1974 Indianapolis 500 Explained

Race Name:58th Indianapolis 500
Race Logo:Indianapolis Motor Speedway Museum in 2017 - Racecars 06.jpg
Sanction:USAC
Season:1974 USAC Trail
Team:McLaren
Date:May 26, 1974
Winner:Johnny Rutherford
Mph:158.589mi/h
Pole:A. J. Foyt
Pole Speed:191.632mi/h
Fast Time:A. J. Foyt
Rookie:Pancho Carter
Leader:Johnny Rutherford (122)
Anthem:Purdue Band
Back Home:Jim Nabors
Start Engines:Tony Hulman
Pace Car:Hurst/Olds Cutlass
Pace Driver:Jim Rathmann
Starter:Pat Vidan[1]
Attendance:275,000[2]
Network:ABC
Announcers:Jim McKay and Sam Posey
Rating:16.4
Share:31
Previous:1973
Next:1975

The 58th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Sunday, May 26, 1974. Johnny Rutherford, in his eleventh attempt, won the race from the 25th starting position, the farthest back since Louis Meyer in 1936.[3] [4] It was the first of his three Indy victories, and started a three-year stretch where he finished 1st-2nd-1st.

The race was run relatively clean, with no major crashes or injuries, a sharp contrast from the tragic 1973 event. In order to increase safety, significant improvements were made to the track and cars.[4] Wings were reduced in size, fuel tank capacity was reduced, and pop-off valves were added to the turbocharger plenums in order to reduce horsepower and curtail speeds.

For the first time in Indy history, the race was scheduled for the Sunday of Memorial Day weekend. This ended the "never on a Sunday" policy previously held from 1911 to 1973. At the time, it was also the earliest calendar date (May 26) that the race had ever been held. With the implementation of the Uniform Monday Holiday Act in 1971, the holiday was now observed on the last Monday of May (25–31), creating a three-day weekend (Saturday–Monday) every year.

On race day, A. J. Foyt broke the all-time record for most career starts at Indianapolis. The 1974 race was his 17th Indy 500 start (all consecutive), breaking the record of 16 previously held by Cliff Bergere and Chet Miller.[5] Foyt would go on to start a total of 35 consecutive races (1958–1992), and as of 2024, still holds the record for most starts.

Race schedule

The race was run in the wake of the energy crisis, which precipitated several changes to the schedule. During the offseason, government officials were pressuring sports and recreational organizations to curtail their energy consumption.[6] Track management did not want to shorten the traditional 500-mile race distance, but agreed to voluntarily curtail other track activities. In the first half of 1974, NASCAR decided to trim all of their race distances by 10%, as well as scale back practice and ancillary events. Earlier in the year, the Daytona 500 was notably trimmed by 20 laps (the race officially started on lap 21), and the race ran a distance of only 450 miles.[7] Furthermore, the 24 Hours of Daytona and 12 Hours of Sebring were canceled outright.

USAC opted to cut a week of practice out of the schedule for the Indy 500. Previously, the track would open for practice on May 1 (or as early as the Saturday before May 1). For 1974, the track opened three weeks before the race. Time trials were cut back from four days to two. Pole day would be held on the Saturday two weeks before the race, and Bump Day would be held on the Saturday one week before the race.

In addition, the track would begin opening on practice days around 12 noon, rather than the previous 9 a.m.[8] Normally, the first few hours of practice were quiet and leisurely with few cars taking advantage of the track time. Thus they were deemed superfluous and excessive on resources and operating costs. This change was also introduced because it made logical sense to have drivers practicing on the track at the same time of day as they would be running in time trials and the race itself (theoretically it would better mimic the conditions encountered on those days).

The reduced on-track time was seen as a way to reduce overall fuel consumption – fewer days that fans would drive their cars to the track – but a mostly insignificant reduction of the actual methanol fuel used by the race cars.

