PerTronix 40511 Flame-Thrower 40,000 Volt 3.0 ohm Coil

Exceeded expectations creates great spark on my 1957 jd 420 dozer

This coil was recommended for installation of PerTronix HEI. Word of note: When installing the PerTronix HEI system in the distributor , measure the height of the rotor from the rotor point of contact, to the distributor plate BEFORE removing the distributor plate with the points. Some after market point sets have a rotor that will measure a little taller than OEM. The magnet that mounts on the distributor bumps will make an aftermarket rotor sit .060 higher inside the distributor cap, thus internally destroying the cap. Measure the height of the rotor AGAIN after installing the PerTronix HEI system !! The engine in my boat has never run THIS GOOD! Drove the boat 36 miles up the Missouri River, and 36 miles back. That's 72 miles round trip on a river, without one single hiccup. Great product.

Excelente artículo les ayudará mucho para los que andan modificando sus Vochos para una mejor respuesta de encendido, en mancuerna con el distribuidor de la misma marca, es una gozada

Just recently installed a PERTRONIX (40511) 3 ohm coil on a 4AGE BIGPORT and there is quite a noticeable difference with the power. Low down torque slightly increased and a smoother delivery of power through the rev range. Was using a BOSCH SU12 before and it was good but installing the PERTRONIX gave the engine a SLIGHT increase of power. Highly recommend if you want to replace your OEM coil unit.AAA+++

Good spark. Opened plug gap 5 thou to take advantage.