JB-JL come from L500 chasis, which is easy to found in manual tranny...and also easier to fit into kancil....JB-DET formerly known comes from L900=kenari chasis (not sure if available in manual tranny).
JB-DET comes with wider I/C, bigger turbo compressor inlet and if not mistaken this engine run with individual electronic coil.
Bump: my engine bay with JB-JL taken out from L512 halfcut...
Bump: my engine bay with JB-JL taken out from L512 halfcut...