Will this work in my 1981 ford bronco with the straight 6 cylinder 300 cid 4.9 l engine?

I doubt this model number would give you the best performance. This is on a four cylinder tractor motor. Check the Flame Thrower site for the correct model number.

When installing this with the Pertronix ignitor, do you have to bypass the resistance wire? if you don't does it damage the coil?

I have the resistance wire hooked up with mine, if not you might burn out you coil and cause injury to your Pertronix ignitor. If you are building your own system I would put in a resistor or if you don't have a resistor I would add one.

Will this work for everyone ?

It should work for a 6volt system that is a 12volt vehicle that uses a ballast resister to drop the volts with out using the resister

Will this coil work with a 61 Ford Pickup 312 engine?

It will certainly work with the PerTronix ignition installed. If it has the same resistance as the OEM coil, no problem working with the stock system. Check out the .pdf on the PerTronix website for the resistance of the 40611 coil. You may need to remove the existing ballast resistor, or add one., depending upon the spec.

40611 Flame Thrower 40 000 Volt 3 0 Ohm Coil

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Description

⚡ Ignite your ride with power and style!

BUILT TO LAST - Machined exterior ensures durability and premium build quality for long-term performance.
STEALTH MODE STYLE - Matte black finish blends seamlessly with your engine bay for a clean, professional look.
PRECISION RESISTANCE - 3.0 ohm coil resistance engineered for optimal compatibility with inductive ignition systems.
ELECTRIFY YOUR ENGINE - Delivers a blazing 40,000 volts for unmatched ignition spark and reliability.
PLUG PLAY CONFIDENCE - Designed for easy installation with 15 or 30 ohm options to fit your specific ignition setup.

The Pertronix40611 Flame-Thrower Coil delivers a powerful 40,000 volts with a 3.0 ohm resistance, designed specifically for inductive ignition systems. Featuring a sleek black machined exterior, it combines durability with a stealthy aesthetic, making it the perfect upgrade for performance-focused enthusiasts seeking reliable ignition and a clean engine bay look.

Specifications

ASIN	B000N2XOYE
Automotive Fit Type	Universal Fit
Best Sellers Rank	24,934 in Automotive ( See Top 100 in Automotive ) 34 in Car Ignition & Heating Systems
Brand Name	Pertronix
Compatible with Vehicle Type	Multiple vehicle types
Connector Gender	male
Customer Reviews	4.5 4.5 out of 5 stars (482)
Global Trade Identification Number	00694342004903
Included Components	All parts
Installation Type	Screw-In
Item Type Name	Ignition Coil
Item Weight	680 g
Manufacturer	Pertronix
Manufacturer Part Number	40611
Model Number	40611
OEM Equivalent Part Number	40611
Part Interchange Info	[Interchangeable with certain ignition systems]
UPC	694342004903 685228713675 826732084213
Unit Count	1.0 count

Reviews

I**E

Very poor packaging

The coils are very good but the delivery method is atrocious, tried to return item but would only refund one item. Do not buy these from here. One star is far to high.

21.07.2023

S**Z

Muy buen producto, buena Chispa y potencia

25.08.2021

M**E

Fine

2.07.2025

A**ー

装着して5ヶ月で、端子が折れてレッカー呼ぶ羽目に…、70KMほどしか走ってないのに、残念です。

18.10.2025

R**R

Makes engine run smoother. Better than standard coil. Slightly more bottom power. Reduces or eliminate hesitation when pulling up.

2.05.2021

M**N

still works great on my old ford 800 series!! wow been 2 years nearly!!!! I also got compatible spark plugs and compatible spark plug wires to compliment this coil!!

26.09.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

AR$314966

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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