Flexplate SBC 153 Tooth 2.8lb

The original spoked, SFI 29.1 certified flexplate. Manufactured from premium HSLA 60 grade steel, significantly improve engine acceleration. Zinc plated. Lightweight Flexplates are: SFI 29.1 certified, Quality HSLA 60 grade steel, Tested to 12,500 RPM, Lightest flexplate available anywhere, Manufactured in the USA, Zinc plated for corrosion protection. 60.1 lb.-in.2 moment of inertial - 51% of the moment of inertia of an equivalent typical OEM flexplate. Significantly improves your engine acceleration and deceleration. QTMRM-901 SBC Flexplate Features: (Lightweight 2.8#) 1974-1985 GM (153 Teeth) SFI 29: 1 Certified @ 12,500 RPM 4 Spoke.