OER 3890382 Exhaust Pipe Extension Block O.d.

( Brand: Oer ), ( Manufacturer Part Number: 3890382 ), ( Part Type: Pipe Exhaust Block )

Review OER Chevrolet Exhaust Pipe Extension Small Block Inch.d. Various Model's fits 1967-72

The **OEM 3890382 Exhaust Pipe Extension Block (1967 1972 Chevrolet)** is a precision-engineered aftermarket replacement designed to replicate the exact specifications of the original equipment manufacturer (OEM) component found on select Chevrolet models from the late 1960s and early 1972. Crafted from high-quality, heat-resistant steel, this extension block is built to withstand the extreme temperatures and mechanical stresses of a high-performance exhaust system while maintaining structural integrity and durability. The part features a clean, polished outer diameter (O.D.) finish, ensuring a seamless fit with the surrounding exhaust piping and mufflers, minimizing the risk of leaks or misalignment that could compromise performance or exhaust flow. Ideal for applications requiring an extended exhaust tailpipe or additional clearance such as undercarriage modifications, lifted suspensions, or custom exhaust setups the block is designed to maintain proper exhaust gas evacuation while preserving the factory aesthetic where applicable. Whether restoring a classic Chevrolet to its original condition or upgrading an exhaust system for improved sound and efficiency, this OEM-style extension block provides a reliable, long-lasting solution that adheres to the exacting standards of the original design. Its straightforward installation and compatibility with aftermarket exhaust components make it a versatile choice for both restoration projects and performance enhancements.

### **Pros and Cons of buying a OER 3890382 (1967-72 Chevrolet Exhaust Pipe Extension Block, 1.5" O.D.)**

1. **Compatibility** This part is specifically designed for 1967 1972 Chevrolet vehicles, ensuring a proper fit without modifications. It is likely intended for applications like the 327, 350, or 396 V8 engines, which were common in this era.

2. **Durability** OER (Original Equipment Replacement) parts are typically manufactured to meet or exceed factory specifications, using materials that resist corrosion and heat stress. This should provide long-term reliability if installed correctly.

3. **Performance Considerations** If you are modifying your exhaust system for better flow or aesthetics, this extension block may help maintain proper spacing between components, reducing the risk of leaks or interference with other parts.

4. **Ease of Installation** Since it is a direct replacement, finding and installing it should be straightforward for someone with basic mechanical skills. Most OER parts come with gaskets or seals included, simplifying the process.

5. **Cost-Effective** Compared to custom or aftermarket alternatives, this part is likely priced affordably, making it a budget-friendly solution for restoring or upgrading an exhaust system.

6. **Support for Restoration Projects** If you are restoring a classic Chevrolet, using OER parts helps maintain authenticity while ensuring functionality. This can be valuable for preserving the vehicle s original character.

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1. **Limited Availability** OER parts, especially for older vehicles, may not be as widely stocked as modern aftermarket alternatives. You might need to order it from a specialty supplier, which could take time.

2. **Potential Fitment Issues** While designed for 1967 1972 Chevrolets, slight variations in exhaust configurations (e.g., different manifold or header setups) could require additional modifications or adapters.

3. **Quality Variability** Not all OER parts are created equal. Some manufacturers cut corners on materials or machining, leading to premature wear or leaks. Researching the specific brand s reputation is advisable.

4. **Compatibility with Modern Modifications** If you have already made aftermarket changes (e.g., headers, catalytic converters, or exhaust wraps), this part may not integrate seamlessly without further adjustments.

5. **Corrosion Risk** Older vehicles often suffer from rusted-out exhaust systems. If the original components are severely corroded, the extension block may not solve underlying issues without additional repairs.

6. **Lack of Customization** Unlike aftermarket options, this part does not offer design flexibility (e.g., different lengths, materials, or finishes). If aesthetics or performance tuning is a priority, you may need to pair it with other aftermarket components.

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### **Conclusion**

The **OER 3890382 exhaust pipe extension block** is a solid choice for restoring or maintaining the exhaust system on a 1967 1972 Chevrolet, provided the fit is confirmed and the part is sourced from a reputable supplier. It offers reliability, compatibility, and ease of installation, making it ideal for enthusiasts prioritizing authenticity and functionality. However, if you are pursuing performance upgrades or aesthetic customization, you may need to supplement it with aftermarket parts.

For most restoration projects or straightforward repairs, this part is a **recommended purchase** due to its direct replacement nature and durability. Always verify fitment with your specific vehicle s exhaust configuration and inspect the part for quality upon arrival.

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Buy the **OER 3890382** if you need a straightforward, factory-matched extension block for your 1967 1972 Chevrolet s exhaust system. Pair it with high-quality gaskets and seals, and ensure the rest of your exhaust components are in good condition to avoid future issues. If you are unsure about fitment, consult a mechanic or exhaust specialist before purchasing.

Details:

Chevrolet Applications1967-1970 Camaro1967-1970 Impala1967-1970 Bela Air1967-1970 Biscayne1967-1970 Caprice1971-1972 Pickup Truck1971-1972 Suburban1971-1972 Blazer1967-1970 Chevy II / Nova1966-1968 Corvette1970-1981 Corvette GMC Applications1971-1972 GMC Jimmy. 1967-72 Chevrolet; Exhaust Pipe Extension; Small Block; 2.D.; Various model's: Reproduction short extension pipe which slips in between the exhaust manifold main header and supports packing gasket. This item is manufactured in stamped steel replicating the original quality and fitment Fits various GM Small Block applications.

part #: 3890382 prices

• $23.70-$29.83

specifications emissyste:

• for makes: Chevrolet
• for years: 1967-72
• brand: Oer
• mpn: 3890382
• part type: Pipe Exhaust Block

shipping emissyste:

• type: Calculated
• class: Standard, Expedited
• transit: 3-7 Days
• carrier: USPS, UPS, FedEx
• cost: $6.07
• service: USPS Ground Advantage, UPS Ground, UPS 2nd Day Air, FedEx Ground / FedEx Home Delivery

returns emissyste:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general emissyste:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

payments emissyste:

• wallet: Apple-pay
• credit card: Discover
• other

seller emissyste:

• rating: 99.6%
• # reviews: 45466
• city: Huntington Beach, California

offer emissyste:

• sold: 0
• started: February 18, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 10

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