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Re-Birth of the GMC 702 ci V12 Engine

ThunderV12
1025 W. Tennessee St.

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Welcome to ThunderV12, LLC!

ThunderV12, LLC is home to the rebirth of the GMC 702 ci V12 engine. American made V12 power! ThunderV12, LLC has a significant inventory of GMC V12 1960-1965 engine cores that we have disassembled and graded. Only a small portion of these cores are good enough to become ThunderV12 engines. Our goal is not to rebuild GMC V12 engines, but to create ThunderV12 engines.

The basis of the ThunderV12 engine is the ultra rare GMC 702 ci V12 engine manufactured from 1960 to 1965. This engine was originally used in over-the-road semi trucks, fire and airport trucks as well as stationary power application. This V12 is based off the 1960 GMC V6 engine used in pickups and dump trucks till 1974.

Much time and hundreds of thousands of dollars have been spent to find, gather, manufacture parts and make available these power plants for your pleasure. Enjoy!

The ThunderV12 makes the most power between 2,000 and 3,000 RPM of any automotive based naturally aspirated 87 octane fueled crate engine you can buy for under $35,000.

Rare, Unique, Powerful and affordable!

Why we are here - Our Goal

At ThunderV12 LLC, our goal is to provide highest quality GMC V12 based engines and parts to the hot-rodders and custom car builders who are looking for something different.

Building a hotrod is a lot of effort and expense. With the proliferation of 75 year old Ford bodies stuffed with small block Chevy engines, it is hard to get noticed. Stuff a ThunderV12 in the front of anything and the crowds will form!

Rare

Wiki states over 90,000,000 Chevy small blocks have been produced from 1955 to today. For comparison, GMC produced less than 5,000 V-12's and we estimate less than 200 remain. Most of those 200 are basket cases. The ThunderV12 is the best of the rarest.

Collectable

Shelby built Only 32 427SC Cobra's in the 60's. The 427 SC Cobra is now one of the most collectable cars on the planet easily fetching $1,000,000 at auction. Looking ahead in the world of custom cars, where will a ThunderV12 powered car be placed in history? Wish you had bought that Cobra you saw in 1975 for $4,300? Will your custom car with a V8 Chevy be accepted to the high-end car auction? Probably not. What if you had built it around a ThunderV12?

Collectability takes insight. Time is limited. The time is now.

Call Us Today!

ThunderV12, llc is the leader and simply the best.

No one can sell you a better GMC V12 engine.

Prices start at $10,900 for stock rebuilt longblocks.

Engines are in stock! ready for pickup or delivery.

Custom built engine reserve for 25% down.

Click here for pricing page.

Call for next available engine schedule.

A baby Merlin? The GMC is a full foot shorter in height than the Rolls 1650. This becomes important when the time comes to see out the windshield!

Want to do some fun browsing? Check out our links page!

Just when you think you have seen it all, skip the 32 Fords or T Buckets with ThunderV12's. Check this out. A sandwich construction carbon fiber 1931 Bugatti Royale Kellner Coupe powered with a ThunderV12. Ed Murmillo is taking orders. Contact Ed at 757 226 7500

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