SKU: 69811650482

MSD Pro-Billet Crank Trigger Distributor MSD8486

Sale price$432.58 Regular price$480.64
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Description

MSD Pro-Billet Crank Trigger Distributor MSD8486Pro Billet Crank Trigger DistributorSmall Big Block Chevy Super Tall Block, Low Profile Distributor with Crab Cap Brand: MSD Part Number: MSD8486 Description: Designed to fit low in the block to clear firewall and intake combinations 0. 500" taller housing for extra tall Chevrolet based engine blocks CNC machined billet aluminium housing and Dupont Rynite base Adjustable slip collar for engines with modified deck heights Oversized polished steel shaft

Pro-Billet Crank Trigger DistributorSmall/Big Block Chevy Super Tall Block, Low Profile Distributor with Crab Cap
Brand: MSD
Part Number: MSD8486
Description:
  • Designed to fit low in the block to clear firewall and intake combinations
  • 0.500" taller housing for extra tall Chevrolet based engine blocks
  • CNC machined billet aluminium housing and Dupont Rynite base
  • Adjustable slip collar for engines with modified deck heights
  • Oversized polished steel shaft with a QPQ coating for friction reduction
  • Shaft is guided by a sealed ball bearing and an extra long sintered bushing
  • Special oil tract improves lubrication to the distributor and cam gear
  • O-ring seals can be added to modified blocks to improve oil pressure control
  • Supplied with small, low crab style distributor cap, rotor and bronze gear
  • Must be used with an MSD Crank Trigger and MSD Ignition Control

The MSD Crab Cap Distributors are built specifically for racing engines with almost no room o tunnel rams or blowers. The distributor is equipped with a special low-profile crab style distributor cap to allow it to fit in extremely tight areas. The housing features two optional O-rings at the bottom that improve oil control by preventing oil pressure loss. Also, a small oil bleed hole located in the base sprays oil on the distributor and camshaft gears to prevent excessive wear. Since this is a racing distributor, there is an adjustable slip collar to make up for engines that have had the distance between the mounting surface and the gear modified. Crowning this distributor is MSD own Crab Cap! This cap incorporates spark plug style terminals for a better connection and grip to the plug wires.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 69811650482

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Joshua Roland
Chelsea, US
★★★★★ 5
Best choice! Absolutely necessary for anything above basic stock bass.
Bonded to services well, completely removed panel reverberation in my tacoma. Also really made the doors so much quieter even when closing. Very happy with the result. Used only one set on my 01 tacoma 4 door. Installed inside doors on exterior skin panel, over interior door panel access holes (sealing the door to provide backpressure to door speakers (left drains open)), roof panel, and back wall of cab. Achieved about 70% coverage and am very happy. 2 8in SKAR SVR8 at 1oh on walmart power acustic 2500 (only rated to ~800rms at 2oh, forum showed testing at 1oh worked about 1kw) in 6th order with blow through into cab. With cab gain, im over 130db between ~30 and ~50hz. This was a necessary addition!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
R
Verified Purchase
Rob Chapman
Dallas, US
★★★★★ 5
Nice and sticky
Works as it should. No complaints.
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Reviewed in the United States on May 8, 2026
N
Verified Purchase
Nick Wilson
Omaha, US
★★★★★ 5
Mak sure area is clean before you install
This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
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Reviewed in the United States on April 29, 2026
S
Sam
Massapequa, US
★★★★★ 3
Looks good so far, will update once installed
Have not installed this yet, so this is only a first impression review. I bought it to use in the wheel well area on my truck, so I’ll update later once I actually get it on and see if it makes a real difference. So far it looks good out of the box and seems straightforward enough. One thing I’d recommend is making sure you have a sound deadening roller for install, because I would not try putting this on without one. Too early for me to say how well it works for road noise since it is not installed yet, but I wanted to post my initial thoughts for now and will update later.
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Reviewed in the United States on April 2, 2026
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Verified Purchase
Phil Cobb
Fort Morgan, US
★★★★★ 5
Great product, very impressed
Looks good, adhesive grabs well, forms well to floor pans. Price is great will be ordering more again. It definitely deadened the tin can sound you can get.
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Reviewed in the United States on March 29, 2026

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