An HEI distributor with the coil in the cap sits taller and further out than a points-style cap, so a big block Chevy needs longer plug wires and a routing plan that clears both the valve cover and the header. This set is cut for 366-454 big block Chevrolet engines with a coil-in-cap HEI distributor and routes over the header and valve cover. The multi-angle boot lets each plug end be turned to clear the header tubes without putting a side load on the terminal.

Moroso 73759 Compatibility Notes:

• 8.5mm Ultra 40 spiral core wire measures only 40 ohms per foot, roughly one tenth the resistance of a carbon core wire.
• Low resistance suits high output and multiple spark ignition boxes while the spiral wind still controls radio frequency interference.
• Cut for 366-454 big block Chevrolet engines with an HEI distributor that has the coil in the cap, routed over the header and valve cover.
• Two layer EPDM jacket separated by a reinforcing braid handles underhood heat and adds pull strength.
• Silicone boots with snap lock terminals hold a positive connection at the plug and the cap.
• Multi-angle boots let the plug end be rotated for the cleanest routing in a crowded engine bay.
• Black wire, eight cylinder set, manufactured in the USA.

Note: order the set that matches your cap style, since coil-in-cap and external coil HEI distributors need different lengths at the cap end.