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Credits
“Porsche 917 in Le Mans 1970” by NilsHolgerson
   • Porsche 917 in Le Mans 1970  

“Porsche 917 History, The 4.5 Liter 12Cylinder Driven by Brian Redman” by ClassicSpeedParts
   • Porsche 917 History, The 4.5 Liter 12...  

“Mark Donohue Talladega Speed Record Porsche 91730” by nascarman History
   • Mark Donohue Talladega Speed Record ...  

“1971 Porsche 91710 racing at the Nürburgring 2022” by BelgianMotorsport
   • 1971 Porsche 91710 racing at the Nür...  

“1200BHP 1973 Porsche 917/30 REVVING HARD (Flame Spitting)” by Retroschaft
   • 1200BHP 1973 Porsche 917/30 REVVING H...  

“1970 Porsche 917K: Warm Up, Demonic Downshifts & RAW Flat12 Sound!” by 19Bozzy92
   • 1970 Porsche 917K: Warm Up, Demonic D...  

“917 Engine Display Porsche Museum” by BreitWerks
   • 917 Engine Display Porsche Museum  

“PORSCHE 91710 rewing up the engine” by ottocars
   • PORSCHE 91710 rewing up the engine  

“1970 A Year To Remember John Wyer's Gulf Porsche 917 team” by bjwhitegti
   • 1970  A Year To Remember  John Wyer...  

“Bruce Canepa & Porsche 917K Engine” by alexioflexio
   • Bruce Canepa & Porsche 917K Engine  

“The Porsche 917/30 Short Clip” by Vintage Motorsport
   • The Porsche 917/30  Short Clip  

“Porsche 917 engine ran on stand open header” by GOINGNOWHEREINLIFE
   • Porsche 917 engine ran on stand open ...  

“The Porsche 917/30 The Car That Killed CanAm: Ep 3 Series 3 Shannons Legends of Motorsport” by Shannons Insurance
   • The Porsche 917/30  The Car That Kil...  

“Porsche 917/30 Can Am 1000+HP Twin Turbo Flat12 Monster at Goodwood 2017!” by 19Bozzy92
   • Porsche 917/30 Can Am  1000+HP Twin ...  

“Porsche 917/30 Can Am Spyder / Mark Donohue (details + revving + racing)” by Luke Skywalker
   • Porsche 917/30 Can Am Spyder / Mark D...  

“Porsche 917/30 In Car Daytona Rennsport 2007” by dainstanthit
   • Porsche 917/30 In Car Daytona Rennspo...  

“Porsche 91730 driven by Brian Redman Goodwood 2011” by Porsche
   • Porsche 91730 driven by Brian Redman...  

“Porsche 917K Flat12 Pure Engine Sound In Action on Track” by 19Bozzy92
   • Porsche 917K Flat12 Pure Engine Soun...  

“917 engine starting 1st time in 30 years” by teamgunnar
   • 917 engine starting  1st time in 30 ...  

“Porsche 917/10001 flat12 engine (1972)“ by PETER AUTO
   • Porsche 917/10001 flat12 engine (1972)