Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Ford 351 Windsor MSD Pro-Billet Distributor Magnetic Trigger # MSD8578Ford 351 Windsor MSD Pro Billet Distributor Magnetic Trigger # MSD8578 Small diameter distributor for 351W, includes iron gear. Must be used with an MSD 6, 7 or 8 series ignition. Features: Billet housing is 5 8 smaller in diameter than stock Ford distributors Must be used with an MSD Ignition Control Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap A Dapt) Nylon pads ensure smooth operation of the advance
Ford 351 Windsor MSD Pro-Billet Distributor Magnetic Trigger # MSD8578Small diameter distributor for 351W, includes iron gear. Must be used with an MSD 6, 7 or 8-series ignition.
Features:
Billet housing is 5/8 smaller in diameter than stock Ford distributors
Must be used with an MSD Ignition Control
Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)
Nylon pads ensure smooth operation of the advance weights
Advance weight pins are staked and tig welded to the plate
Mechanical advance assembly can be locked out for crank trigger systems
Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
Polished steel shaft is QPQ coated and guided by a sealed ball bearing
Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
CNC machined billet aluminum housing and billet aluminum base
Easy-to-adjust mechanical advance with supplied springs and stop bushings
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 1896 reviews
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Product Reviews
★★★★★ 5
Great Socks
Color: (001) Black / Black / Castlerock, Size: Large
I keep ordering these over and over again. They fit well, and are soft and comfortable. My feet don't sweat like crazy while wearing them. The cupped heel makes them fit even better. They hold up to everything from everyday use to active lifestyles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
Talla perfecta
Color: (001) Black / Black / Castlerock, Size: Large
Excelente producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Very comfy!
Color: (100) White / White / Halo Gray, Size: Medium
Very soft, fits well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 4
Good sock but thick
Color: (001) Black / Black / Castlerock, Size: Small
These Under Armour socks are high quality and definitely durable, with great cushioning and a solid fit that stays in place throughout the day. The material feels supportive and they hold up well after multiple washes without losing shape.
My only minor downside is that they’re thicker than I expected. They feel more like a heavy-duty training sock, which is great for colder weather or intense workouts, but a bit bulky for everyday sneakers or warmer days.
That said, the quality is excellent, and if you prefer a thicker, more cushioned sock, these are perfect. Just something to be aware of depending on how you plan to use them.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Black Under Armor Socks
Color: (001) Black / Black / Castlerock, Size: Medium
They fit perfect. I bought them for my
Boyfriend & most pairs are too big or not
Really no shows like they say. If they have white ones, I will be purchasing more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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