Race schedule – May, 1974
SunMonTueWedThuFriSat

 

 

 
1
 
2
 
3
 
4
 
5
 
6
Opening Day
7
Practice
8
Practice
9
Practice
10
Practice
11
Pole Day
12
Practice
13
Practice
14
Practice
15
Practice
16
Practice
17
Practice
18
Bump Day
19
 
20
 
21
 
22
 
23
Carb Day
24
 
25
Parade
26
Indy 500
27
Memorial Day
28
 
29
 
30
 
31
 

 
ColorNotes
GreenPractice
Dark BlueTime trials
SilverRace day
RedRained out*|-| Blank| No track activity|}* Includes days where track
activity was significantly
limited due to rain

Background

Safety improvements

After the tragic 1973 race, several changes were made to the course, as well as the car rules. The pit lane was widened, and lengthened to the north by about 400 feet. In addition, the inside wall from turn 4 to the pit entrance, which had played a part in the fatal 1973 crash that killed Swede Savage and the 1964 crash that killed Dave MacDonald and Eddie Sachs, was moved in, which allowed cars to have a much easier entrance into the pit lane as asphalt replaced grass in that area. The heights of the inside and outside retaining walls were also raised and set at a uniform height, a second safety fence was added to the existing fencing throughout, and several rows of trackside seats on the main straightaway were removed.[9]

Also part of the improvements were a new flagstand and officials' booth. Tom Binford, the new chief steward for 1974,[10] requested the construction of an elevated booth, to be located on the outside of the track at the start/finish line.[11] [12] The flagging duties were moved to the new perch. Previously they were done from a small trackside platform on the inside grass along the pit lane, and prior to that, on the race track itself. Though flagman Pat Vidan did not particularly like the confines of the new flagstand (it constricted his grandiose waving style), the officials preferred their improved view of the track and the isolation the booth provided (previously the officials were stationed on the pit lane, in full ear of the often confrontational participants[13]).

Just three days after the 1973 race, USAC held an urgent meeting to draft emergency rule changes in time for the Pocono 500. Rear wings were reduced in size from 64 inches to 55 inches. On-board fuel capacity was reduced from 70usgal down to 40usgal, and fuel tanks were only allowed on the left side of the car, with the exception of a 2 gallon pick-up tank. An energy-absorbing material was to be placed in the spot formerly occupied by the right-side tank, and total fuel allotment for the 500 miles was reduced from 375 to 340 gallons.[14] By May 1974, the rules were changed once more, further reducing the total fuel allotment to 280 gallons,[15] and rear wings down to 43 inches.[16]

Three Time Formula One World Champion Jackie Stewart who was reporting for ABC Sports filmed a piece on improved safety and he said "The cars wishing to enter the pitlane should continue though turn four low on the racetrack on the new black surface. I don't much like the idea of the infield to be used by emergency equipment to go in the opposite direction of the race cars themselves but of course these are ambulances and wreckers so it may have to happen. The pit lane has been extended by a full one and a half football fields in length, it's demarcation point is this structure. Now this I disapprove of because if a race car hit's this, it's going to be a horrible accident and I think it's unnecessary. The new pit lane operation however I think is going to be considerably safer and considerably better then what we ever seen at Indianapolis before." Stewart then question Binford about the changes saying "I think they are two benefits that I could think of off hand, one of is that we can bring the pace car off sooner then [sic] we were able to do in the past, out and away from the field in the fourth turn."

During time trials, all cars were required to carry a pop-off valve to control turbocharger "boost." Maximum boost levels were set at 80 inHG. The reduction of boost, reduction of wing sizes, and other technical changes lowered speeds by about 8–10 mph from 1973. As a result, top speeds would be around 190 mph, and the elusive 200 mph barrier would be out-of-reach for 1974.

Rule changes

In response to the fatal accident of pit crew member Armando Teran in 1973, safety trucks were prohibited from driving on the racing surface in the opposite direction of the racing cars. Teran was struck by a fire truck rushing to the scene of Swede Savage's accident.[17]

During time trials, a new safety rule was put into place to convey to the officials the start of a qualifying attempt.[18] When a driver was on his three warm-up laps, a crew member(s) from his team was now stationed at the north end of the mainstretch, and provided with two flags (green and yellow). When the car came around after the third and final warm-up lap, the crew member was instructed to wave a green flag in the air to signify the driver will begin the run. If the crew waves a yellow flag, or waves no flag, the run does not start, the car returns to the pits, and the attempt does not count. As in previous years, each car was still permitted up to three official qualifying attempts.

