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Description
MSD Pro-Billet Ready-To-Run Distributor MSD83521Pro Billet Ready To Run DistributorFord 289 302 Windsor, Magnetic Pickup, Vacuum Advance, High Output Module With Steel Gear Brand: MSD Part Number: MSD83521 Description: Steel Drive Gear to suit Factory Hydraulic Roller Camshaft 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
Pro-Billet Ready-To-Run DistributorFord 289-302 Windsor, Magnetic Pickup, Vacuum Advance, High Output Module With Steel GearBrand: MSD
Part Number: MSD83521
Description:
- Steel Drive Gear to suit Factory Hydraulic Roller Camshaft
- 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
- Housing is 5/8" smaller in diameter than stock Ford distributors
- Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
- Polished steel shaft is QPQ coated and guided by a sealed ball bearing
- 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 small diameter cap with HEI style terminals and race rotor (will accept MSD8441 Cap-A-Dapt)
- Does not require an MSD Ignition Control
- Now includes built-in Rev Limiter
- Note: Recommended coil is MSD8223
MSD Ready-to-Run Ford Distributors are the perfect upgrade for the 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 aluminium housings of these distributors are 5/8" smaller in diameter to accommodate induction setups and tight engine compartments. A maintenance free magnetic pick-up 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.7 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Just perfect.
Color: Gold Havana/G-15 Green, Lens Width: 55 Millimeters
I saw this model of Ray Bans while watching Top Gun: Maverick. Actor John Hamm (Cyclone, in the movie) sported these during the beach scene. I looked for them here in Amazon and was lucky to find them for less than $100. They fit just great, and the lenses (G-15), give a clear and high definition picture. I definitely recommend them, perfect for driving, cycling, or your next F/A-18 mission.
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Reviewed in the United States on December 10, 2024
★★★★★ 5
Almost like they used to be...
Color: Gunmetal/G-15 Green, Lens Width: 55 Millimeters
These are the 3rd pair of Caravans I've owned over the years. The 1st pair were chrome frames and got mangled one time when I had set them on the trunk of the car to fill-up and drove away without them. Went back after only 100 yards or so, but by then they had been clipped by another car and were toast. Kept the lenses, sent the frame back to B&L (when they were still in Rochester -- and when customer service really WAS important to the company) and they sent back a brand-new pair of black-framed beauties -- FOR FREE!
This pair recently experienced a broken frame - right at the junction of the lower curved piece that holds the lens frames together. (How this happened, I have no idea. I was wearing them. Put them in my shirt pocket. Took them out, put them on, and the lens was still in my pocket!) Now, Bausch & Lomb is owned by Luxottica (in Atlanta, GA.) Not entirely friendly, I would say, especially in the tone of the service rep's voice and bluntness. And I was told my only hope of getting any kind of satisfaction was to ship the broken pair to them and after examination they would decide whether it was a manufacturing defect or a customer caused one. Believe me -- there are NO damage marks on these black frames. The frame just cracked due to what? Fatigue, I guess. If judged in my favor they'd give me a substantial discount (40%, I believe) off list price on another pair that they might have in stock at the time. Egads! Talk about leaving you feeling helpless. NONE of the frames and lenses shown were to my liking, so I opted out of that choice and decided to search Amazon for a pair to my liking.
So, this brings me to the new ones -- the subject at hand. The lenses on these are advertised as being 55mm wide, which they are. However, the original Caravans were 58mm wide = a small but perceptable difference, especially in field-of-view coverage AND how they look on your face. The G15 lenses seem to be the same tint, and the color (gun metal grey) is very nice. They fit well, and are what one would expect given the name RayBan. Therefore, I recommend them.
[Footnote: As for my broken 58mm black-framed pair -- I looked up repair shops on the I-net, found 2 that seemed to talk a good game, picked one (in Cincinnati) and shipped them off today to have the frame laser welded. I am keeping my fingers crossed that they'll come back in usable shape (as promised) and I will again have my Old Faithfull's back. $35 to save a no-longer-made classic pair of RayBans is worth it in my book.]
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Reviewed in the United States on March 8, 2013
★★★★★ 5
Classic Design!! But the 55mm frame is too small..
Color: Gunmetal/G-15 Green, Lens Width: 55 Millimeters
Really solid frame and arrived rather fast (7 days before the expected date). It included the original packaging, booklets, cloth and case (the brown one) in the original box. Was surprised that it felt quite heavy, or at least more than what Im used to, although when I wear it I can't really feel the weight. The weight also adds to the feel of it making its structure feel a little more solid that lighter sunglasses.
Unfortunately, the 55mm gunmetal + green G 15 lens which I ordered, is about 6 millimetres too small at the sides for me although the lens and front frame are the right size for me and it's actually still wearable. (it's just me).
I would probably get the 58mm gold + green G15 later to see if there's a big difference (shouldn't be from the measurements given). That and the fact that these are a great pair of shades with a really classic design
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Reviewed in the United States on June 30, 2016
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Good shoes!!!!!
Size: 10, Color: Tan Full Grain
They are comfortable, they fit, great style. I bought blue, brown and black shoes.
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Reviewed in the United States on August 18, 2025