab Cap Distributor routes wire under header, Unsleeved, red wire

Ultra 40 Custom Fit Wire Set, Red Wire, Unsleeved, BBC, Under Header/HEI

Cost-effective version of our race proven Ultra 40 Race Wire, without heat sleeving

7mm or 8.65mm diameter wire with 40 ohms of resistance per foot

Complete, ready-to-install sets available for specific engines

Wire for each cylinder is labeled