BARTOO Aluminum Air Cleaner Spacer 1/2" for 5-1/8" Carburetor Opening — Machined, Vibration-Resistant

BARTOO's 1/2" aluminum air cleaner spacer creates reliable clearance between the air cleaner and carburetor for engines with a 5-1/8" carburetor opening.

This lightweight spacer is machined from high-quality aluminum to provide consistent sealing, straightforward installation and a durable, vibration-resistant connection for classic and performance intake setups. It’s designed to fit a broad range of carburetors that use a 5-1/8" opening—making it a simple way to add half an inch of clearance for air cleaners, fuel lines, or linkage without modifying the carb or air cleaner base.

Will this spacer fit my carburetor and air cleaner?

The spacer is intended for carburetors with a 5-1/8" opening and matches common bolt and sealing patterns used on Holley, Edelbrock, Rochester, Demon, Carter and similar models. Confirm the bolt circle and opening diameter on your carb and air cleaner before purchasing to ensure compatibility.

• Designed for 5-1/8" carburetor openings and standard bolt patterns
• Compatible with many Holley, Edelbrock, Rochester, Demon and Carter carburetors
• Works with SBC/BBC riser applications where half-inch clearance is needed

How does the spacer attach and seal?

The BARTOO spacer slips between the carburetor and the air cleaner base or intake riser and uses the existing fasteners to clamp the stack together. The machined face provides a flat sealing surface; pairing it with the correct gasket or seal improves leak resistance and keeps vacuum/airflow behavior consistent.

• Machined aluminum faces for a consistent clamping surface
• Uses your carburetor’s original mounting hardware—no special bolts required
• Pair with an appropriate gasket for improved sealing and vacuum integrity

What are the material and durability benefits?

Constructed from quality aluminum, the spacer resists corrosion and adds negligible weight compared with steel. Aluminum’s thermal properties help minimize heat soak to the air cleaner while offering stable performance under vibration and temperature cycles common in automotive use.

• High-quality aluminum resists rust and keeps weight low
• Precision machining gives consistent thickness and flatness
• Built to standard specifications for repeatable fitment and longevity

How will this change my installation or performance?

Installing a 1/2" spacer changes only the clearance around the carburetor, making room for taller air filters, fuel lines or linkage without altering carb jetting or engine tuning. It can alter intake geometry slightly; follow standard tuning checks after installation to confirm optimal operation.

• Adds 1/2" of space between air cleaner and carburetor or riser
• No permanent modification to carburetor or air cleaner required
• Perform routine checks on idle and throttle response after fitting

Who is this for: The BARTOO 1/2" aluminum air cleaner spacer is for classic car restorers, hot-rodders and DIY mechanics who need a clean, reliable half-inch of clearance for air cleaners, linkage or fuel lines on engines using carburetors with a 5-1/8" opening. It’s useful when replacing air filters, fitting aftermarket intake components or solving clearance issues without changing the carburetor or air cleaner base. If you require exact fitment, measure your carburetor opening and bolt pattern to confirm compatibility before ordering.