Previously, the driver himself would make the decision on whether to start the qualifying run. He would do so by raising his hand in the air as he approached the start/finish line. Due to the significantly rising speeds, and the awkwardness of doing so in the increasingly confined cockpits, this practice was abandoned. For instance, during qualifying in 1970, Lloyd Ruby raised his hand to make his attempt, but officials did not see it, and inadvertently waved him off. After he persuaded the officials for a do-over, he burned a piston.[19] It was also in the interest of safety, reflecting upon an incident that involved Bobby Grim during the 1959 race. Grim suffered magneto failure and began coasting to the pits. As was customary for drivers of the time, he raised his arm to signify to the other drivers he had lost power. However, due to the high speed he was still traveling, he painfully dislocated his arm in the process.[20]

This new arrangement also made it simpler for the crew to "wave off" an unsatisfactory attempt already in progress. At any time during the four-lap run, if the crew was dissatisfied with the performance, they could wave a yellow flag, and officials would immediately abort the run. Crews could now wave off a run without needing input from, or conveying the message to, the driver out on the track. Previously the only way to wave off a run was to pull into the pits. Typically, crew members would use hand-held stopwatches and clock their car from a reference point in turn four. That would give them enough time to estimate their forthcoming lap time, and decide whether to abort the run before the car crossed the start/finish line. Furthermore, the rules made it clear that the instant the yellow flag was waved by the crew, the run was aborted, irrespective of the position of the car out on the track. If the car continued down the mainstretch, it would not matter if he/she proceeded to cross the finish line. Previously, if a car physically crossed the finish line, the run counted and was locked in, even if the team was intending to wave off the run. That situation made for some precarious maneuvers to the pit lane or to cars stopping out on the track to avoid crossing the finish line and 'locking in' the undesirable qualifying time.

Departure of Firestone

The 1974 race would be the last, temporarily, for Firestone, who dropped out of Indy car competition effective at the end of the season. Firestone had been a fixture at the Indianapolis 500 dating back to 1911. Firestone-shod cars had won the Indianapolis 500 a total of 48 times to date, including the first race and 43 consecutive from 1920 to 1966. By the mid-1960s, Goodyear had joined the sport, and began a fiercely-competitive "tire war". Firestone had not won the 500 since Al Unser won back-to-back in 1970-1971. Starting in 1975, Goodyear became the lone tire supplier for Championship Car racing and the Indy 500 - an arrangement that would continue through 1994. Firestone made a heralded return to Indy car competition in 1995,[21] and eventually became the exclusive tire supplier starting in 2000.

Time trials

Due to the ongoing energy crisis, qualifying was scheduled for two days (Saturday May 11 and Saturday May 18), down from the traditional four days. Each day was slated to have two separate sessions, an "early" session from 11:00 a.m. to 2:30 p.m., followed by a "late" session from 2:30 p.m. to 6:00 p.m. The four total sessions were intended to mimic the traditional four days. The pole position was to be the fastest driver during the "early" session on the first day (May 11). New chief steward Tom Binford was adamant that he was preparing to have the gun fire at exactly 2:30 p.m. to close the pole round. However, several observers noted that the 3 hours scheduled for pole round would not be enough time to make it through the entire qualifying draw (at least 46 cars). As a result, most expected the session to be extended at least until the original draw order exhausted. Qualifiers from the "late" session on May 11 would line up behind the qualifiers from the "early" session, followed by the "early" and "late" session qualifiers on May 18.[22] [23]

Rain, however, threw a wrench into the entire plan on both days. Pole qualifying ended up stretching into the second day. Once the pole round was finally completed, seconds day qualifying commenced. The four sessions plan was ultimately scrapped.

