Other than the crank shaft, a 2.7 and 2.5 block are the same.
I suspect that the main problem is the 200k on the short blocks and wear on the bearings. If not totally destroyed, check the crank on one of these for wear and rebuild the bottom end.
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Strength of the 2.7 vs 2.5 bottomend?
I blew two 2.7 engines in 2 weeks! Is it bad luck or should I be running 2.5 bottomends. I have not taken them apart but they both had over 200,000 miles and it was not the timing belt (new) but it seems like the main bearings.
The real question is: Strength of the 2.7 vs the 2.5...are they the same main bearings etc.???
Ideas?
Thanks
Chuck
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