• Quality HSLA 60 grade steel
• 1974-1985 GM (153 Teeth)
• 8 Spoke (Ultralight) - 3 lbs
• SFI 29:1 Certified @ 12,500 RPM
• Lightest flexplate available anywhere
• Manufactured in the USA
• 60.1 lb.-in.2 MOI - 51% of the moment of inertia of an equivalent typical OEM flexplate
• Significantly improves your engine acceleration and deceleration
**NOT IMCA LEGAL**