| series | Champcar complete |
| race | Langhorne |
| year | 1966 |
| team | car | entry | driver | start | finish | chassis | engine | laps led | * | |
| Dean Racing | 1 | Dean Van Lines | Mario Andretti | | 1 | 1 | Hawk I [65-1] | Ford DOHC | 100 | |
| John Zink | 3 | Zink-Urschel-Slick | Jim McElreath | | 11 | 2 | Moore BT12 | Ford DOHC | ||
| All American Racers | 6 | Yamaha | Joe Leonard | | 4 | 3 | Eagle 66 [202] | Ford DOHC | ||
| Leader Card | 4 | Leader Card | Don Branson | | 2 | 4 | Watson 59 D [3] | Offy 252 | ||
| Jim Robbins | 27 | Jim Robbins | Billy Foster | | 10 | 5 | Vollstedt 66 [8] | Ford DOHC | ||
| Lindsey Hopkins | 8 | G.C. Murphy | Roger McCluskey | | 5 | 6 | Eagle 66 [205] | Ford DOHC | ||
| Peter Salemi | 81 | Central Excavating | Bob Harkey | | 12 | 7 | Gerhardt 65 [003] | Offy 252 | ||
| Myron Caves | 85 | Caves Buick | Arnie Knepper | | 18 | 8 | Gerhardt 66 [c] | Offy 168 sc | ||
| Mecom Racing | 24 | American Red Ball | Al Unser | | 8 | 9 | Lola T90 [SL-90-03] | Ford DOHC | ||
| Dayton-Walther | 25 | Dayton-Walther | Carl Williams | | 20 | 10 | Watson 62 FE [1] | Offy 252 | ||
| Ken Brenn | 24 | Ken Brenn | Larry Dickson | | 14 | 11 | Meskowski 62 D [9] | Offy 252 | ||
| Leader Card | 12 | Wynn's | Chuck Hulse | | 19 | 12 | Watson 66 [1] | Ford DOHC | ||
| J Frank Harrison | 96 | J Frank Harrison | Ronnie Duman | | 21 | 13 | Eisert 65 [2] | Chevy 305 V8 | ||
| Gordon Van Liew | 7 | Vita Fresh | Bobby Unser | | 16 | 14 | Huffaker 66 [a] | Offy 168 sc | ||
| Federal Engineering | 40 | Federal Engineering | Sam Sessions | | 9 | 15 | Trevis 63 FE [6] | Offy 252 | ||
| Viking Racing | 36 | Viking Racing | Bob Hurt | | 22 | 16 | Gerhardt 66 [f] | Offy 252 | ||
| Barnett Bros. | 55 | Barnett Bros. | Jim Hurtubise | | 6 | 17 | Kuzma 63 FE [13] | Offy 252 | ||
| Federal Engineering | 22 | Federal Engineering | Bud Tingelstad | | 13 | 18 | Gerhardt 66 [h] | Offy 168 sc | ||
| W & W Enterprises | 72 | Weinberger Homes | Gordon Johncock | | 7 | 19 | Gerhardt 66 [i] | Ford DOHC | ||
| Vatis Enterprises | 54 | Valvoline | Gary Congdon | | 3 | 20 | Huffaker 64 [b] | Offy 252 | ||
| AJ Foyt | 82 | Sheraton-Thompson | George Snider | | 15 | 21 | Lotus 34 [2] | Ford DOHC | ||
| G.C.R. | 76 | G.C.R. | Art Pollard | | 17 | 22 | Gerhardt 66 [002] | Offy 168 sc | ||
| George O Reves | 68 | Western Racing Associates | Bruce Jacobi | | DNS | Lola T80 [a] | Chevy 305 V8 | |||
| Karl Hall | 71 | Fairchild-Hiller | Gig Stephens | | DNS | Halibrand Shrike 65 [g] | Offy 252 | |||
| Mel Nelson | 58 | Mel Nelson | Dick Atkins | | DNS | Kuzma 60 D [11] | Offy 252 | |||
| Myron E Osborn | 49 | Ansen | Dick Fries | | DNS | Troutman-Barnes 64 [1] | Offy 252 | |||
| Richard Compton | 44 | Richard Compton | Bruce Jacobi | | DNS | Vollstedt 63 [6] | Offy 252 |
