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I have never seen so much BS. So this is the communications between myself and PartsHawk: Good afternoon, We are writing to inform you that your most recent order has unfortunately been cancelled. Upon inspection of your ordered item, quality control found that the item was defective, and we...

Congratulations! No huge loss to me since I actually need 340 slugs and screwed up when I ordered these.

And I received a message through Amazon from PartsHawk that they weren't available even though Amazon showed several sets left in stock. Bet they are available at the $309.00 price!!:wtf:

I purchased them at the $101.00 price but it now looks like the price has been corrected to $309.99. Bummer. But it has dropped from 8 sets available after my purchase on March 9th to 4 sets available in a couple of days so maybe a few folks got a deal!

Hmm, thought the stock bore of a 340 was 4.04. Is the piston pin position incorrect for a 340? Also just looked them up at Summit, you are correct so my boo-boo. But at that price I will probably just keep them. I did edit my first post so nobody is misled.

Just purchased a set of new KB107.040 360 pistons on Amazon for $101.00 with their free shipping. Don't know if it's a short term pricing mistake or not, but at that price I figured it was worth it just to have them. As of 03/09/24 it shows they have 8 more sets...

When I tore down my 340 I noticed the cam bearings were not centered in their bores. Didn't think much about it, just thought whoever built the motor the last time was sloppy. However, when I went to install the new bearings I noticed the oiling holes in the black on #2,3 and 4 aren't nearly...

The right length for checking cylinder ridge !

Just a bad picture,crank, bearing and rod are fine. Going to end my curiosity and just build a motor

Agreed, it was just a curiosity thing. Bearings appear to have the old Federal Mogul logo on them.

Yep, my guess is that something happened that spun a couple of bearings and crank was turned and the bottom end was rebuilt with using the same stock pistons. Not actually a deal one way or the other, just made me wonder if the original owner gave the guy I bought it from "never been touched"...

The 73 RR 340 that I purchased had about 110,000 miles on it. Seller told me that the original owner told him the engine was untouched since purchased new. It is a #matching block to the car. Well, the copper rods I posted about earlier were obviously factory, but I found the engine to have...

Searched FABO and found lots of differing reasons, most of which match 69Bee's explanation. However I'm still curious about the + in the circle that's not on the other two rods. The consensus at FABO seems to be they are fine to use.

I've rebuilt more than a few big and small blocks and never seen copper color connecting rods. Tearing down my 1973 340 to go to the machine shop I found that #3,6 and 7 connecting rods are copper colored. The #3 and #7 rods have no markings on the machined pad while the #6 rod has what appears...

Thanks, after 30+ years out of the engine building hobby I'm sure I am overthinking it! Last engine I built was during the AOL dial-up days and online research didn't exist. Just went to the local speed shop and took their advice. What threw me was when the tech guy specified a 1981 truck or van...

Well, the call to Melling tech support was pretty useless. The tech said they use the Chrysler specs on the SPD-22. I told him that with all the years and models of 340 and 360 they show the cam to cover (1970-1981) I was sure Chrysler used a different cam in a 1970 340 Challenger vs. a 1981 360...

That is one of the reasons I am looking at a Melling cam kit, haven't seen many horror stories about them compared with some other brands.

Bet that was a pain to drive on the street!

Looks like Melling says the MTD cam requires different valve springs so possibly the SPD can use the stock springs. Decisions, decisions, guess I may be calling Melling tomorrow.

Interesting. The Melling website shows the SPD-22 as a stock?? replacement for anything from 1970 through 1981 small blocks. Obviously there were lots of different cams that Chrysler used during that time!