Description:

BOTTOM CENTER OF PICTURE

SALES AD — GM 3818763

NOS Valve Spring Retainer — Chevrolet 235 / 261 / 265 / 283 / Early 327

Bring your early Chevrolet engine back to factory‑correct condition with this New Old Stock GM 3818763 Valve Spring Retainer, a genuine Group 0.851 valvetrain component used across Chevrolet inline‑six and small‑block V8 engines from the late 1950s into the early 1960s.

This hardened‑steel retainer locks the valve spring to the valve stem using standard 7° keepers, ensuring proper valve control and long‑term reliability. Perfect for restorations, period‑correct rebuilds, or stocking your vintage GM engine hardware inventory.

✔ Features

• Genuine GM NOS part

• Correct Group 0.851 valve‑spring retainer

• Hardened steel construction

• Fits early Chevrolet I6 and SBC engines

• Ideal for stock restorations and OEM‑spec rebuilds

✔ Fitment Highlights

Chevrolet Inline‑6

• 235

• 261

Chevrolet Small‑Block V8

• 265

• 283

• Early 327 (select heads)

Used across:

• Passenger cars

• Light trucks

• Industrial engines

✔ Condition

• NOS (New Old Stock)

• Clean, original GM hardware — no reproductions