First Day - May 11

Pole qualifying was scheduled for the "early" session of Saturday May 11. A. J. Foyt drew the first spot in the qualifying order, and was the first car to make an attempt when the track opened at 11 a.m. His four-lap speed of 191.632 mph placed him tentatively on the pole position.

Wally Dallenbach completed a run of 189.683 mph, which put him in second starting position. His car featured a controversial "king sized" turbocharger, which some competitors complained was too large to be controlled by the standard issue pop-off valves. Ultimately, Dallenbach's blower was deemed legal, but USAC ruled that the team had to use the same turbo in the race. They would not be allowed to swap it out for the more fuel-conservative smaller turbo on race day.

At 12:25 p.m. rain halted qualifying. Only nine cars had completed an attempt.

At 3:35 p.m., the track was dried, and qualifying resumed. Five more cars were able to take to the track, but rain returned, and the track was closed for the day at 4:20 p.m. The field was only filled to 15 cars, and several drivers, including Mario Andretti and Gordon Johncock were still in line and eligible for the pole. Al Unser and Johnny Rutherford, however, both suffered blown engines during the morning practice session. Both teams made engine changes, but USAC declared them ineligible for the pole round since they were not in line at the stroke of 11 o'clock. Unser and Rutherford, both angered by the ruling, were forced to forfeit their respective spots in the qualifying line. Both would have to be second-day qualifiers.

Second Day - May 18

The track opened to continue time trials on Saturday May 18. Eleven cars were still eligible for the pole position round. Gordon Johncock was the first driver out, and he completed a run of 186.287 mph. The next car out was Mike Hiss, who qualified third at 187.490 mph. Mario Andretti was the last driver who was a factor for the pole, but he ended up fifth. At 12:30 p.m., the pole round was officially over, with A. J. Foyt holding on to the pole position. The field officially was filled to 24 cars.

As soon as the pole round had concluded, the Second Day "early" session began. Rick Muther completed his run, filling the field to 25 cars. Bob Harkey was the next driver out, but rain began to fall during his warm-up lap. The track was closed for over three hours. Officials deemed Muther the lone second day "early" qualifier.

At 4:20 p.m., the track was dried and re-opened for the Second Day "late" session. ump Day time trials. Harkey was re-dispatched, and became the 26th qualifier. Johnny Rutherford, who missed out on the pole round, qualified at 190.446 mph, the second-fastest car in the field. Since he was a second day qualifier, however, he was forced to line up behind the first-day qualifiers. Al Unser, also shut out from the pole round, completed a solid run at 183.889 mph.

A long line of cars stretched down the pit lane for the final hour. Numerous cars had not yet had an opportunity to make their guaranteed qualifying attempt, and time was running out. Rumors were circulating up and down pit lane that USAC might extend qualifying beyond the original 6 p.m. deadline. With fifteen minutes left in the day, the field was finally filled to 33 cars. Johnny Parsons - who controversially got out for a second qualifying attempt before other cars had been able to make their first attempt - bumped Jigger Sirois out of the field with nine minutes left. The final car to make an attempt was rookie Jan Opperman, who qualified for the 32nd position, bumping Denny Zimmerman. Sammy Sessions and others were left waiting in line at the 6 o'clock gun. USAC officials refused to extend time trials, claiming that the qualifying line had been "broken" by Parsons, and thus time trials was over.

A protest (and later a civil suit) was filed by owners representing nine cars that were not able to make an attempt. The controversy dragged on throughout the week, but it was ultimately dismissed.

