Very basic engine rebuild/refresh, need some opinions
The shortblock is a 94, so that is great news on the main bolts.
Stock shortblock idea is out, it needs a new timing cover seal, and if Im going to go that far, I might as well do a timing set, and if I go that far, might as well do a cam, and then I need springs, and then I should just pull the heads...then blah blah blah SNOWBALL.
With the 0.026 head gaskets I will be around 11.1:1.
My wife is fine with the engine build in the guest room, it was either that or a motorcycle restore in there
http://www.jegs.com/i/Crane-Cams/271/10308-1/10002/-1
The cam specs are

Are the springs I have going to be enough seat pressure to not float up to 7000 or do I need to go up to a 150lb seat? I'm using stock lifters, comp pro mags, 7/16 studs and guide plates. My heads are heavily ported by an unknown porter, and I'm going to cc the chambers and runners when they get here. I'm going to mill them 0.010 probably and deck the block 0.010 to up compression to 12ish to 1, per bowtienut's suggestion.
All a stud will do is fill the bolt hole better - if its properly sized. That reduces main cap walk - nothing to do with compression force distribution or cap distortion - that stays the same. Only other advantage is the studs allow frequent disassemble without ruining the threads in the block.
Same clowns different crap,
cardo
Another question I had was rings, since this is a budget rebuild and I have no blow by right now, do I need to rering it or can I just reassemble? This motor is not my final build, if this one survives it will go into a car for my wife and I will build a 399 out of my other shortblock in a year or so and get new everything. I just can't justify spending $300 on total seal rings, I might as well spend $600 on forged pistons, then a bore, then rods, then rebalance, and it snowballs. If I **** something up and it blows, ill only have $1000 invested, I got the heads and cam for a whopping $450 shipped, and so far I've added up $300 to rebuild the bottom end. I don't want to snowball any farther. I have a set goal here, learn to assemble an engine, buy good assembly tools, learn to tune, and run 120 in the 1/4.
Last edited by bufmatmuslepants; Oct 7, 2013 at 06:06 AM.
If I understand correctly what your objective is for this build, a fresh hone and new stock rings are what you want.
Mine got a good machine shop hone to round out the bores and new stock rings. I don't remember the numbers, but I'm running substantially more PTW clearance than stock range, but all is good and I can't hear a thing

I've never disassembled/re-assembled a shortblock without a hone and re-ring; I don't know what would happen to your presently good ring seal if you do that.
If I understand correctly what your objective is for this build, a fresh hone and new stock rings are what you want.
Mine got a good machine shop hone to round out the bores and new stock rings. I don't remember the numbers, but I'm running substantially more PTW clearance than stock range, but all is good and I can't hear a thing

I've never disassembled/re-assembled a shortblock without a hone and re-ring; I don't know what would happen to your presently good ring seal if you do that.
The Best V8 Stories One Small Block at Time
U are partly right as the bolts will have different stretch but that main cap wont get pulled down any further for the same applied torque. 55ft-lbs on stock main bolt = 55ft-lbs on a high tensile bolt = 55ft-lbs on a stud = 55ft-lbs on a TTY bolt. Yes all produce the same clamping force. The high tensile bolt pulls with the same 55ft-lbs as the stock bolt. U need to look at tensile stress vs length diagram for steel as both normal and high tensile strength bolts are used in the elastic region which stretches under load then returns to original length once load removed. Those bolts will yes, stretch differently, but the applied tensile force is the same for the same applied torque. TTY bolts were a development that operate in the plastic region that doesnt return to its original length and remains deformed but still provides the same clamping force as other bolts for the same torque. TTY advantage is longer fatigue life. Disadvantage is smaller bolt used for same torque and again this leaves more room in the cap bolt hole and more prone to cap walk. I believe u will have the opposite results from what u are looking for when using TTY bolts on the main caps. BTW where can u find TTY bolts for the mains? Who sells them? Are just shopping by bolt size?
U should google/research this for yourself - not looking at blogs and relying on hearsay. BTW the GEN II blocks use TTY only on the head bolts while the main caps use standard main bolts. Do u know how select the correct TTY bolt for your size and torque?
I dont know who mike is but just because someone has a fast car doesnt mean he has all the answers. Alignhoning not only increases your expenses but reduces the crank to cam distance which in turn loosens the stock timing set. Does he have a fix for that too? I didnt read one. Looser timing chain means less accurate timing which means less power. Do u want to spend more to make less power?
Im working 12s now and really dont have time for long discussions. U can believe what u want but if u take the time to research before u spend your $$$ u will have better results than listening to the blog clowns that run their mouth over the internet boasting hearsay BS at your expense.
cardo
https://ls1tech.com/forums/generatio...oing-come.html
Last edited by bufmatmuslepants; Oct 10, 2013 at 06:49 AM.
Pretty sure ARP stuff will have a different torque reading, and furthermore, a torque reading off a bolt is different than the same torque on a nut (stud).
Stud distributes no rotational force onto the block and allows for a very good strict vertical axis force. Highly reliability from better torque readings is a win in my book.
And how in the world can you just blanket statement that any bolt torqued down is good enough? A stock OEM bolt is IMO less trustworthy from a material standpoint than a reputable fastener company like ARP etc, and material wise a good ARP will be infinitely better at resisting stretch and fatigue than a one use TTY stock bolt.
But, I failed at teh collegez.
https://ls1tech.com/forums/generatio...oing-come.html
Whatever, i see u are staying stock so that fits your original post "very basic rebuild". But at least you started sorting things out and are not decreasing your reliability/functionality.
Dont pass this opportunity to make good quench. U cant go back and undo this without another overhaul. Match your cam to your compression rather than making your compression to match your cam.
cardo











