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Big Block EFI Conversion Kit 19542825
19542825 Big Block EFI Conversion Kit
Note: this is a future part with no ETA, call us at 847-276-8110 for information
Looking to add new life or modernize your existing big block to electronic fuel injection, the Big Block EFI kit comes with hardware necessary to convert a carbureted ZZ427, ZZ454, ZZ502 to EFI. Chevrolet Performance first engineered these components for our own SP502 EFI Deluxe engine, and now the EFI kit is available to purchase separately. The kit includes intake manifolds, with throttle body, fuel injectors, fuel rail, timing kit, timing cover with cam./crank sensors, ignition coils, coolant temp sensor, oil pump drive, and fuel injector harness.
For handling air, the kit comes with a 2-piece intake manifold designed for use with oval port heads typically found on ZZ427, ZZ454, and ZZ502 crate engines. The lower manifold is designed for use on 9.800" standard deck blocks.
The ignition system is designed to operate without a distributor, with the control kit driving 8 individual coils. The timing cover, 58x crank trigger wheel, and double row timing kit are provided. The timing kit is designed to be used on Gen5/6 blocks with a retainer plate.
Note; Will not fit tall-deck blocks
Install notes:
- Items are designed to work with Chevrolet Gen 5/6 big block engines including Bowtie Blocks, ZZ427, ZZ454, ZZ502
- Control kit, wiring harness, plug wire and other components are not provided
- The end user or qualified shop will need to wire the vehicle, provide a control kit and complete engine calibration
- Due to configuration of a 58x trigger wheel and 8 individual coils, an LS based control kit could be used
- Refer to the Big Block EFI Kit Installation Instructions for further Information



