SKU: 66905282145

MSD Pro-Billet Ready-To-Run Distributor MSD8391

Sale price$679.51 Regular price$755.01
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Description

MSD Pro-Billet Ready-To-Run Distributor MSD8391Pro Billet Ready To Run DistributorChrysler 331 354 Hemi, Magnetic Pickup, Vacuum Advance, High Output Module Brand: MSD Part Number: MSD8391 Description: Simple and clean installation with only three wires to connect Powerful built in module produces a 7. 5 amp single spark through high rpm Easy to adjust mechanical advance with supplied springs and stop bushings Vacuum advance canister for improved economy (can be locked out) CNC machined billet

Pro-Billet Ready-To-Run DistributorChrysler 331-354 Hemi, Magnetic Pickup, Vacuum Advance, High Output Module
Brand: MSD
Part Number: MSD8391
Description:
  • Simple and clean installation with only three wires to connect
  • Powerful built-in module produces a 7.5 amp single spark through high rpm
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings
  • Vacuum advance canister for improved economy (can be locked out)
  • CNC machined billet aluminium housing and billet aluminium base
  • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
  • Polished steel shaft is QPQ coated and guided by sealed ball bearings
  • Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
  • Mechanical advance assembly can be locked out for crank trigger systems
  • Advance weight pins are staked and tig welded to the plate
  • Nylon pads ensure smooth operation of the advance weights
  • Supplied with a HEI style distributor cap and rotor (accepts Cap-A-Dapts)
  • Does not require an MSD Ignition Control
  • Now includes built-in Rev Limiter!
  • Note: Recommended coil is MSD8207

MSD's Ready-to-Run Pro-Billet Distributors for Chrysler engines are the perfect upgrade from breaker points or weak electronic ignitions. These distributors feature a maintenance-free magnetic pick-up that accurately triggers the built-in powerful ignition module. This module produces a high-output spark which improves combustion in the cylinder, resulting in quick starts, a smooth idle and great performance. Just beneath the race rotor is a mechanical advance assembly so a timing curve can easily be tailored to match your application. The QPQ coated shaft is guided by a sealed ball bearing assembly for stability and endurance while a vacuum advance canister helps increase economy on those long cruises. The Ready-to-Run Distributors are also a breeze to install. Simply drop it in the engine and connect three wires and you're ready-to-run to your favourite cruise! The front engine mount models are designed in a special small diameter housing to clear aftermarket heads and valve covers. A matching harness with a 3-pin Weathertight connector is supplied.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66905282145

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Jeanne Irwin
Whiting, US
★★★★★ 5
Lovely and sturdy for what I needed!
Size: 3 Set 4-Tier, Planks Not Included, Size: 3 Set 4-Tier, Planks Not Included
We LOVE these shelving brackets! We were moving our books from our office space to turn that room into a nursery and I needed something that would be sturdy and off the floor since my books were moving to our living room. These are extremely sturdy, and also go with our curtain rods and other furniture that has this industrial style. The instructions for assembly are simple and easy to follow, I would just ensure you have an extra set of hands (this isn’t a one person job) we ordered the 3 pack, but ended up only needing the two for the space on the wall and they still hold the weight well. Also this is a work in progress so please disregard that I don’t have the other two shelves here😂 Definitely a high quality and great looking alternative to some other brackets out there!
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Reviewed in the United States on January 17, 2026
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Verified Purchase
Leslie Guffey
Los Angeles, US
★★★★★ 5
Shelf
Size: 3 Set 3-Tier, Planks Not Included
Bigger than I expected but very sturdy and looks great !
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Reviewed in the United States on May 13, 2026
M
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Mike
Fort Morgan, US
★★★★★ 5
Takes time to install right.
Size: 3 Pcs 5 Tier, Not included planks, Size: 3 Pcs 5 Tier, Not included planks
Saw a few complaints about this product in the reviews before ordering but gave it a shot anyways. Took a little longer than I would have liked to install, but was only time consuming, not difficult. I made sure at least 2 screws on each base plate were into studs so it's more than sturdy. Hung each of the 3 brackets by 1 screw, marked the rest of the holes, took it back off the wall, installed anchors where needed, and finally screwed each back up fully. And for the people saying that the threads don't line up once snug, try switching out a fitting or pipe so it's a different thread mesh. If that doesn't work, just over tighten the fitting. Furthest one I pushed was nearly 3/4 of a turn past finger tight. I don't have a single loose connection on the whole shelf. My wife can't wait for us to go to lowes tomorrow for the wooden shelves to finish off the bookshelf this will be for her.
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Reviewed in the United States on July 27, 2022
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Grom kid
Bozeman, US
★★★★★ 4
Great product and price
Size: 3 Set 3-Tier, Planks Not Included
Nice quality product Great product
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Reviewed in the United States on March 22, 2026
T
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Tiffany Lopez
Carnegie, US
★★★★★ 5
Worth the money!
Size: 3 Set 3-Tier, Planks Not Included, Size: 3 Set 3-Tier, Planks Not Included
Such a good buy! High quality and easy to assemble. I will warn that hanging them is a little tricky (We read several reviews saying this and thought “they’re just dumb”, we were definitely wrong. I recommend installing/ attaching the middle level of plates first before attaching the tops and bottoms. It just made it easier for us to keep everything level throughout the process) but other than that very happy with this purchase! We hung three 12 inch boards inside and it added SO much storage and looks so nice! Definitely worth the money!
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Reviewed in the United States on August 18, 2025

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