Late this afternoon, a customer dropped of a new aftermkt SBC block. This thing is beautiful. The casting and machine work is top of the line. Far better than the DART blocks we get in.
I asked the customer what it was and he said he got it from ProComp.. He thought that it was an australlian casting.
Has anyone had experience with these blocks??
When I get to the shop tomorrow I will do some research.
Don't know if it's true but I once read on the CorvetteForum that Pro Comp stuff is made in China and often distributed thru Australia. When they first started importing heads, there was much negative feedback. I have heard that the quality of their new generation of heads is much improved. I have no personal experience but I'm sure if you Google the company, you will get lots of opinions.
Terry
Now. I read these posts on yellowbullet etc. Most are a year or two old and most are posted by armchair experts, wise azzes and China haters..(Wake up people!. Your political reps, taxes and tree huggers have made it way too expensive to manufacture in the US. I'm sad to say).
Only actual complaint was soft material in blocks.. I'm sure that has been remedied.
It was too late in the day for me to actually measure the block. But I know what to look for after building SBC's since 1965. I know quality castings/machine work. This block looks like no other I've seen, as a factory fresh block..
Post some pics Bob. The Chinese can do some superb work if you pay them for it. When Super Tigre R/C engines which were formally made in Italy sold to a Chinese firm I was bummed out . I have used Super Tigre glow engines ever since I can remember. I have since bought several Chinese Super Tigre glow engines and they exhibit excellent metallurgy and run just as strong as the Italian versions.
Sorry, I've never been able to down load photos on this site..
Today I was busier than a cat coverin crap. But, I did check the mains/line hone on this block. Right on the money. This thing takes the Aftermkt/Dart style cam bearings etc.
Honed to spec for the pistons with a few strokes of the CK 10. Nice round cylinders. Deck is perfect finish. NOT rough like a Dart block.
I talked to the distributor for ProComp in this area. The block is 100% done in Australia. Then shipped to China where it is marked made in China. Then shipped to the USA. Something about they save 8% by doing it this way..
Checked all the specs and the thing is right on the money. I swear it weighs as much as a big block.
Any ways the block went to it's owner today. Going to have a 4" arm, the Auto Tech pistons and two stage 750 hp. nitrous system.
You will be missing a lot. ProComp plans on being a major player in the high performance game. Besides most of the automotive parts now days are imported. No matter what brand name is on it.
oh, ya, make down under then shipped to china then here,, and you believe them..
maybe they shipped one block to be reverce engineered, then shipped the copies here..
I'll take a dart thanks..
I con't support the commies, doing so will end this country.
You will be missing a lot. ProComp plans on being a major player in the high performance game. Besides most of the automotive parts now days are imported. No matter what brand name is on it.
Absolutlely, why pay for an American part made in China when you can buy a Chinese part made in China for 1/2 the price?
I've noticed ProComp has been doing a lot of advertising lately, Sponsorships also.
Probably is cheaper doing the Aussie deal, most all China Steel is imported, $$.
Lets say I use to work for a company that made gear couplings. I ran a Okuma LC30 CNC Lathe. My job was to take the coupling and bore the hole in it and get the bore size to .0005 within tolerance. Big deal mcneil.
Anyways. Since the company starts getting some of these couplings from another one of our plants, which was in China, it wasn`t made of the same steel we had here in the states which I seen was always on quality wise, especially the harder red steel. The China pieces I used to have quite a laugh with. It only meant I`d be changing the insert alot more often due to one coupling would be so soft, the metal would sling off like globs of butter so the part came out oversized without a acceptable wall finish as well as bore taper. The next would be so hard it would kill the insert half way through the part meaning you were going to have to do it over plus get the size right with a new insert. Those things made for fun all night long. When the drill and tap guys got ahold of the parts that made it to them, the soft ones had threads that wouldn`t hold up to the thread checker, the hard ones were so hard a regular drill bit wouldn`t bore through them so they had to use carbide tip bits. I was happy when we finally stopped running those couplings and stuck to running our own. On the ones with the bigger bores, when clapped in the jaws the pressure had to be lowered to keep from knocking the part out of round. While this thread has nothing to do with the block Bob got, it sure showed me what china metal was like. This was years ago, but for some to be so soft it was like butter, and others to be so hard it killed inserts was plenty of lesson for me. The real kicker was, I wondered what the plant`s customers thought of those soft couplings when the run out was so great they likely failed the first time they were used over 2000 RPM. That was the first time I ever seen steel that was like rubber. Sure made me scared of china pieces after that.
It is common knowledge that these companies in China that turned out bad products and caused embarassment had CEO's that were executed,here in the states a CEO can screw up a company and walk away with millions in severance pay.Pro-Comp quality should be improving as I am sure they are keeping tabs on what we think of their products.
I did a lot of research on those chinese blocks, I have a free one if you want it just pay the freight and its yours.
