Originally Posted By: mpvue
Originally Posted By: SS1970chrysler
Most durable of the I6 Ford engine family were the later 200's. With 7 main bearings, you could spin the stock internals near 10k before it broke a sweat.
Trouble is getting enough fuel/air into it. Even JC Whitney sells an intake for a 2bbl that bolts up to the 200 I6. Avoid the 250 as that's the one with integral head and intake.
Don't overlook 2dr Mavericks either, especially 70-72.
there is more to spinning high RPM's than the durability of the mains; the ford I6 is basically a TRACTOR motor: high torque, low RPM's. the long rod length is not conducive to high RPMs either.
aftermarket support for inlines is NOWHERE near what it is for a small block. you could build a 302 for A LOT less than a I6 and have a more powerful engine.
but, if you want to build a I6, go ahead, it would be cool and different. but don't do it because you think its cheaper.
If I did it, it would indeed because I wanted to do it; not because it's cheaper.