Starting grid

RowInsideMiddleOutside
1 14-A. J. Foyt 40-Wally Dallenbach Sr. 68-Mike Hiss
2 20-Gordon Johncock 5-Mario Andretti 98-Mike Mosley
3 48-Bobby Unser 24-Tom Sneva 73-David Hobbs
4 44-Dick Simon 8-Gary Bettenhausen 21-Jimmy Caruthers
5 82-George Snider 77-Salt Walther 60-Steve Krisiloff
6 4-Bill Vukovich II 55-Jerry Grant 9-Lloyd Ruby
7 42-Jerry Karl 18-Bill Simpson 11-Pancho Carter
8 89-John Martin 27-Tom Bigelow 61-Rick Muther
9 3-Johnny Rutherford 15-Al Unser 1-Roger McCluskey
10 56-Jim Hurtubise 94-Johnny Parsons 45-Jim McElreath
11 79-Bob Harkey 51-Jan Opperman 59-Larry Cannon

Alternates

Failed to Qualify

Race summary

Start

At the start, Wally Dallenbach blasted from the middle of the front row to take the lead into turn one. His aforementioned "king-sized" turbocharger was credited for the fast start, but its reliability was a source of considerable concern. Dallenbach set a new race record for one-lap of 191.408 mph on lap 2, as he pulled out to a sizable lead. The lead was short-lived, however, as Dallenbach broke a piston and coasted to a stop on lap 3. Attrition was very high early on, as eight cars dropped out with mechanical problems by lap 11. Mario Andretti and Gary Bettenhausen each broke a valve, and Mike Mosley blew an engine. Rick Muther pulled into the pits with problems during the pace lap, but rejoined the race, only to lose a piston after 11 laps.

A. J. Foyt took the lead when Dallenbach dropped out. Rutherford was charging dramatically from the 25th starting position. By lap 23, he was running third, and on lap 24, he passed Bobby Unser to take 2nd position.

First half

The top five consisted of Foyt, Rutherford, Bobby Unser, rookie Tom Sneva and Al Unser. By lap 45, Rutherford was driving very aggressively in traffic, and caught up to Foyt. The two cars ran nose-to-tail over the next several laps.

During the second sequence of pit stops around lap 50, teammates Gordon Johncock and Steve Krisiloff both ran out of fuel. They coasted back to the pits and lost considerable time on the track. Bobby Unser also ran out of fuel, and top of that, had a 39 second pit stop. On lap 62, the first caution came out when Larry Cannon stalled on the backstretch. Under the yellow, A. J. Foyt had a terrible pit stop of 53 seconds, which allowed Rutherford to take the lead for the first time on lap 65.

The green came out on lap 68, but only lasted three laps, as Jimmy Caruthers blew an engine, and dropped oil on the track. Five laps later, Pancho Carter lightly brushed the wall exiting turn four, but the car did not suffer significant damage.

On the next green flag pit stop around lap 90, Rutherford was on the receiving end of good luck. He ducked into the pits under green, but seconds later the caution came out for a spin by Jan Opperman, which allowed Rutherford to pit with little time lost.

Second half

Jerry Karl crashed in turn 3 after completing 115 laps. During the caution, Johnny Rutherford exited the pits right in front of second place A. J. Foyt, and held the lead. Seconds later, the green light came back on while the drivers were in the southchute. Foyt got the jump on the restart, and passed Rutherford for the lead in turn 2.

At lap 130, Foyt, Rutherford, and Bobby Unser were running 1st-2nd-3rd. Al Unser dropped out on lap 131 with a broken valve, bringing out the caution for a tow-in. Foyt ducked into the pits, and Rutherford was now the leader again.

On lap 138, the green light came back on. Foyt came through traffic and passed Rutherford for the lead down the mainstretch. A lap later though, Foyt's car began smoking, and he was issued the black flag due to leaking oil. After two pit stops, Foyt dropped out with a broken turbocharger scavenger pump.

Rutherford took over the lead on lap 141, and seemed to have the race in hand. Bobby Unser was the only other car on the lead lap, but was between 15-20 second behind. Rutherford had a close call in turn one while attempting to pass lap traffic. As he was lapping Pancho Carter and Jim McElreath, Carter spun right next to him in turn one. McElreath narrowly avoided him, and all three cars continued.

Rutherford gave up the lead only one more time on lap 176 during a pit stop. He led the final 24 laps to win his first Indianapolis 500. David Hobbs' 5th-place finish was the only top ten at Indianapolis for a foreign driver in the 1970s (except Andretti, who was born in Italy but was a naturalized U.S. citizen).

