[Bobboloo]

My preference when starting with a 2.7CIS motor is a 74' or a late 77' motor.

The reason being is because the 74' motors didn't have thermal reactors, so your cylinders didn't get "baked" causing excessive heat. The 75' thru early 77' cases tend to need the most work to get them "square" again due to warpage warpage.

Late 77' cases had dilivar studs on top and bottom rows and this seems to have help counteract the warpage problem incurred from the excessive heat. I own a late 77' motor that low and behold doesn't leak oil or have any pulled studs. Fortunently the dilivar studs haven't broken... yet.

A late 73'S motor would be a great starting point. They have 7R cases. The ports are already the correct size. The induction is bolt on ready. All you really need is the correct P+C's, enlarged spigots for the P+C's and a MFI pump recal. Basically a 2.4S and a 2.7RS are the same motor. They just differ in displacement.

Another good starting point in my opinion would be a 2.4T MFI motor. In alot of ways this is a better starting point than a lot of the 2.7CIS motors. The 2.4T cases don't usually need all the work that the 2.7CIS motors need because they don't don't seem to have the bad warpage problems. I just rebuilt a 2.4T and the case checked out great. No align boring or resurfacing was needed. I just decked the case and installed case savers even though no studs showed any signs of pulling. The heads on a 2.4T will already have the bore for the MFI injectors and you can use the T induction system. You'll have to buy the correct stacks but you can bore the TB's and recal the pump. The exhaust is also correct.