273 302 318 340 build

I'll get to the balance stuff in a day or so...working looong days again. The homework assignment for that is to go on the Eagle site and look at the bobwieght computation card that they show; see here:
Eagle Specialty Products, Inc.


So what is it with the FM guy and the Summit guy and the 526AP's? Geez...... I suspect these guys is just reading out of a book! C'mon.... the specs are all there....The 526AP's are listed on the Campbell Enterprises site as available. Ahhhh it may be that the 526AP's and 814AP's are out of production.....that is why FM would not list them.

I agree with your machinist on the small ends. I can; timagine the bronze bushing holding a press-in pin; it is soft.

So what is the story behind the 340?

LOL, yeah both tech guys were great on the phone. I figgered I would call FM tech first. 20 minutes on the phone with Hal and we had the 285 picked out. He had to look at prints etc. To determine float or press. I asked him to email print...he laughed. NOPE. He did give me all the info he had on the print though. I mentioned some above, but to add to it, piston weight 601.4 +/- 10 grams. Pin 154 +/- 10 grams, so 755.4 total. Piston pin bore diameter 0.98448 to 0.98468. 4 valve reliefs.
I had things to do so we left it at the 285 for now.

BUT when I talked to the Summit tech(good guy again) I mentioned that their website doesnt say floater, it simply says press fit, and that I am calling to confirm. I mentioned maybe someone could lay their hands on a piston to confirm. He laughed...(2/2) He said what they do is go to FM website and punch the part number in to get info....LOL. So here is what comes up for the 526 with press fit.

Sealed Power Cast Piston (Carton of 8)

Here is the link to the 285. These are actually a little cheaper. I think $270 pistons, moly rings, shipping taxes etc all in.
Sealed Power Cast Piston (Carton of 8)

Ring kit link
Sealed Power Premium Piston Ring Set

The 340....the owner was gathering all of them up he could in the 80's 90's etc. This is one he just simply doesnt need. Everything that comes with it has been refreshed a few years back and has sat. He mentioned its been decked, I forgot to ask how much, but he did say with stock X heads its around 10:1. Comes with all new bearings, cranks been turned 20/20. Pistons are used, but new moly rings and block hasnt been run since the .030 over bore.
It seems like just a simpler swap. It sucks that I have went and bought 2 318's and its a damned obstacle course in the garage right now. Altho the 1 318 came with the LD340 and Eddy 1405 so no loss there.
He is in no rush to sell the 340, and will "save" it for me. Need a 340 for the 69 ragtop so......
It is in the $1000 range....
I will do some number crunching on the 285 and see what compression turns out to be. Be a guessing game till I figger out whether I do the 302 heads or not.
Thanks, much appreciated.
OH, I will chk Eagle site out and NO RUSH on the how to. Im back at work(12 hr shifts) so eat sleep work lol

Foresee any issues with 68-70 hipo manifolds and power steering?