Immediately after the checkered flag was waved for Johnny Rutherford, a multitude of fans streamed onto the active track in turn 3. This forced the race steward to immediately halt the race, rather than give lapped drivers five extra minutes to complete the race distance[25] as had been the custom since 1964 (before 1964, the time allowed was even longer). The fan incursion caused the Indianapolis 500 race rules to be changed for 1975 and beyond, so that the winner crossing the line ends the race, and all competitors behind the race winner are allowed only to finish their current running lap under green.[26]

Box score

FinishStartNoNameChassisEngineTireQualLapsTime/Retired
1253 Johnny RutherfordMcLarenOffenhauser190.4462003:09:10.06
2748 Bobby Unser EagleOffenhauser185.176200+22.32
3164 Bill Vukovich IIEagleOffenhauser182.500199Flagged (-1 lap)
4420 Gordon Johncock EagleOffenhauser186.287198Flagged (-2 laps)
5973 David HobbsMcLarenOffenhauser184.833196Flagged (-4 laps)
63045 Jim McElreathEagleOffenhauser177.279194Flagged (-6 laps)
72111 Pancho Carter EagleOffenhauser180.605191Flagged (-9 laps)
83179 Bob HarkeyKenyonFoyt176.687189Flagged (-11 laps)
9189 Lloyd RubyEagleOffenhauser181.699187Out of fuel
101755 Jerry GrantEagleOffenhauser181.781175Flagged (-25 laps)
112289 John MartinMcLarenOffenhauser180.406169Flagged (-31 laps)
122327 Tom Bigelow VollstedtOffenhauser180.144166Flagged (-34 laps)
132018 Bill Simpson EagleOffenhauser181.041163Piston
14368 Mike HissMcLarenOffenhauser187.490158Flagged (-42 laps)
15114 A. J. Foyt CoyoteFoyt191.632142Oil Fitting
16271 Roger McCluskeyRileyOffenhauser181.004141Rear End
171477 Salt WaltherMcLarenOffenhauser183.927141Piston
182615 Al Unser EagleOffenhauser183.889131Valve
191942 Jerry KarlEagleOffenhauser181.452115Crash T3
20824 Tom Sneva KingfishOffenhauser185.14794Drive Gear
213251 Jan Opperman ParnelliOffenhauser176.18685Spun T4
221560 Steve KrisiloffEagleOffenhauser182.51972Clutch
231221 Jimmy CaruthersEagleOffenhauser184.04964Gearbox
243359 Larry Cannon EagleOffenhauser173.96349Differential
252856 Jim HurtubiseEagleOffenhauser180.28831Blown Engine
262994 Johnny Parsons FinleyOffenhauser180.25218Turbocharger
272461 Rick MutherCoyoteFoyt179.99111Piston
281382 George SniderAtlantaFoyt183.9937Valve
29698 Mike MosleyEagleOffenhauser185.3196Blown Engine
30240 Wally Dallenbach Sr.EagleOffenhauser189.6833Piston
3155 Mario Andretti EagleOffenhauser186.0272Valve
32118 Gary BettenhausenMcLarenOffenhauser184.4932Valve
331044 Dick SimonEagleFoyt184.5021Valve

Former Indianapolis 500 winner

Indianapolis 500 Rookie

Race statistics

Lap Leaders
LapsLeader
1–2 Wally Dallenbach
3–24 A. J. Foyt
25–26 Bobby Unser
27–49 A. J. Foyt
50–52 Bobby Unser
53–64 A. J. Foyt
65–125 Johnny Rutherford
126–135 A. J. Foyt
136–137 Johnny Rutherford
138–140 A. J. Foyt
141–175 Johnny Rutherford
176 Bobby Unser
177–200 Johnny Rutherford
Total laps led
DriverLaps
122
70
6
2

