Round Valve Cover Breather Kit For SBC BBC SBF V8 Engines, Push In Breather, Oil Filler Cap Replacement, Fits One And A Quarter Inch Hole Valve Covers, One Inch Neck, Works With 327 350 302 454 502 And Windsor V8

Round valve cover breather cap for V8 engines 1-1/4 hole
✔️ Single breather cap, 3 in dia, 1 in neck, fits 1-1/4 in hole

This round valve cover breather cap is designed to vent crankcase pressure and prevent oil leaks in V8 engines. It’s a direct replacement for 1-1/4 inch valve cover holes on SBC, BBC, Windsor, and Cleveland setups, making crankcase airflow smoother and seals tighter.

✅ 3 in diameter body provides solid coverage for common V8 valve covers
✅ 1 in neck matches the specified 1-1/4 inch hole fits
✅ Alloy construction delivers durability and corrosion resistance
✅ Replaces broken caps to maintain crankcase balance and airflow

💡 What is a valve cover breather cap used for?

This handy cap helps balance crankcase pressure and prevent oil leaks. - It vents gases while keeping proper airflow
- It seals around a 1-1/4 inch hole on V8 valve covers
- Alloy construction adds durability for long service life