Ecotec to G-Force Transmission

[Rprice]

I am trying to mount a G-force trans to a Ecotec motor and have no idea where to start. build a custom bellhousing, premade?

[sickrick]

Prolite?

[Rprice]

i was waiting for somone to ask. yes.
CORR approved my head about a month ago. i doubt that WSORR will approve it which kind of sucks but iam not planning on running that series.
I have heard that paul morris old truck the one randy eller drove for paul two years ago ditched the old iron duke and also went ecotec but that is all second hand information. that is the same truck that the younger probst drove and if they did go to ecotec i'am sure they could build a mean little chevy.

[Rocket 450]

give these guys a call

http://www.tiltonracing.com/content.php?page=contacts
http://www.advanceadapters.com/
http://www.turnkeyenginesupply.com/

the turn key site in the ecotec section they list a adapter plate

[sickrick]

I have heard the bore size is the problem with making Pro-lite type power with the Ecotec.

With its stock bore of 3.464 inches I can see a major problem making the 280-300+ hp needed to be competitive. This is the same reason Ford is not running the Duratac engine in Prolite.

I am guessing you know this already and are working around it. Have you done any flow work on the heads to see the power potential? Even if you could increase the bore size enough the rules state you cannot weld on the head so you will be left with small valves that are too close together.

As far as the bellhousing goes; get one from a s-10 and shorten it to the length you need and weld a new plate to the rear that fits the g-force.

Good luck. Pm me I love talking about Prolite!

[BAPerf]

I have heard the bore size is the problem with making Pro-lite type power with the Ecotec.

With its stock bore of 3.464 inches I can see a major problem making the 280-300+ hp needed to be competitive. This is the same reason Ford is not running the Duratac engine in Prolite.

I am guessing you know this already and are working around it. Have you done any flow work on the heads to see the power potential? Even if you could increase the bore size enough the rules state you cannot weld on the head so you will be left with small valves that are too close together.

As far as the bellhousing goes; get one from a s-10 and shorten it to the length you need and weld a new plate to the rear that fits the g-force.

Good luck. Pm me I love talking about Prolite!


FWIW, the Ecotec engine has the same bore spacing as the Nissan KA engine, 96mm. In fact, that's the same spacing as the 2.3L DOHC ford engine, 2AZ Toyota engine, 2.0L/2.4L Dodge Neon, etc...

[BAPerf]

I am trying to mount a G-force trans to a Ecotec motor and have no idea where to start. build a custom bellhousing, premade?

Please tell me you are going to run the 2.8L I4 engine that looks like the Ecotec, and not the Ecotec... The 2.8L engine is the little brother to the 4.2L I6 that GM used in the Vortec Trailblazers. The 2.8L has 103mm. bore spacing, while the Ecotec has only a 96mm. spacing. The Toyota 2/3Rz engines have 102mm. bore spacing, and the large bore has a lot to do with why they have so much potential. If you are going to run the little Ecotec, call Kroyer Racing Engines in Las Vegas, Nv. Ron (@ Kroyer) has built and run an aspirated ~2.6L Ecotec engine, and I'm sure he can fill you in on that platforms issues...

[HotRod82]

Call G-force, they have always been very helpful. He told me he would build any adapter I wanted, the only hurdle being you have to send him your block and clutch assy. Reasonably priced, but you do have to be patient with them.

[sickrick]

Bore spacing and bore size are important but if you can't weld on the head you can't get big enough valves in to take advantage of the larger bore size.


Eventually someone will get a chevy Prolite on the podium but its has never happened before.

[Rprice]

Please tell me you are going to run the 2.8L I4 engine that looks like the Ecotec, and not the Ecotec... The 2.8L engine is the little brother to the 4.2L I6 that GM used in the Vortec Trailblazers. The 2.8L has 103mm. bore spacing, while the Ecotec has only a 96mm. spacing. The Toyota 2/3Rz engines have 102mm. bore spacing, and the large bore has a lot to do with why they have so much potential. If you are going to run the little Ecotec, call Kroyer Racing Engines in Las Vegas, Nv. Ron (@ Kroyer) has built and run an aspirated ~2.6L Ecotec engine, and I'm sure he can fill you in on that platforms issues...

I'am not building the motor. so i have no idea what they are doing to the motor. about a month ago i dropped off a ecotec head at North american offroad(new CORR tech) with gary i think and a week later got a call back saying the head is approved for CORR and that was it.
for the bellhousing i did call G-Force and the gentlman i talked to was not that much help. i was going to run a midplate setup but i think i will just use the two front mounts the trans mount and a mount off the top of the bellhousing.

[Rprice]

As far as the bellhousing goes; get one from a s-10 and shorten it to the length you need and weld a new plate to the rear that fits the g-force.

Good luck. Pm me I love talking about Prolite!

I think i may just modify a stock bellhousing but still need the trans and clutch. the Goldstar is what everyone is running correct?

[BAPerf]

I think i may just modify a stock bellhousing but still need the trans and clutch. the Goldstar is what everyone is running correct?


The Ford guys are still running the Goldstar clutches, but most/ all the Nissan and Toyota guys run Quartermaster or Tilton. Be carefull welding on the belhousing. FYI most of the Toyota and Nissan trucks have stock bellhousings with an adapter plate BOLTED to it. If you need it, I have a 24" square adapter plate .500" thick that is machined with the G-Force pattern, and the bellhousing holes have yet to be machined.

[Rprice]

give these guys a call

http://www.tiltonracing.com/content.php?page=contacts
http://www.advanceadapters.com/
http://www.turnkeyenginesupply.com/

the turn key site in the ecotec section they list a adapter plate

BTW way thank you, i like the Tilton stuff i will call them monday and see what they can offer in the form of bellhousing and clutch assemblys. BA i will have to PM you and ask you some questions. thanks!