Description
This Exhaust Valve (S‑530) is engineered specifically for the 1931–1936 Buick Series 80–90 straight‑eight engines. Manufactured to OEM‑style specifications, it ensures proper exhaust sealing, smooth valve operation, and long‑term reliability in classic Buick powerplants.
Features
- Correct fit for 1931–1936 Buick Series 80–90
- Precision‑machined for accurate seating and long service life
- Restores proper exhaust flow and compression
- Ideal for stock restorations and dependable touring
- Compatible with original valve train components
Why Replace Old Exhaust Valves?
Exhaust valves endure extreme heat cycles. Over decades, they develop pitting, stem wear, and poor sealing — all of which reduce compression and throttle response. Installing a fresh valve restores proper sealing and protects the engine from premature wear.
Fitment
- Buick Series 80–90, 1931–1936
- Exhaust position
- Part number: S‑530
Notes
- Direct replacement
- Works with original guides, springs, and retainers
- Sold individually





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