I think I know the Answer but I don't want to hear it

Stop while you're ahead. The shop is better equipped to deal with this.

Again, let them figure it out. The engine has been apart before, so all is pretty much an unkown.

Many folks who've posted here have had VERY good luck with hypereutectic pistons. The reason I don't recommend them is because they have a unique failure mode when it comes to detonation. If you're savvy with preventing detonation, you can do well with them. If you're unsure about using the "hypers", again get TA's input.

I've flirted with detonation so much over the years that I'm gun shy, so I anly use forged aluminum pistons.

Using the search words 'hyper' or 'hypereutectic' in the search feature on this site will give you lots of reading.

Devon

 

I shut it down about an hour ago telling myself exactly what you said. At this point I see my bill increasing more and more. I looked at the bearings and they all look pretty good, how would I know if my crank is going to need to be turned, or if it can be polished and reused with new bearings?

 

Any thoughts on the piston, because from the look of the pistons the valve release extend beyond the top of the pistons a decent amount. I put the numbers in on their compression calculator, and it gave me a number of 10.73-1. How accurate do you believe this is?

 

You can't know unless you have the tools on hand to do the measurements and surface finish inspection, and the expreience to know how to diagnose these things. Without measurements, there's no way to draw a conclusion.

Devon

 

Billet timing set? outside of the weight savings, are there any other benefits to the billet timing set. In addition to this, The billet set from TA says that it is true, and that you are able to advance the cam with the gear set, so If those things are true will I still have to advance the cam on installation, or can I accomplish this task in the timing set?

 

Yes the billet timing set is adjustable so you can degree the cam where you need it.You will want your 413 cam degreed so you will have vacum for your power brakes.
Jamie

 

So I can accomplish the advance only with the timing gear set and be fine. I looked at the 413 post that has been up and it appear that an advance of 6 to 8 degrees is pretty much where most people are setting there cams, Is this the most optimum setting for HP?

 

sorry to steal . but if a cam says on the card its 4 deg advanced if you put it in dot to dot will it be 4 advanced or 4 retarted ??

 

Larry just out of curiosity what would a person expect to pay to have a cam installed? I am dropping the short block off to TA in the morning, and they will be doing al of the oil mods, new cam bearings balancing the assembly, and putting it all back together. If the price is not to bad I may just have them install the cam so I don't have to worry about degreeing. I have never installed a cam shaft before, and the thought of getting this wrong is starting to make me have second thoughts about doing it myself, But it being the holidays I have to give thought to trying it, if the cost is going to be more then another couple hundred bucks.

 

dont even think of installing the cam yourself. I've seen people do it that have done it before, and it still takes them alot of time, head scratching and lost hair to get it dead on. This is the heart of your motor and getting it wrong can cost performance severly.

Since your motor was previously rebuilt and you have no idea of spec's, TA will have to measure everything to determine what is needed, i.e. the crank journals may have been ground on the last rebuild requiring bearing sizes other than stock.

As to the flexplate, mine looked worse than yours. If you are not going th have the engine balanced by TA (again, soemthing that is recommended and costs more) at the least ask if they can "match balance" the flexplate ... or if they know a shop that can do it.

Do you know what valve springs you have ? are they the double-spring (inner and outer) type ? If so, ask TA if they recommend if the motor be broken in with only one spring. If so, and they have the capabilities, you may want them to do this as removing and reinstalling springs while on a motor has its tricks that you may not want to takle alone for the first time.

In the famous words of Doug Hecker ...

 

I concur that is why I told them yesterday to go ahead and install the 413 cam. They will also be balancing the entire assembly. New duel grooved cam bearings, mains and rods, replacement crank, all oil mods, honing the cylinders, and line honing the mains, total seal rings, and putting the short block back together. Thats it for now. They will be closed for the holidays starting tomorrow, so hopefully my bill does not expand while they are out. When they open back up on the third it should take a couple more weeks from there before it is returned to me.

 

Sounds good you will be happy that it will be done right.Are you using the adjustable timing set?
Jamie

 

Yes I am going to go with the billet set