Product Summary

  • Does not require an MSD Ignition Control
  • Note: Will not fit XD and later Australian 351 Cleveland engines.
  • CNC machined billet aluminum housing and billet aluminum base
  • Equipped with Steel Gear
  • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
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Key Specs

MFG. Part #83521
BrandMSD
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Need To Know

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Return Policy

MSD 83521 Details

MSD's Ready-to-Run Ford Distributors are the perfect upgrade for bulky DuraSpark systems or ancient breaker point models. These distributors come complete and ready-to-run. All you need to do is drop it in the engine, connect three wires and fire the engine. Each distributor features an ignition module that produces a powerful inductive spark to improve combustion of the fuel mixture resulting in quick starts, smooth idle and increased performance.
The billet aluminum housings of these distributors are 5/8" smaller in diameter to accommodate induction setups and tight engine compartments. A maintenance-free magnetic pickup is responsible for triggering the high voltage sparks while a sealed ball bearing guides an oversized shaft.
Beneath the bolt down cap and MSD race rotor you'll find MSD's accurate mechanical advance assembly. Different advance springs and stop bushings are supplied so you can easily tune a curve to match your needs. Plus, there is a vacuum advance canister to increase economy on long drives. For protection, there is also an easy-to-set rev limiter!
Features:
Does not require an MSD Ignition Control
Note: Will not fit XD and later Australian 351 Cleveland engines.
CNC machined billet aluminum housing and billet aluminum base
Equipped with Steel Gear
Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
Mechanical advance assembly can be locked out for crank trigger systems
Easy-to-adjust mechanical advance with supplied springs and stop bushings
Polished steel shaft is QPQ coated and guided by a sealed ball bearing
Advance weight pins are staked and tig welded to the plate
Powerful built-in module produces a 7.5 amp single spark through high rpm
Nylon pads ensure smooth operation of the advance weights
Housing is 5/8” smaller in diameter than stock Ford distributors
Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)
Vacuum advance canister for improved economy (can be locked out)
Includes built-in Rev Limiter!
Simple and clean installation with only three wires to connect
CARB E.O. Approved
Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction

Specs

  • Brand: MSD
  • Category: Ignition
  • Color: Red
  • Distributor Cap Included: Yes
  • Distributor Type: Ready To Run
  • Emission Code: 3
  • Engine: Ford Small Block
  • Gear: Steel
  • Gear Material: Steel Melonized QPQ Coated
  • Grade Type: Performance
  • Ignition Box Required: No
  • Ignition Coil Included: No
  • Ignition Rotor Included: Yes
  • Part Type: Distributor
  • Product Type: Distributor
  • Sub Category: Distributor and Magneto
  • Warning: California Proposition 65
  • Warranty: Manufacturer's Limited 1 Year Warranty

MSD 83521 Specifications

KEY SPECS
MFG. Part #83521
BrandMSD
GENERAL
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Questions & Answers

Fitment

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 351W

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 255

  • Ford 302

  • Ford 351W

  • Ford 255

  • Ford 302

  • Ford 302

  • Ford 302

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 302

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 255

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 260

  • Ford 289

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 255

  • Ford 302

  • Ford 255

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 255

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 302

  • Ford 255

  • Ford 255

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • 5.0L Ford Small Block Windsor

  • Ford 351W

  • Ford 302

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 289

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 351W

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 302

  • Ford 351W

  • Ford 255

  • Ford 302

  • Ford 255

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • 5.0L Ford Small Block Windsor

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 351W

  • Ford 351W

  • Ford 302

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 255

  • Ford 255

  • Ford 302

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • 5.0L Ford Small Block Windsor

  • Ford 260

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 302

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 302

  • Ford 255

  • Ford 302

  • Ford 255

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • 5.0L Ford Small Block Windsor

  • Ford 260

  • Ford 289

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 302

  • Ford 302

  • Ford 255

  • Ford 302

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 302

  • Ford 255

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 302

  • Ford 255

  • Ford 302

  • Ford 289

  • Ford 302

  • Ford 302

  • 5.0L Ford Small Block Windsor

  • Ford 221

  • Ford 260

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 289

  • Ford 302

  • Ford 255

  • Ford 260

  • Ford 260

  • Ford 289

  • Ford 289

  • Ford 260

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