
As the name implies, Mountain Motor Pro Stock cars are equipped with engines that are bigger than their 500-cid NHRA The National Hot Rod Association is a drag racing governing body, which sets rules in drag racing and hosts events all over the United States and Canada. With over 40,000 drivers in its rosters, the NHRA claims to be the largest motorsports sanctioning body in the world.National Hot Rod Association
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What is the rebuild process for a mountain motor Pro Stock engine?
Here captured in the following images with captions is the rebuilding process of a Mountain Motor Pro Stock engine. Pushrods are installed, WW billet rockers positioned, their shafts tightened to 35ft lb, and valve lash adjusted for engine warming on the dyno.
Is Harold Denton the first Mountain Motor Pro Stock champion?
Harold Denton has long since retired from Pro Stock racing but always had a penchant for being at the right place at the right time. That’s exactly what provided him with the opportunity to become the first driver to ever win an IHRA mountain motor Pro Stock national event title.
What is the cubic inch of a stock Mountain Motor?
Pro Stock Mountain Motors have cubic inch displacements of 820 to 825 and beyond. Their capacities began much smaller, deriving from original equipment big-block engines of the sixties.
How much horsepower does a Pro Stock Car have?
The Pro Stock class is now running about 1,300 horsepower. But the gains we made early on were huge. Our clutch knowledge wasn’t that strong but I think my team had an advantage in that area.

What is the difference between Pro Mod and Pro Stock?
The body of a Pro Modified car is somewhat similar to a Pro Stock race car, yet also radically different at the same time. Whereas Pro Stock cars retain street identification, Pro Modified cars' bodies are just that: modified.
What engines do Pro Stock use?
Shrouded in secrecy, Chevrolet's Pro Stock Drag Race Competition Engine (DRCE) evolved the big-block Chevy into a 1,400-hp, 10,000-rpm, naturally aspirated motorsport weapon one race weekend at a time.
How much does a NHRA Pro Stock engine cost?
$100,000A complete NHRA pro stock engine can cost upwards of $100,000.
What are Pro Stock cars?
Pro Stock engines use electronic fuel injection and spec gasoline and are restricted to a maximum of 500 cubic inches. They can make in excess of 1,300 horsepower. A competitive Pro Stock car can run in the 6.5s at more than 210 mph.
How much horsepower does a Pro Stock Motorcycle have?
1,500 horsepowerThe best-known form of motorcycle drag racing is the Pro Stock Bike category, although several other categories exist, including Top Fuel and Pro Street. Motorcycles in the Top Fuel category are fueled by nitro methane and can make nearly 1,500 horsepower.
Are there any Fords in NHRA Pro Stock?
In 2018, there were two. Fords were non-existent. Having a Chevrolet-dominated entry list is nothing new for NHRA; even as far back as the 1980 NHRA U.S. Nationals, 23 of the 36 cars entered in Pro Stock were Bowties.
How much horsepower does a Pro Mod Drag car have?
around 2600-3200 horsepowerA Pro Mod car will produce around 2600-3200 horsepower and the fastest will rundown in the 5 second zone. Each chassis is custom fabricated from 4130 chrome moly tubing according to strict rules. The maximum permitted wheelbase is 115" (2.92m).
How much HP does a NHRA Funny Car have?
One cylinder of the eight cylinders of a Top Fuel dragster or a Funny Car produces 750 horsepower, equalling the entire horsepower output of a NASCAR engine! … The gasoline-powered engines of NHRA Pro Stock cars produce about 1,200 horsepower; about eight times that of the average street car!
How much does a NHRA Pro Mod cost?
$275,000 to $350,000That said, a pro mod drag car will cost from $275,000 to $350,000. The body and internal parts generally cost around $200,000, while the engine costs between $50,000-$100,000 extra.
How much does a Pro Stock car cost?
A pro stocker at 125k+ has to be the most expensive car to build. 1 motor has to be in the 150k+ range as well. A guess the only thing that would make a fueler more expensive to run is the parts attrition.
Are Pro Stock cars fuel injected?
Pro Stock racing is part of the professional triumvirate of NHRA drag racing, and in 2016, fuel injection was mandated for the first time.
Do Pro Stock cars have clutches?
In a Pro Stock or Pro Mod style clutch, also known as a pedal clutch, releasing the clutch pedal pushes the throw out bearing in.
What does a mountain motor stock car look like?
They look a bit like traditional NHRA Pro Stock cars and there is also a bit of a resemblance to some of the cars in the E3 Spark Plugs Pro Mod series. There’s a good reason for that because the Mountain Motor Pro Stock cars that participated in a special exhibition race in Houston borrow a bit of technology from both classes. As the name implies, Mountain Motor Pro Stock cars are equipped with engines that are bigger than their 500-cid NHRA counterparts.
