Engine swap
Okay, I'm new here, and I'm sure it's been asked hundreds of times, but I have a 2008 Mazda6 2.3l, and recently blew the motor at 113k miles. I cant seem to find a used motor with low miles on it unless it's around 300 miles away. What other years are compatible to go into my 08, if any at all?
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Given how unreliable the 2.3 liter motors are turning out to be, here's a suggestion; search the internet for a discussion on the Ford Duratec 2.5 liter conversion. The two engines are externally 98% identical and the Ford is an easy swap; the good news is the 2.5 has some very important internal upgrades which make it A LOT MORE RELIABLE. Better still, the Ford mill is so plentiful folks are often finding used motors with low miles for under $400.
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What do you regarding ECU's when swapping from 2.3 to 2.5ltr capacity?
Is the duratec 2.5 different to the older Mazda 2.5ltr engine? |
As I understand it, you swap the block and head as a unit and then bolt on the Mazda manifolds and plumbing; no need to muck around with the ECU. As far as the pre-Skyactiv 2.5 goes, yes, as I understand it, the Ford Duratec and the older 2.5 are identical internally. What isn't so identical is the price of the used motors; the Mazda MZR 2.5 typically fetches well over $1,000 for a clean used motor, the Ford Duratec can often be had for $400 with less than 20,000 miles on the engine.
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