Notes and References

  1. Book: Fox, Jack C.. The Illustrated History of the Indianapolis 500 1911-1994. Carl Hungness Publishing. 4th. 1994. 22. en. 0-915088-05-3.
  2. News: Leads 122 Laps To Garner Prize of $200,000-Plus. Ray. Marquette. The Indianapolis Star. 9. Newspapers.com. May 27, 1974. June 2, 2017.
  3. News: Rutherford hits jackpot . Eugene Register-Guard . (Oregon) . Associated Press. May 27, 1974 . 1B.
  4. Start in back and attack . Sports Illustrated . Jones . Robert F. . Robert F. Jones . June 3, 1974 . 16.
  5. The Talk of Gasoline Alley. Donald Davidson (historian). Network Indiana. May 19, 2006.
  6. News: Daytona 500 Cut To Daytona 450. Lakeland Ledger. 1974-01-09. 2013-10-17.
  7. News: Yarborough Returns To Win Column. Reading Eagle. 1974-02-15. 2013-10-17.
  8. The Talk of Gasoline Alley. Donald Davidson (historian). WFNI. May 4, 2010.
  9. Book: Popely. Rick, with L. Spencer Riggs. Indianapolis 500 Chronicle. 1998. Publications International, Ltd.. Lincolnwood, IL. 234.
  10. The Talk of Gasoline Alley. Donald Davidson (historian). Network Indiana. May 14, 2007.
  11. The Talk of Gasoline Alley. Donald Davidson (historian). WFNI. August 26, 2008.
  12. The Talk of Gasoline Alley. Donald Davidson (historian). WFNI. May 16, 2010.
  13. The Talk of Gasoline Alley. Donald Davidson (historian). WFNI. May 27, 2010.
  14. News: USAC Moves Quickly In Quest For Safety. Curt. Cavin. The Indianapolis Star. 1. Newspapers.com. May 30, 1995. August 9, 2018.
  15. News: Bignotti Sees Foyt Engine Giving A.J. Edge In Trials. George. Moore. The Indianapolis Star. 52. Newspapers.com. May 2, 1974. November 8, 2018.
  16. News: Reducing Wing Calls For Feel In The Cockpit. The Indianapolis Star. 52. Newspapers.com. May 25, 1974. November 8, 2018.
  17. Book: Dorson, Ron. Indy 500 An American Institution Under Fire . Bond/Parkhurst Books. 1974. 200–201. 0-87880-025-5.
  18. The Talk of Gasoline Alley. Donald Davidson (historian). WFNI. May 17, 2011.
  19. News: Revson Leads Pack; Ruby Engines 'Blow'. Ray. Marquette. The Indianapolis Star. 1. Newspapers.com. May 18, 1970. May 31, 2018.
  20. The Talk of Gasoline Alley - 1070-AM WIBC, May 9, 2007
  21. News: Firestone Returns With Front-Row View. The New York Times. Joe. Siano. May 26, 1995. July 23, 2014.
  22. News: Foyt Leads Race For The Pole (Part 1). Ray. Marquette. The Indianapolis Star. 1. Newspapers.com. May 11, 1974. October 17, 2019.
  23. News: Foyt Leads Race For The Pole (Part 2). Ray. Marquette. The Indianapolis Star. 7. Newspapers.com. May 11, 1974. October 17, 2019.
  24. Web site: 1974 International 500 Mile Sweepstakes. ChampCarStats.com. 27 June 2015.
  25. News: Rutherford's 11th Try Wins 500. Marquette. Ray. May 27, 1974. Newspapers.com. 2017-07-23. 1. en.
  26. Web site: The Fastest 500s (Part 1). doctorindy500. 2015-10-28. JI500. 2017-07-23.
  27. News: Yellow Light Times. Indianapolis News. 26. Newspapers.com. May 27, 1974. August 20, 2024.
  28. News: Race Scorecard. The Indianapolis Star. 1. Newspapers.com. May 26, 1974. August 14, 2024.
  29. News: Two Rookies Join Pros For Broadcast Of Race. The Indianapolis Star. 52. Newspapers.com. May 25, 1974. November 8, 2018.
  30. https://www.youtube.com/watch?v=qz_OQE1PJuE 1974 Indianapolis 500 | Full-Race Broadcast 1080p - YouTube