MANUAL TRANSMISSION FLYWHEEL BILLET STEEL 164T 28.2 Part Number Material/Weight Clutch Damper assembly counter bore Ring Gear Crank Bolts Unbalanced Application Foot Notes M-6375-A302B Billet Steel 23 lbs 6.00"" 157-tooth 6-bolts 28.2 oz.-in. Pre-1981 302 engines and 351 engines using 157T flywheels with 10.5"" diaphram clutch. Meets SFI 1.1 1 M-6375-A302AB Aluminum 12 lbs 6.00"" 157-tooth 6-bolts 28.2 oz.-in. Pre-1981 302 engines and 351 engines using 157T flywheels with 10.5"" diaphram clutch. Reduced rotating mass. Meets SFI 1.1 1 M-6375-B302 Cast Iron 157-tooth 6-bolts 50.0 oz.-in. 1981 and later 302 engines. Direct replacement for 1986-1995 5.0 Mustang 1 M-6375-C302B Billet Steel 23 lbs 6.00"" 157-tooth 6-bolts 50.0 oz.-in. 1981 and later 302 engines using 157T flywheels with 10.5"" clutch. Meets SFI 1.1 1 M-6375-C302AB Aluminum 12 lbs 6.00"" 157-tooth 6-bolts 50 oz.-in. 1981 and later 302 engines using 157T flywheels with 10.5"" clutch. Reduced rotating mass. Meets SFI 1.1 1 M-6375-D302B Billet Steel 23 lbs 6.00"" 157-tooth 6-bolts 0 oz.-in. All small blocks using 157T flywheel, 10.5"" diaphram clutch with 0-unbalance rotating assemblies. Meets SFI 1.1 1 M-6375-D302AB Aluminum 12 lbs 6.00"" 157-tooth 6-bolts 0 oz.-in All small blocks using 157T flywheel, 10.5"" diaphram clutch with 0-unbalance rotating assemblies. Reduced rotating mass. Meets SFI 1.1 1 M-6375-F46A Billet Steel 29 lbs 6.25"" 164-tooth 6-bolts 0 oz.-in. Fits 6-bolt 4.6 Mustang with 10.5"" clutch and some 11"" clutch applications. Does not fit 2005-2010 Mustang production clutch disc. Meets SFI 1.1 1 2 4 M-6375-G46A Billet Steel 29 lbs 6.25"" 164-tooth 8-bolts 0 oz.-in. Fits 8-bolt 4.6 Mustang with 10.5"" clutch and some 11"" clutch applications. Does not fit 2005-2010 Mustang production clutch disc. Meets SFI 1.1 1 2 4 M-6375-K302 Billet steel 30 lbs 6.00"" 164-tooth 6-bolt 28.2 oz.-in. Pre-1981 302 engines and 351 engines using 164T flywheels. 10.5"" Long, 11"" Long and diaphram clutches Meets SFI 1.1 M-6375-M302 Billet steel 30 lbs 6.00"" 164-tooth 6-bolt 0 oz.-in. All small blocks using 164 tooth flywheels with 0-unbalance rotating assemblies. 10.5"" Long, 11"" Long and diaphram. Meets SFI 1.1 M-6375-N427 Billet steel 29 lbs 6.00"" 184-tooth 6-bolt 0 oz-in. Fits 1965 and newer 360, 390, 427 FE engines. 11"" Long and diaphram, 11.5 and 12"" Long clutches. Meets SFI 1.1 M-6375-P428 Billet steel 29 lbs 6.00"" 184-tooth 6-bolt 28.2 oz-in. Fits 1966 and newer 428 FE engines. 11"" Long and diaphram, 11.5 and 12"" Long clutches. Balancing may be required. Meets SFI 1.1 M-6375-R00A Aluminum 12 lbs 6.200"" 164-tooth 8-bolt 0 oz-in. Fits 8-bolt 4.6 Mustang with 10.5"" clutch and some 11"" clutch applications. Does not fit 2005-2010 Mustang production clutch disc. Reduced rotating mass. Meets SFI 1.1 1 2 4 M-6375-R00B Aluminum 12 lbs 6.200"" 164-tooth 6-bolt 0 oz.-in. Fits 6-bolt 4.6 Mustang with 10.5"" clutch and some 11"" clutch applications. Does not fit 2005-2010 Mustang production clutch disc. Reduced rotating mass. Meets SFI 1.1 1 2 4 M-6375-Z460A Billet steel 40 lbs 6.00"" 176-tooth 6-bolt 24.2 oz-in. Fits 1979-1997 460 including M-6007-521FT/RT for external balance only. 11"" long or diaphram-style clutch with 5/16"" holes. 11.5"" and 12"" long or diaphram-syle clutch. 11"" diaphram Ford trucks even pattern. Meets SFI 1.1 M-6375-Z460B Billet steel 40 lbs 6.00"" 176-tooth 6-bolt 0 oz-in. Fits 1968-1978 429/460 for 0-balance only. 11"" long or diaphram-style clutch with 5/16"" holes. 11.5"" and 12"" long or diaphram-syle clutch. 11"" diaphram Ford trucks even pattern. Meets SFI 1.1 NOTES: 1 Diaphragm clutch uses metric bolts and dowel pins. Requires metric pressure plate bolts N602549-S51M and alignment dowel pins D1FZ-6397-B or Ford Racing kit M-6397-A302. 2 4.6L engines may have 6 or 8 bolts to attach to the crankshaft. Check the engine code before ordering. Romeo built engines have 6 bolts and Windsor built engines have 8 bolts. All Cobra engines have 8 bolts. The 8th character in the VIN is (X) for Windsor engine plant or (W) for Romeo engine plant. 4 Requires bolt and dowel kit M-6397-A46 for 11"" clutch applications.
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