OPGI.com works best with JavaScript enabled.
Holiday Bonus Free shipping over $199 + up to 20% off Restoration - use code: WINTERSALE
  • As seen on
  • Junkyard Empire
  • Barret Jackson

French Locks, 1964-66 GS-400/Riviera

Vehicle Specific View fitment for 2 models
Part# S230166
Sold As Each
Eligible for Price Match
$5.49
List Price: $6.95
You Save 21%
Low Stock
Only a few left for immediate delivery
Add To Wishlist 

Just like the originals

Make sure your 1964-66 exhaust manifold bolts don't loosen up, due to expansion and contraction, by using these stainless steel French locks. The 1964-66 GS400 requires six of part# S230165 and four of part# S230166, while all other models use part# S230166, as required.

Find Item In These Catalogs

  • 2024 Riviera 1963-76 128
  • 2024 Skylark, GS & GSX 61-72 232
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1963–1966 Buick Riviera single
1964–1966 Buick Skylark  
  • Headshot of OPGI Employee
    Have a Question? Chat with an Expert or Call 1‑800‑243‑8355
    Mon‑Fri 8:00‑4:30 PT Experts are currently offline
  • Low Prices. Price Match Guarantee
  • GM Automotive Experts. We know car parts
  • Guaranteed Fitment. 100% factory accurate
  • Superior Selection. Largest selection of in-stock parts

Customers Who Viewed This Item Also Viewed

Reviews (0)

UH OH! Product reviews didn't load.
Please reload the page, or unblock our review partner Yotpo.com.
French Locks, 1964-66 GS-400/Riviera
French Locks, 1964-66 GS-400/Riviera