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Product Summary

Capacitive Discharge Ignition Box Output, Black

  • Provides full power output at high rpm
  • Features a capacitive discharge technology
  • Puts out multiple sparks improve starting and idle
  • This ignition is ideal for budget minded enthusiasts
  • It easily connects to points, amplifiers and magnetic pickup distributors

Rebates Available

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Key Specs

D-40-43
MFG. Part #5520
BrandMSD
Ignition Box OutputCapacitive Discharge
CircuitryDigital
CARB EO#
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Need To Know

Quick and Easy Returns

Return Policy

MSD 5520 Details

The Street Fire Capacitve Discharge Ignition is perfect for performance enthusiasts with a tight budget. The ignition offers capacitive discharge technology and will fire a series of multiple sparks that last for 20° of crankshaft rotation when the engine is running at lower rpm. This ensures combustion of the air/fuel mixture and produces great throttle response and smooth idle.

The CDI is built around a durable cast aluminum housing and easily connects to points, amplifiers and magnetic pickup distributors. An adjustable rev limiter will protect the engine in the event of driveline failure. This rpm is adjustable with rotary dials in 100 rpm increments. If you have a 4, 6 or 8-cylinder engine, the Street Fire CDI will connect and fire it up! Covered by CARB E.O. # D-40-43

Features:

  •  Capacitive discharge technology
  •  Multiple sparks improve starting and idle
  •  Full power output at high rpm
  •  Easily connects to points, amplifiers and magnetic pickup distributors
  •  Adjustable rev limiter for overrev protection

Charts

Specs

  • Spark Energy:  95 MJ Per Spark
  • Primary Voltage: 435 Volts  
  • Secondary Voltage: 45,000 Volts  
  • Spark Series Duration: 20° Crankshaft Rotation 
  • RPM Range: 15,000 RPM with 14.4 Volts  
  • Voltage Required: 10-18 Volts, Negative Ground  
  • Current Draw: .7Amp per 1,000 RPM  
  • Weight & Size: 1.5 LBS. 6"Lx3.5"Wx1.75"H

Rebates

Holley Fuel Up Spring Savings Event 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period runs from March 30, 2026 through April 19, 2026.

Warranty Information

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For warranty information, visit http://www.msdhelp.com/

MSD 5520 Specifications

D-40-43
KEY SPECS
MFG. Part #5520
BrandMSD
Ignition Box OutputCapacitive Discharge
CircuitryDigital
CARB EO#
GENERAL
Rev Limiter IncludedYes
Data AcquisitionNo
Timing RetardNone
Coil IncludedNo
Primary Voltage435 Volts output to coil
Spark Output95 MJ
Voltage Required10-18 Volts
Current Draw0.7 Amp per 1000 RPM
GTIN Code085132055203
Overall Length6.00"
Overall Width3.50"
Overall Height1.75"
ColorBlack

Ratings & Reviews

4.8

14 Reviews

Overall Assessment

The MSD Street Fire stands out for its exceptional performance and high quality that users find impressive. Reviewed highly for its perfect operation, great value, and easy installation, the product consistently meets users' expectations. It is dubbed a great solution for various issues, from boat to car engines. Noted for its adaptability and reliability, customers highlight the adjustable rev limiter and appreciate added features such as bullet-proof system and throttle response improvement. It's recommended by professionals for high RPM settings and is praised by customers for maintaining steady performance even under pressure. The MSD Street Fire's performance is so remarkable that some customers even find it outperforming its more expensive counterpart.

4.8

14 reviews

5

11

4

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0

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I will buy this product again

5.0

a year ago

Dr Phil

Colorado

Verified

Love the rusty products is it work with easy hook up and I've never had one fail. And the exhaust kits are awesome with the mandrel bins. They make the job easy and they look nice when they're finished.

Would Recommend

Use MSD products all the time Speedway makes it easier to ge

5.0

a year ago

Friends call me Dr. Phil

Colorado

Verified

Never have any issues 90% of the time from Speedway automotive

Would Recommend

Never expected MSD Street Fire existed, works great!

5.0

3 years ago

Maurice Jones

PHX AZ

Verified

Works great! Perfect!

Would Recommend

My 54 Stude never sounded so good!

5.0

4 years ago

Al Spag

South Bend Indiana

Verified

Great product and price!

Would Recommend

Works well.

4.0

4 years ago

Andy

Iowa

Verified

Everything hard wires. Wish it came with a harness so I would pull it from car easier. Just made my own.

Would Recommend

received the item havent install yet

4.0

5 years ago

Tigger

South Australia

Verified

I've received item havent install as yet

Would Recommend

Great bang for your buck

5.0

6 years ago

HR

Atlanta

Verified

Love the adjustable rev limiter and ease of installation.

Would Recommend

yes

5.0

6 years ago

Casey

Madison wi

Verified

Product replacement for NLA Mallory product did what we needed

Solved the problem

5.0

6 years ago

LHD Model A

Calgary AB

Verified

Had an old ProComp CDI installed, on a '53 flathead V8. Engine would start and run at idle but misfired with crazy spark timing on opening throttle. Performed multiple tests. Finally replaced with MSD unit and solved the problem.

Would Recommend

Fixed my boat problems

5.0

8 years ago

Mark

Fairbanks al

Verified

Happy that this and the distributor fixed my boat with a ford 2.3

Would Recommend

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