No worries, ask away!!!! Im on bottom end #3 version 3 essentially on this build.
1) Original 7 main bottom end with custom pistons, the rest stock but freshened up. Made 300whp at 17psi but was blowing headgaskets every chance I could. Ended the streak by adding intercooler, head studs and most importantly, a better fuel pump/regulator setup. When putting the headstuds back in after changing the last blown headgasket I heard a loud CRACK deep in the bottom end. Cracked the block between the stud hole and one of the water jackets ruining the built up bottom end
2) This brought on version 2. BONE stock, redneck rebuilt like 10 years prior and never successfully ran bottom end from my friend's 67. Picked it up where it was sitting under a tarp in the yard for a couple years, brought it home, put my cam in it and the headstuds and tossed it in as is. The turbo went out when I was getting it dialed in so I replaced it with the TE44 that Im running now. I didnt have a reliable wideband at the time and my tuning knowledge was slim to none so it was 9:1 rich and made 240whp and about 310tq at 20psi. I eventually did get the A/F dialed in alot nicer and it ran like a scalded dog but I never got it back on the dyno. Because it ran so rich for so long, the rings were shot and it smoked really bad so out it came for a rebuild.
3) Version 3 was supposed to be either tossing another freebie motor in (ended up being a 4 main 170 so I ditched it) or another redneck rebuild in my garage BUT the cylinder wear was too much to simple hone out so custom forged pistons were ordered, ARP main and rod hardware tossed in, new cam and an Ozzie head fell into my lap. Sent the TE44 out to be rebuilt, built a header, downpipe and redid the entire intercooler/charge pipe setup as well to be more efficient. Im praying for a successful break in here soon then itll be off to get some tuning down I hope. Would LOVE to see mid 300's on low boost and maybe even squeak into the 400s with the wick turned up. We shall see.
I say all this to point out something. A stock bottom end (heck, healthy or not really lol) can make really good power and be reliable and strong with the right fuel setup and a good tune!!! If I were to build another blown inline setup it would be super simple with the stock bottom end, custom cam, headstuds, 2 barrel and I would focus all my time on getting the tune right to make it happy.
Matt