1998-2002 Mazda 2.6L V6 engines

KA3AX · Post by **KA3AX** » October 3rd, 2006, 2:08 am

Hey Mazda enthusiasts! I am new here and just IN LOVE with Mazdas!!!

My question is... Is there a difference between the engines in 626s in 92-97 and 98-02? They look the same. What about the Millennia engine? Will the Milli engine bolt up to a 626 manual tranny? Does the Ford Probe have the same engine as the 626? I think I know the answers but just want to be sure.

Thanks a lot in advance!!!

LooseChangeRacing · Post by **LooseChangeRacing** » October 3rd, 2006, 4:13 am

2.6L engine, well other than the truck engines which are G series I don't know of any 2.6l engines that mazda makes and definitly none that come in the 626, the 626 even the years you are speaking of
98-02 come with the KLDE

KLDE: dohc V6 2.5 170hp 163trq

your looking for KL engines from ford or mazda

Ford Probe GT KLDE
Mazda Millenia KLZE (A-spec)
Mazda MX-3 K8
Mazda 626 V6 KLDE
Mazda Mx6 LS KLDE

lakersfan1 · Post by **lakersfan1** » October 3rd, 2006, 10:16 am

The 98+ KL are the same except they don't come with distributors. You will have to check if the front bank exhaust cams have a slot to drive your distributor, otherwise you may need to swap the exhaust cams to hydraulic cams to get the distributor slot in the cam.

KA3AX · Post by **KA3AX** » October 3rd, 2006, 10:34 am

I'm very sorry!!!

I meant the 2.5 V6, I was just very sleepy last night when I came home from work so...please forgive me.

So now my questions are...

What is the difference between the KLZE and KLDE?
If the engine in the 98-up 626s is different then the older 626s, does that mean I cant put it into my mx-3?

If the intake manifold in the Milli is better than can I just put it on a 98-up 626 engine? What else can I swap form the Milli engine to the 626 engine to make it better?

Thanks soooooooooooo much!!!!!

KA3AX · Post by **KA3AX** » October 3rd, 2006, 7:26 pm

Anybody??? Don't tell me no one put an engine from a 98-up 626 into their mx-3. What are the differences between the 97-below and 98-up 2.5 V6 engines???

Tunes67 · Post by **Tunes67** » October 3rd, 2006, 7:35 pm

The KLZE is a JDM engine only.. it was not in any production car here in North America. The KLDE engines were production engines found in MX-6's, 626's and Ford Probes. The internal differences were small.. the ZE offers a higher compression ratio and more agressive cam profiles. In laymans terms.. the ZE is more powerful than the DE. But can only be sourced from japanese engine importers.. so buying one can sometimes be a crap shoot. The DE is much more common so they are usually cheaper to find. And since they have a lower compression ratio.. they are more forgiving as far as tuning if you want run a turbo. There are probably a lot of other differences... you will never find a FORD valve cover on a stock ZE either..

But you get the point.

Tunes67

johnnyb · Post by **johnnyb** » October 3rd, 2006, 7:46 pm

http://en.wikipedia.org/wiki/Mazda_K_engine

lakersfan1 · Post by **lakersfan1** » October 3rd, 2006, 8:18 pm

KA3AX wrote: If the engine in the 98-up 626s is different then the older 626s, does that mean I cant put it into my mx-3?)

No. I know you can get it to work. There's a guy in Rockford that did a couple MX3 swaps with the 98+ V6 engine. I told you what you need to look at. If 100% fits though. Every bolt hole on the 98+ 2.5 is the same as the MX3's 1.8L.

KA3AX · Post by **KA3AX** » October 4th, 2006, 3:11 pm

So I can buy a 98-up 626 and swap the engine and tranny to my MX-3?

lakersfan1 · Post by **lakersfan1** » October 4th, 2006, 4:42 pm

KA3AX wrote:So I can buy a 98-up 626 and swap the engine and tranny to my MX-3?

What language do we need to use to make you understand 'Yes'??

KA3AX · Post by **KA3AX** » October 5th, 2006, 12:54 am

What about the millania IM, will it direct bolt to the 98-up 626 2.5? Is there anything else that I could swap from the Milli to make the 626's engine faster, stronger, better...?

Thanks a lot everyone for your help, I don't know what I would do with out you'al!!!

lakersfan1 · Post by **lakersfan1** » October 5th, 2006, 6:38 pm

Sprechen ze Doiche?????

jschrauwen · Post by **jschrauwen** » October 6th, 2006, 1:04 pm

KA3AX wrote:What about the millania IM, will it direct bolt to the 98-up 626 2.5? Is there anything else that I could swap from the Milli to make the 626's engine faster, stronger, better...?
Thanks a lot everyone for your help, I don't know what I would do with out you'al!!!

Try a search to find out specifics on IM's. There are the Long and short neck (straight type) IM's and then the curved neck (Millennia) IM. There you will find specifics with regards to fitment since there are restrictions/limitations/clearance issues when it comes to RHD vs LHD. Also you'll also find out the differences in the sizes in the intake runners when it comes to square vs oval type. There's also some good pics available that will clearly set them apart.

KA3AX · Post by **KA3AX** » October 6th, 2006, 1:42 pm

Thanks a lot.