Huddleston Performance Magnum OHV 7.90 Arrives, First Batch Fired and Nearly Ready to Ship

(FAQ Section and Additional Information Added. 2/27/2025)

The word has been out some time about the Huddleston Performance Magnum OHV 7.90, but the official first batch is now complete and nearly ready to head to their new homes. This marks a historic day in the Jr. Dragster world, as Huddleston Performance continues to lead the Jr. Industry into the future.

NHRA LEGAL

The Huddleston Performance Magnum OHV 7.90 isn't just about introducing Jr. Dragster's to a different power plant, it is about continuing to offer our Racers the best option to go win races. The overhead platform helps to level the playing field between all kinds of Jr. Racer. The significantly increased tuning window allows Racers of every skill level to have a chance at winning. In testing, we have run vastly different tune ups and combinations on the HP Magnum OHV 7.90, all resulting in clean consistent passes. To show just how wide the range is, we have run anywhere from 7.30's to 7.90's simply by changing the combination on the engine itself, no weight adjustments to the car. The Huddleston Performance Magnum OHV 7.90 is the future for all Jr. Racers, whether you're 400lbs or 550lbs.

NHRA LEGAL

The Huddleston Performance Magnum OHV 7.90 isn't just a Flathead stuck into an OHV package, this is a ground up build with a lot of new stuff to make these the best Jr. Dragster Engines. First is the inclusion of our HP Ultimate Series of parts, our 1 1/8" HP Crankshaft is in every HP Magnum OHV 7.90 but these are even stronger by featuring a splined output. Our Ultimate Rods, HP Large Cam Gears, and 11/32" Lifters all make this combo the stoutest in the industry, while still taking 20 ounces of oil. On top you'll see a Billet Cylinder head, incorporating Titanium Valves/Billet Rollers Rockers/Monster Push Rods. To top it off, improved layouts within the block itself make the Huddleston Performance Magnum OHV 7.90 fit your Jr. Dragster much better than most any other OHV design out there.

 NHRA LEGAL

The first batch of Huddleston Performance Magnum OHV 7.90's is heading out to their new homes very soon, as the entire first batch sold out before completion. However, in Huddleston Performance fashion, we had the foresight to aim higher than just the initial batch. That said, we have a few additional HP Magnum OHV 7.90's that can be headed your way in fairly short order. The next few customers won't have much wait time at all on them. Also, for those of you who might be interested in the HP Magnum OHV, but you're in the 8.90 ranks, we have you covered too. Coming soon in 2025 is the Huddleston Performance Magnum OHV 8.90. We already have some pre-ordered by customers, and are taking deposits now. If this sounds like you, give us a shout for full details on the new project.

NHRA LEGAL

Huddleston Performance is excited to usher in the future of Jr. Drag Racing starting now. We have spent years leading the Flathead Market, which we will continue to do, but it is time for Jr. Drag Racing to step into the 21st century. The Huddleston Performance Magnum OHV 7.90 does just that, giving you a better product and better race ability all in one package. Call today to get yours on order.

Price : $7,500

Frequently Asked Questions and General Information

1. How Huddleston Performance uses Facebook and other Social Media Platforms.

The HP Social Media accounts, and online presence in general, is about disseminating information to our customer base. We do not use these outlets in a  conversational setting. We have found over the years, those serious about our products call us to get the knowledge they need. That being said, these tools will continue to be used in an informative way to give you the latest and greatest. If you need to dive deeper into a given topic, we invite you to call us at 931-437-2457 for any details you may need.

2. How big are the new Huddleston Performance Magnum OHV's?

We see this question quite a bit on the Huddleston Performance Social Media accounts. Here's the detailed breakdown of each, including both Bore/Stroke sizes for our Jr. Dragster Racers and then CC sizes for our Mini Bike and Go Kart Racers. There are currently 3 different sizes of the HP Magnum OHV, either already in production or well underway and coming soon.

The first size is for our 8.90 Jr. Dragster Racer, and will also serve a good portion of other arenas, as it is the smallest version of the Huddleston Performance Magnum OHV. These Engines come in at 347cc's, which is a 3" Bore by 3" Stroke. This size, paired with the increased efficiency of the OHV design, is going to make these a great option for the 8.90 Racer. Still allowing them to run the HP known "High MPH" tune-up, with the increased tunability and ease of racing that comes with the OHV platform. These are in production, with a delivery time of Summer 2025 expected. Pre-Orders have begun and many of the first batch are already spoken for.

