Porsche 911 Twin Plug Heads (Lot 62)

Description

OFFERED WITHOUT RESERVE

From the estate of Porsche Master Mechanic David Glenn—director of RUF’s famed Yellowbird engine program and longtime Porsche Motorsport North America specialist—comes an exceptional offering of over 70 no-reserve auction lots. The collection spans Porsche road and race cars, 911 project cars, engines, gearboxes, tools, parts, workshop equipment, and memorabilia, along with select personal vehicles.     Glenn’s five-decade career defined excellence in Porsche engine building, from Kremer Racing to RUF Automobile and Porsche Motorsport, where his precision and passion earned global respect. His meticulously maintained workshop reflects that legacy—filled with authentic engines, precision tools and equipment, reference materials and carefully preserved parts.     On-site lot viewings are available by appointment at Hagerty Garage + Social Savannah, 1446 Dean Forest Rd., Savannah, GA 31405.   * * * 

Offered from the estate of Porsche Master Mechanic David Glenn, this set of six reconditioned air-cooled Porsche 911 twin-plug cylinder heads represents another exceptional grouping of competition-grade components from Glenn’s renowned workshop. 

Each head appears to be prepared for twin-plug ignition, a hallmark of Porsche’s motorsport evolution from the early 1970s onward, improving combustion efficiency and high-RPM performance. The set is believed suitable for 2.5L to 3.0L 911 racing or high-performance applications, making it ideal for authentic ST, RSR, or custom twin-plug engine builds.

While part numbers are not confirmed, the design and machining reflect the standards of factory and race-prepared components from Glenn’s period of active Porsche competition support.

As with all mechanical items from The David Glenn Porsche Collection, inspection is encouraged via the detailed photo gallery or in person at Hagerty Garage + Social Savannah.

Highlights 

• Offered from the David Glenn Porsche Collection 

Included 

• Reconditioned, Heads, Air-Cooled Twin Plug Heads (6)

Additional Notes  

A Broad Arrow Specialist is working as an agent on behalf of the seller of this vehicle. As such, the purchase transaction will be facilitated by Broad Arrow, including vehicle payment and title/ownership reassignment. Broad Arrow is a wholly-owned subsidiary of Hagerty. 

Contact: Marvin Waters  Phone: 910.315.2918  email: mwaters@hagerty.com 

Note to Bidders – The David Glenn Porsche Collection

All Lots are offered “as is, where is.” Descriptions are based on information provided by the seller and third-party sources; the seller, its agent, and Hagerty Marketplace do not make any representations or warranties, express or implied.

This Collection includes a wide variety of items—complete and project vehicles, engines, parts, tools, shop equipment, and memorabilia—each with unique condition and intended-use considerations. Bidders are encouraged to inspect each Lot or conduct any desired due diligence before bidding to ensure it meets their expectations for functionality, completeness, and authenticity.

Please review the Marketplace Terms of Use and contact us with questions about specific inclusions, particularly for grouped items.

Taxes & Fees:

As a reminder, auction lots on Hagerty Marketplace carry a bidder’s premium that is 7% of the final sale price, $500 minimum. In addition, applicable Georgia sales tax (7%) will be collected on non-vehicle purchases after an auction, unless the buyer qualifies for an exemption. Buyers are responsible for all taxes, export/import duties, and compliance requirements. Valid resale or export documentation must be provided before payment to claim any exemptions.

Invoicing:

Please note that invoices will be sent by the seller’s agent to all buyers approximately Dec 12th-14th.

Shipping:

All items are FOB Hagerty Garage + Social, Savannah, Georgia, and must be removed within a reasonable time following payment. Shipping may be coordinated through Kevin Allen, American Moving & Storage (912.856.4644) at the buyer’s expense.

For questions regarding pick-up scheduling or on-site logistics, contact Marvin Waters at 910.315.2918.

Holiday Closures:

No pickups are permitted December 24-28, 2025, or December 31, 2025 – January 4, 2026.

Legal Notice:

Purchase transactions are facilitated directly between buyers and sellers, with the assistance of Broad Arrow as seller’s agent. Hagerty Marketplace is not a party to any sale transaction.