Here are some good links to look over.
Again here are some links to look over on the last ProComp I tested and it was junk and alot of others agreed it was junk.
If you look at the pan rail the blocks are all done on a track system as there using dowels to locate the block like the chinese Dart look alike block[/b]
cnc/carl/mr Dart Dealer... I think you are having some kind of metal break down. you should get some professional help as your spaming all over the net AGAIN about a block you do NOT even sell lol.
BTW, for those that dont know, the procomp blocks and DART SHP blocks are cast form the SAME OE type grey iron.
The diffrence is the procomp version is a better casting that offers more bang for the buck over the Dart SHP version for less money.
He will say anything he has to, to sell a block. He is a professional parts trasher for compaines he does not sell. He's a self aggrandizing windbag.
He champions Dart at every turn. Just so people know what kind of opinion they are getting. That is important.
And you're right about the material. I know what it costs to cast a block. How is the SHP so cheap? I run one. It's a good block. But that doesn't mean there aren't other good products.
Those Chinese blocks are missing .200 material in the cam tunnel and with a small base circle cam it will expose the oil band of the lifter, I know I have one of those junk blocks in my shop LOL.
And the one I have brinnell tested 107 and the Dart was 200
The lifter bore placement and angles are all over the place.
I can see why someone might be tempted to try one. I mean, $1K less than a lil M... but if it were to fail, you stand to loose a lot more than the thousand you "saved".
But the racingjunk ad says from Australia, the alibaba ad says Shanghai...
EDIT I reread the racingjunk ad and it says the supplier is based in AU, not that it's made there.
That is John Supino from Paramus NJ just stalking me with a bunch of BS. He was a marketing tool for World Products but that did not last long. I wonder why.
I have had to many issues with World Products over the years and his nose got bent.
I deal with GM, Ford Motor Sports and Dart Products' At least Dart machines there products in house.
There is varying degrees of quality coming out of china. If it is built like crap, its because that was the spec they were handed.
Truth be told, many of the chinese factories have very high tech infrastructure and can built to whatever spec they are given. It is possible to get very high quality stuff out of china.
The reason being, is that the when you build to a higher tolerance, it gets more expensive, even in China. This makes it economically not feasible. The higher the tolerances, the price goes up, and it may as well be made here. Not always the case, but something to consider.
Now, as far as the lifter bores being off. Not sure how that happens. The machining is done all in one sweep. if the lifter bores are off, I'd expect everything to be off, not just the bores. I'm not sure how it was checked, and not even saying that's wrong. I am saying is consider what would have to happen for that to be the case, all the other machining that would have to be off for that to happen.
It just doesn't seem likely that ONLY the lifter bores were off if it were put in the jig crooked.
Carl, there is something seriously NOT right with you.
with the kind of crap you have spammed all over some forums (and being banned on others) I would not trust or spend 2 cents with ANY business that goes/does what you have.
Carl, there is something seriously NOT right with you.
with the kind of crap you have spammed all over some forums (and being banned on others) I would not trust or spend 2 cents with ANY business that goes/does what you have.
No carl, your not speaking the truth. You claim to have ONE odd ball reject block that youve based ALL your "china junk" propaganda off of... and yet guys have been putting 1000/1200+HP through china cast cranks, rods and Blocks now for over 5 years now with NO problems.
I was looking at buying a SHP W block recently but when I DID MY OWN home work on it looking at the diffrent block options I desided to buy one of the china w blocks instead as it offered me more bang for my buck. Because some guys deside to buy china blocks, cranks, rods or other parts is NO reason to slam/bully them for it.
bu china junk if you want.. I will not..
I support jobs here.. I don't support SLAVERY, and buying goods from china, is supporting SLAVERY, you can spin it any way you want to..
Apple, is in hot water as they are say'n they (wink wink) had no idea.. even tho, employees of apple was at the factory all the time..
AMERICA still supports SLAVERY.. you vote for it with your cheap ***** ways..
when I have a choice, I'll always buy made here.. or anyother country's goods that don't allow slave labor CAMPS..
buying this garbage is not a "bang for your buck" only a fool thinks so..
bu china junk if you want.. I will not..
I support jobs here.. I don't support SLAVERY, and buying goods from china, is supporting SLAVERY, you can spin it any way you want to..
Apple, is in hot water as they are say'n they (wink wink) had no idea.. even tho, employees of apple was at the factory all the time..
AMERICA still supports SLAVERY.. you vote for it with your cheap ***** ways..
when I have a choice, I'll always buy made here.. or anyother country's goods that don't allow slave labor CAMPS..
buying this garbage is not a "bang for your buck" only a fool thinks so..
OH AND PEOPLE WONDER WHY WE HAVE THE ECONOMY THAT WE HAVE, cause fools keep supporting everyone elses, but, our own..
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