How big is the engine in the Houston race?
The ten drivers who participated in the Houston race were using engines that ranged from 818 to 840-cid. That’s correct, the smallest engine in the field was more than 300-inches bigger than the legal limit for NHRA-style cars. The Mountain Motor cars also have the option of using either electronic fuel injection or carburetors and for fans who remember “the good old days” there are still fitted with bulbous hood scoops. As for performance, the Mountain Motor cars tend to be about three-tenths of a second quicker than the 500-inch cars and they routinely run over 220-mph.
What is the smallest engine in the Houston race?
The ten drivers who participated in the Houston race were using engines that ranged from 818 to 840-cid. That’s correct, the smallest engine in the field was more than 300-inches bigger than the legal limit for NHRA-style cars.
How many Mountain Motor Pro stock classes are there?
There are now three series offering a Mountain Motor Pro Stock class. Do you think that helps or hurts the class?
How many cubic inches are mountain motors?
Engine development is kept to a minimum, with cubic inches ranging from 822 to 843 depending on the block type. Electronic fuel injection is allowed, though carburetors remain the class standard. Eighth-mile performances that were earth-shattering in the early 2010s remain on the list of the top 10 quickest passes in Mountain Motor Pro Stock history in 2021.
Who is John Montecalvo?
John Montecalvo is one of Mountain Motor Pro Stock’s biggest advocates, as well as one of its most accomplished drivers. He’s won world championships in IHRA Pro Stock (2009), ADRL Extreme Pro Stock (2010) and PDRA Extreme Pro Stock (2019), with event victories and records to go along with those titles.
Do Mountain Motor Pro Stock drivers have fill ins?
Teams have been known to field second cars at races to ensure a decent field, and drivers like John Montecalvo have even sent fill- in drivers to races they’re unable to personally attend.
Does Mountain Motor Car hurt?
Geographically, there’s guys that won’t travel some distances, so it does get them out and gets them and the Mountain Motor car some exposure. It hurts us because then the car count is down at other places. It’s kind of a 50 percent good, 50 percent bad thing.
How many Mountain Motor Pro Stock teams are there?
There are currently an estimated 28 Mountain Motor Pro Stock teams in existence (but not all are active) and Montecalvo says, if anything, the move to NHRA would promote greater participation among the big-inch racers.
Who is John Montecalvo?
John Montecalvo, one of the veteran members of the Mountain Motor fraternity and a former International Hot Rod Association Pro Stock champion, believes the NHRA and its Pro Stock teams are open to negotiating and developing a constructive plan to combine the two engine combinations and create a viable eliminator with greater options for all involved.
Who are the big yello racers?
Eight big-inch Pro Stock competitors, including John Montecalvo, Trevor Eman, Dwayne Rice, John Konigshofer, Dillon Voss, John DeFlorian, Brad Waddle, and Elijah Morton, participated in the class’ first-ever appearance at an NHRA Mello Yello Series national event, as part of what the NHRA has publicly disclosed as an exploratory initiative for potential integration into the traditional 500 cubic-inch Pro Stock program. The eight racers put down a series of 6.3- and 6.4-second laps at upwards of 220 mph on Saturday and Sunday at the sport’s most prestigious drag race, and the group says the response from the fans has been overwhelmingly positive.
Is Extreme Pro Stock a gentleman's agreement?
The Extreme Pro Stock competitors have, as a means of limiting costs for the sake of the health and viability of the class, collectively agreed over the last several years to curb engine development costs — a gentleman’s agreement, if you will — but their potential participation in the NHRA could well change all of that. That fact — the required costs to meet the NHRA’s regulations and that to be competitive — ranks among the group’s primary concerns.
Is Montecalvo supporting PDRA?
Montecalvo, Rice, and the DeFlorian camp shared in no uncertain terms that, regardless of the outcome of this weekend’s exhibition, they intend to continue supporting the PDRA, which has provided their brand of Pro Stock racing a professionally-run venue in which to compete over the last several years.
Who is the fastest stock racer in 2020?
By Andrew Wolf October 07, 2020. Pasco, Washington native JR Carr recorded the quickest and fastest run in the history of Mountain Motor Pro Stock racing Friday at the Mopar ExpressLane NHRA Midwest Nationals to lead the class into eliminations following rain-shortened qualifying.
Is Mountain Motor Pro Stock a 1/8 mile program?
The Mountain Motor Pro Stock division, once a staple of the International Hot Rod Association program, has in recent years largely become an 1/8- mile program under the Professional Drag Racers Association (PDRA) umbrella, affording competitors little in the way of opportunity to advance ...
