ecotec l67 convertion

[aj2112]

hi ppl im curious as 2 how much stuffing around it would b 2 do an l67 convertion in 2 a vr obviously the ecu would b different but r the loom an cross members an stuff all different? Also i have a 5 speed behind the buick atm will this bolt up 2 the ecotec/l67 motor
Cheers

[westerlybreeze]

L67 bolts in the same.
Flywheel will need to be match balanced to the L67's flexplate, as they're balanced differently.
Looms are different; L67 injector wiring is longer (and wired individually for sequential fire, not batch fire like the VR), L67 uses two knock sensors (Ecotec L36/L67 use two half the impedance of the earlier VR), L67 uses a MAF sensor in the intake - where the VR uses a MAP sensor from the manifold, so wiring for these is different.

So comes down to; if you're going to use the stock L67 S/C ECU with MAF - use the L67 S/C loom. Or use the VR loom and ECU with 2bar MAP sensor and custom tune.

Did I miss anything?

[aj2112]

ah ok sounds very achiveable its goin 2 b on a budget(aint they all) so its all going 2 b done it me garage the only other thing im worried about is extractors they wont bolt up 2 the ecotec will they alslo i have been told that the bcm is different is this correct? How do i go about changing it if it is

[westerlybreeze]

ah ok sounds very achiveable its goin 2 b on a budget(aint they all) so its all going 2 b done it me garage the only other thing im worried about is extractors they wont bolt up 2 the ecotec will they

Ah no, port spacing is different.. change exhaust manifolds/headers too.

I did miss something!