Whether you are updating your early SBC electronic fuel injection system to use a newer ECU, adding electronic fuel injection to your SBC engine for the first time, or update the ignition system on your carbureted SBC engine, an EFI Connection 24x SBC conversion will equip your SBC engine with the crank and cam signal components necessary to be controlled by popular GM LS-Series compatible ECUs. Special requirement note: SBC balancers with a thickness more than 1.325" will not clear timing cover and crank sensor. Balancers designed for 96-newer SBC application may be compatible. Consider using ATI P/N 917782 as it measures 1.200" in width (for internal engine balance only).
EFI Connection's 24x SBC systems are designed to output the 24x crank and 1x cam signal of a GM Gen III LS-Series engine. This means that LS1 compatible ECUs can now be used on 24x equipped SBC engines!

The differences in the variety of available SBC engines required us to design and manufacture many different 24x SBC conversion kits. Get started by using the conversion matrix below to choose the appropriate 24x SBC conversion for your engine.