Engine Differences

**kc199** · 03-15-2012

I know that I can replace my L36 engine with a newer L26 engine. What are the differences between the model years of L26 engines? Such as what is different on for example a 2004 and a 2007 or 2008?

I have a 1999 Gt and found a low mileage 2006 L26 for a good price. Would this just be changing the UIM, LIM, fuel rails, and throttle body?

**Austins01GP** · 03-15-2012

the l36 is the older model

**kc199** · 03-15-2012

Originally Posted by Austins01GP

the l36 is the older model

Yeah, I guess I should have proof read it a little bit better. Wrote them backwards. Thanks...it's been edited.

**BillBoost37** · 03-15-2012

You can swap the UIM, fuel rails, evap soleniod, tb and maybe the rear exhaust manifold.

**Austins01GP** · 03-15-2012

ok sorry i was a bit confused! lol
there are a few differences

different fuel system (04+is returnless)
LIM is metal instead of plastic
they have electronic controlled throttle
heads flow a little better

im sure there is more thats just off the top of my head
i believe you can do this swap, just takes a few modification

**BillBoost37** · 03-15-2012

^^ you mean UIM not LIM.

**Austins01GP** · 03-15-2012

Originally Posted by BillBoost37

^^ you mean UIM not LIM.

yeah my fault! too use to the blower cars lol

**BillBoost37** · 03-15-2012

I'm with ya! I have trouble with that black plastic thing on top too.

**kc199** · 03-15-2012

Originally Posted by Austins01GP

different fuel system (04+is returnless)
they have electronic controlled throttle

Will swictching the fuel rails and throttle body be enough. Or will there need to be additional mods?

**Austins01GP** · 03-15-2012

haha glad its not just me!

and OP im not to familiar with this Bill might be able to add more than i, but i believe you need to keep the l36 fuel system when swap the motor out
so instead of swithing you keep the l36 throttle body and fuel rails

**kc199** · 03-15-2012

Originally Posted by Austins01GP

haha glad its not just me!

and OP im not to familiar with this Bill might be able to add more than i, but i believe you need to keep the l36 fuel system when swap the motor out
so instead of swithing you keep the l36 throttle body and fuel rails

That's what I was thinking. The L26 block should be the same and then just switch everything else from the L36.

**Austins01GP** · 03-15-2012

that would work blocks are the same
, id keep the l26 heads and UIM tho
they had some improvements

**kc199** · 03-15-2012

Heads would stay...but doesn't the UIM need to be changed over? Does anyone know if the exhaust will mate up?

**BillBoost37** · 03-15-2012

You can use the UIM if....you get a TB adapter.

**Austins01GP** · 03-15-2012

i confused myself lol
i would use the newer heads and UIM they are better
and i i think the exhaust will be fine

**kc199** · 03-15-2012

Thanks guys. Guess I was just second guessing myself. The only thing I will do different than what I had planned was the UIM. Looks like I need to place an order with ZZPerfomance.

**BillBoost37** · 03-15-2012

When you use the UIM, you can use the L26 evap. It's an easy swap. Just hook up the hose from the tank to the evap soleniod and then the electrical connector.

Sorry about spewing things out kinda randomly. Doing these too many times, you tend to leave out things that your hands did on their own w/o thinking about it. =0)