Yes, have done that! Installed 3L 164 in GTV6 with the GTV flywheel. A condition is that the whole crankshaft, front pulley and the 2.5 flywheel is balanced together as a unit. That means pulling apart the whole engine. In our case the imbalance before balancing was 30grams while tolerance was 15grams. After balancing the imbalance was under 1 gram. This engine is very smooth!
Have seen from other projects that the 2.5L flywheel was mounted without balancing ,taking chance that it would work. But i wouldnt recommend it from own experience.
A way to avoid all the dismantling and balancing of all the rotating parts could be to find out what imbalance it was with the 3L flywheel and then to balance the 2.5 fl.w. to same imbalance. Then theoretically one would restore the same balance as the factory engine. Not ideal solution but could work in my opinion...
We used a 4mm spacer between 2.5 flywheel and engine.
Hope this will answer your question!
Have seen from other projects that the 2.5L flywheel was mounted without balancing ,taking chance that it would work. But i wouldnt recommend it from own experience.
A way to avoid all the dismantling and balancing of all the rotating parts could be to find out what imbalance it was with the 3L flywheel and then to balance the 2.5 fl.w. to same imbalance. Then theoretically one would restore the same balance as the factory engine. Not ideal solution but could work in my opinion...
We used a 4mm spacer between 2.5 flywheel and engine.
Hope this will answer your question!