BALANCED

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Ahh...I get you, and I "feel" your mental torment (if you want to call it that - I would though - lol).

I say this b/c I went through a very similar thing when prepping for my 408 stroker build.

My approach was as follows:
1) I measured each component weight, and tried to balance stuff around to level things out. Lucky for me, there wasn't much disparity.

2) I then brought this matrix to the shop that did my balancing and given that we were 3g off (lightest to heaviest) they felt we could aim for the middle spot.

Everything else is pure faith that they did the right thing.

I've attached what my blueprinting spreadsheet shows for this.
Yes, this what I thought would be done. Still trying to sort through this. Been trying to speak with the fella at the shop that did this. We've been playing phone tag for about a week now. I got real busy at my shop and they always have work. It will get sorted, one way or another.
 
Been a minute, work and life sometimes takes priority. OK, a lot of the times. As far as my balance issue goes I decided to use a different machine shop after a discussion or rather a Q&A of what my goal for the build is. A conversation that was always cut short and rushed at the other shop. I had looked at this shop in the beginning with the only real down side being it's 170 miles from the house. They also offer a few more services, one of which is flow testing. :)
They have the complete rotating assembly, crank, bearings, pins, locks, all of it. They are going to get each rod as close to equal (big & small ends) as possible and go from there. They may have to add some heavy metal to the crank. A lot of drilling was done. We'll see, fingers crossed.
Decided to forego the J heads for a set of SM heads that are also at the machine shop for a work over and some new angles. I cleaned them up with some 80 grit rolls. The main thing was the land at the seat inserts, pretty rough. Then I just smoothed out the bowls and runners not taking out a lot of material and massaged the short radius making sure it was a smooth round transition. Measured the (2.020) seat and throat on the intakes, they were pretty close to the same. So I decided to go with some Hughes 2.055's to try and get that 90% back if I understand all that I have been reading, correctly.
All of this will be topped off with a set of Hughes 1.6 roller type rockers being pushed by a Hughes 571/582 lift cam. All of this with a 6 discs, manual shift 904 going to a 391 posi could make for some fun Saturday nights. "I love it when a plan comes together".:)
 

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