Engine rebuild - advice wanted

[RICK LAKE]

DC If you are going to race full time, the couple of things I would change is aftermarket block and use all the good parts from old motor. Save old motor as spare bullet for during race season. Have all the lastest oiling mods done to the block for faster return to oil pan. If mind, add an oil line to back of motor at the lifter galley. helps supply oil to back crank and rods faster on startup and racing.
Can you go dry sump?? This would be a BIGGIE for longer life of the motor. Not cheap but worth it. If this is not doable add a 3 quart accusump to the oiling system with manual control.
rest of parts seam great and all work togeather for that motor combo.
When where the valve springs replaced?
No valve job but check the valves for sealing on the seats with fluid and a light valve hand grinding to reseal.
Intake manifold, if this was not ported send to Joe Craine to have ports balanced for flow, same applies for injectors, clean and have flow checked.
New O 2 sensors and way you go. Rick L Ps what main or rod bearing went??

[blykins]

Hi Doug...

You and I go back a ways, so give me a call and we'll see what we can do. I would reuse as much as you could, but steer clear of the Eagle junk. A 4340 crank should not break in a 400-425hp engine. Of course there can be other reasons as to why that would happen....bearing failures, balancer failure, etc., but I have 0% confidence in anything with Eagle's name on it.

That 347 should make some serious power with a little more cam and a carb setup or a different EFI setup altogether. The Edelbrock EFI intakes are not known for their ability to move air.