EFI 4x™ LT1/LT4
An EFI 4x LT1/LT4 conversion will equip your 1992-1997 LT1/LT4 Chevy engine with the crank signal components necessary to be controlled by 1996-1997 GM LT1 PCMs.
Double roller timing set installations create clearance issues within the timing cover of 1992-1997 LT1 engines and the 1996-1997 GM 4x crank reluctor is not shaped to allow for the double roller chain. EFI 4x LT1/LT4 conversions resolve all clearance issues and provide the 4x crank signal for the 1996-1997 LT1/LT4 PCM.
The differences in the variety of available LT1/LT4 engines required us to design and manufacture many different 4x LT1/LT4 conversion kits. Get started by using the conversion matrix below to choose the appropriate 4x LT1/LT4 conversion for your engine.
| PART # | 1992-1997 LT1 ENGINE |
SINGLE ROW TIMING SET |
DOUBLE ROW TIMING SET |
MECHANICAL WATER PUMP |
ELECTRIC WATER PUMP |
WITH 2.25" ATI HUB |
WITH BBC SNOUT |
| 120-00129 | X | X | X | X | |||
| 120-00128 | X | X | X | X | |||
| 120-00213 | X | X | X | X | X | ||
| 120-00214 | X | X | X | X | X | ||
| 120-00215 | X | X | X | X | X | X | |
| 120-00216 | X | X | X | X | X | X |
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