L67 conversion

[beejaay]

hi guys im just after a few tips, pointers and/or opinions as im just about start rebuilding a stock n/a ecotec out of a 1996 vs commodore, im planningon doing a L67 conversion and i also plan on stripping the engine down to the bear block and boring/honing the cylinders (standard size) and upgrading all the internals like forged pistons, higher ratio cam, 1.97 roller rockers ect, im currently surfing the net to get a rough idea on parts, prices and availability, does anybody know what parts i would need, obviously i need the ecu and loom but do i need oil lines vacuum or air lines a new trans or something???? its not a rush job, i plan on taking my time and i plan on trying to make a fair amount of kw's aswell :yeah, would it be better to buy an original L67 and rebuild that or stick with my original plan???? thanks for reading i hope to hear from someone soon

 

[adz_vy]

You're better off buying a stuffed l67 motor and rebuilding that.

Don't do the top end conversion as its more hassle than gain in my opinion.

 

[aussie bob]

Would be better to buy the conversion and rebuild that. Will cost $1200 to $2,000 max for the engine box loom and ecu. Cheaper for a stuffed motor

 

[Jman_83]

hi guys im just after a few tips, pointers and/or opinions as im just about start rebuilding a stock n/a ecotec out of a 1996 vs commodore, im planningon doing a L67 conversion and i also plan on stripping the engine down to the bear block and boring/honing the cylinders (standard size) and upgrading all the internals like forged pistons, higher ratio cam, 1.97 roller rockers ect, im currently surfing the net to get a rough idea on parts, prices and availability, does anybody know what parts i would need, obviously i need the ecu and loom but do i need oil lines vacuum or air lines a new trans or something???? its not a rush job, i plan on taking my time and i plan on trying to make a fair amount of kw's aswell :yeah, would it be better to buy an original L67 and rebuild that or stick with my original plan???? thanks for reading i hope to hear from someone soon

Im doing the same thing at the moment and have picked up an L67 motor, loom and ECU out of a pranged VS stato for $1500 from my local wrecker. This way all the bottom end has all the strengthened bit in it. I'm planning on going 1.98:1 roller rockers from MACE, tossing up on CAI either OTR (got one sitting here) or mace airbox, MSD coil packs, boost upgrade kit (10-12 psi), extractors and exhaust for now then A2A intercooler, MAFless tune (may need to do this sooner rather than later and some other stuff bit down the track.

As for taking a N/A motor and charging it you could do a side mount raptor kit. Best option i believe is a L67 conversion and you can always strip it down and rebuild it.

 

[wraith]

L67 coils are the best coils for the ecotec.

 

[tavrin]

I agree with adz_vy.

It will probably cost you more to buy an L67 topend and an Ecotec motor seperately.
There are many cheap busted L67's going around on ebay for < $1k (Full conversion, including transmission, ecu, bcm, wiring loom and other goodies). I personally got one for $900 and am doing the exact same thing you are doing.

If you already have the Ecotec to begin with, you will then need:

+ L67 Heads & Rocker Covers *You 'can' use Ecotec heads and have a machine shop drill out the injector bosses in the heads, you will then need to get rocker covers to suit though*
+ L67 Harmonic Balancer (Get a new one imo) *Needs to be re-balanced if using new rods / pistons*
+ Pulleys
+ Lower Intake manifold
+ Rear Coolant water pipe (the metal one)
+ Supercharger
+ L67 DFI & Coils
+ Fuel Rail & Injectors.
+ L67 Memcal from a VS (Standard Ecotec ECU will work, just open it up and take out the ecotec memcal and drop in the L67 one).

Unless you can get the above parts for a cheap price; if you were to buy them outright I think they will cost you roughly the same amount as a faulty L67.

Good luck mate.