4150 Holley / Barry Grant / Edelbrock Carburetors Universal Square Bore Open Base Gaskets
Good to Go. No Setup, No Surprises.
Every part includes what you need to install and get back on the road. No extra steps, no hidden costs, and certainly no surprises.
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- Brand Aftermarket
- Type Engine Gaskets
- Make All Makes
- Model All Models
- Series All Series
Square bore open base gaskets engineered specifically for 4150 Holley, Barry Grant, and Edelbrock carburetor applications. These replacement gaskets eliminate vacuum leaks and restore optimal sealing between your carburetor and intake manifold, addressing performance issues like rough idle and reduced fuel efficiency caused by deteriorated or damaged base gaskets.
What's Included
- 10 x Square Bore Open Base Gaskets
Performance & Build Quality
- Superior Heat Resistance: Engineered to withstand extreme engine temperatures while maintaining seal integrity without deterioration.
- Vacuum Leak Elimination: Establishes reliable seal between carburetor and intake manifold, preventing unwanted air entry that disrupts air/fuel mixture.
- Optimal Engine Operation: Eliminates rough idle, stalling, and poor fuel economy by preventing vacuum leaks that compromise carburetor function.
- Premium Material Construction: Built from high-quality materials engineered to resist cracking, warping, and long-term degradation.
- Dependable Air/Fuel Ratio: Maintains proper carburetor performance by creating secure seal that prevents air leaks and ensures consistent engine operation.
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Simple Replacement: Direct fit construction allows for hassle-free installation during carburetor maintenance or rebuilding procedures.
Application Details
- Compatible Models: 4150 Holley / Barry Grant / Edelbrock Carburetors.
- CFM Applications: 390CFM, 450CFM, 470CFM, 570CFM, 600CFM, 650CFM, 660CFM, 670CFM, 700CFM, 730CFM, 750CFM, 770CFM, 800CFM, 830CFM, 850CFM, 870CFM, 950CFM, 1000CFM.
Product Specifications
- Fitment: Direct Replacement
Perfect solution for enthusiasts and mechanics dealing with worn, cracked, or leaking carburetor base gaskets that compromise engine performance and fuel efficiency.
Due to the critical nature of these sealing components for optimal engine function, confirm compatibility with your carburetor specifications before installation. We recommend professional installation for best results.
Every order except for oversized items will automatically receive free standard shipping, so you can get your items without any additional cost.
If you need your order faster, express and same-day delivery options are available at checkout. Express and same-day delivery fees vary depending on the product and delivery location, so we’re unable to provide a standard rate in advance — the cost will be shown once your items are added to your cart.
We aim to provide same-day dispatch for all weekday orders placed before 12:00 PM (AEST during standard time or AEDT during daylight saving).
Once your order has been dispatched, you will receive an email notification with your tracking details. Tracking information may take up to 24 hours to appear, and please check your spam or junk folder if you don’t see the email in your inbox. Tracking is always included for orders above $50. For orders below $50, tracking will be provided if available.
For international orders, please note that shipments may be subject to import duties, taxes, and customs processing fees, which are applied once the package reaches its destination country. These charges are not included in our shipping fees and are the responsibility of the recipient.
Important Notes: While we strive to provide accurate delivery estimates, delays may occur due to stock availability, courier conditions, or other unforeseen factors. We appreciate your understanding and patience in these situations. Regardless of order value, every item is packed with care and delivered as promptly as possible.
All orders are covered by our free Standard Return & Refund Policy.
If you change your mind, you can return any unused, uninstalled product in its original condition at any time (there is no time limit) for store credit.
If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.
For change-of-mind returns, you’ll need to cover the return shipping cost. To start the process, simply fill out the required fields in our contact form.
All approved change-of-mind returns are processed as store credit only. Once your item has been received and inspected, processing may take up to 15 business days.
Every return is handled with care to ensure a fair and reliable process.
If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.
Precision-Formed Engine Gasket & Rocker Cover Sets
Don't settle for cheap replacements, choose lasting reliability. Designed for a perfect OEM fit to prevent oil and vacuum leaks under extreme operating conditions. Each gasket and cover is manufactured from heat-resistant polymers and elastomers, rigorously tested for pressure integrity, dimensional accuracy, and long-term chemical resistance. Engineered to seal precisely every time.
Select a numbered point above
Tap any marker to discover the engineering behind each component.
Component Breakdown
Engineering features explained
Heat-Resistant Composite Cover
Injection-moulded composite or aluminium alloy housing withstands continuous exposure to engine heat cycles without warping. Designed for exact OEM tolerances to maintain a secure seal across the cylinder head.
Integrated Bolt Seat Design
Reinforced bolt seats distribute load evenly during tightening, preventing warping or cracking. Ensures consistent clamping pressure across all gasket contact points.
High-Integrity Gasket Channel
Precision-machined channel retains gasket alignment and ensures uniform compression during installation. Tested for oil retention and resistance to blow-by under high crankcase pressure.
Oil Baffle & Drain Pathway
Internal oil flow guides reduce pooling and direct return oil efficiently back to the sump. Designed to minimise oil aeration and maintain proper lubrication balance under high RPM.
Chemical & Thermal Barrier Coating
Protective coating resists corrosion, oil degradation, and thermal fatigue. Extends component lifespan and maintains sealing performance even under repeated thermal expansion.