The second size is the version you have seen taking the Jr. Dragster World by storm the past few weeks. It is our HP 7.90 Magnum OHV, and it is a powerful piece. These motors come in at 472cc's, with that making the Bore 3.5" and Stroke 3". This is the combination you have seen us personally go 7.30's at 460 lbs with recently. This combination can be done a number of ways to fit your needs. Small driver, we can turn them back some for less weight. Large driver, we can increase the horsepower output to carry your combo. All of this can be done with little to no cost to the Racer. This size is going to be the most versatile for use in many situations. The first batch of 10 of these have already been completed and headed out to the customers, the second batch of 10 blocks already exists and are coming together currently. Many of those are already pre-sold, but we do still have some available at the moment.

The third size is currently in the development stage, and it will be an absolute monster. It is our 540cc, 3.75" Bore by 3" Stroke, HP Magnum OHV. This motor is going to be capable of running WELL into the 6 second range, and will do it with sizeable drivers. Increased cubic inch, increased capacity within the cylinder head, while still maintaining the easier tuning of the OHV combination. In today's world of extremely heavy rolling chassis, we think this one will have a nice home with some. It will also serve we for those with the "I want the baddest thing" mentality, well here it is! The first of this combination will be buttoned up in the next few weeks, with testing to follow.

3. How many runs will the new HP Magnum OHV make between Freshen Ups?

This question requires slightly more answer than a simple number. While many in the Jr. Dragster Industry are happy to talk in theoreticals, we simply don't do business that way. We establish the product, we test the product, we find its limits, and then we pass that information on to the customer.

That said, the EXPECTATION is for these to get the same 200 runs as our Flathead product line-up. However, every customer in the first batch that has begun heading out, has agreed to send their combinations in around 75 runs for inspection. This allows us to read the parts well, and establish with certainty just how many runs we expect these motors to make between freshen ups. Seeing as the first batch has already begun leaving, we expect to be able to solidify the exact run counts within the first few months of the 2025 season.

4. How much do the new HP Magnum OHV's cost?

The Huddleston Performance Magnum OHV will follow similar price structures as our Flatheads, with the numbers simply adjusted to fit these new pieces. While the HP Magnum OHV 7.90 price has already been establish, below you will see the Target Prices or Actual Prices for each combo:

HP 8.90 Magnum OHV - $6,500 Target Price (Exact Pricing Coming Summer 2025)

HP 7.90 Magnum OHV - $7,500

HP 6.90 Magnum OHV - Price TBD Upon Completion (Will be more than 7.90 Combo)

5. How physically big is the new HP Magnum OHV?

For our Jr. Dragster Racers, the size of the Huddleston Performance Magnum OHV is going to be similar to what you're use to seeing in the Flatheads. Things will be moved in different locations, but overall the sizes aren't drastically different. The biggest thing you will see when comparing to other OHV's out there, the Magnum OHV was specifically designed for Jr. Racing. Meaning, things simply fit on your car better, and will race great for you!

For our Mini Bike, Go Kart, and other arenas, the HP Magnum OHV might look gigantic to you. If you're in the Clone/Animal arena, this thing eats those in size. That doesn't mean you can't use the HP Magnum OHV for your purposes, we will just need to discuss your combo to see how it will work.

Huddleston Performance Engines

The Huddleston Performance Sniper Series Engine line-up was created to win. Whether you're looking to win Races or Championships, we can help you at every step of the way. Not only do you receive winning combinations with our Huddleston Performance product, but you gain access to a knowledge base that is nearly impossible to recreate in your relatively short Jr. Dragster career. Regardless of your level of experience, we fill in the gaps to help you win and do so in short order.

Our 11.90 Magnum Series Engine is the perfect starter Engine. An inexpensive, yet well built, alcohol burning Jr. Dragster Engine, it is intended to help you learn the ropes without breaking the bank! Next is our HP 8.90 Sniper Jr. and HP 8.90 Sniper Jr. Ultimate Series of Engine, these are the best components available in Jr. Racing. These Engines, along with our HP Knowledge, can make you a Championship Contender regardless of your experience level. To finish out your Jr. Career is our HP 7.90 Sniper Lite and HP 7.90 Sniper Lite Ultimate. These combinations set the standard in 7.90 racing, with the most heavy duty components available.

Also, for those of you who don't run HP Product, can't quite make the switch yet, but want the highest standard in the industry working on your Engine, we at Huddleston Performance freshen and maintain most all major brands of Jr. Dragster Engine in the market today. From repair to simple maintenance between seasons, we can take care of you and your already existing package as much as we do our HP Combos!

We work hard to keep Engine Packages in stock and ready for immediate shipment. While this isn't always the case in today's world, it is rare that we have long lead times on any of our HP Combinations. We don't suggest waiting until the last minute to order your stuff, but if you do, our in stock product can help save the day a lot of times! For full details on our various combinations, check out the links above and below!

13.90 Magnum          11.90 Magnum          9 Second Magnum         

8.90 Sniper Jr.          8.90 Sniper Jr. Ultimate          7.90 Sniper Lite          7.90 Sniper Lite Ultimate

7.90 Magnum OHV