Thread: 406

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You probably wont see low 12's with stock vortecs. I know it's easy to spend other peoples money but I would either run the vortec's until you are able to get a better set of heads or just start now with a better set. I would not invest the money into the vortec's, if you were going to do that sell your heads on e-bay (it's crazy what they sell for) take that money and the money it would cost for valves, springs etc. plus machining and you would be close to a new set of aluminums, and the aluminum would help with your compression as far as detonation.

Originally Posted by vortec king

thanks Ron B. for recongnizing the crankshaft confusion! people, i'm not using a 350 crankshaft! it's a 400 crank with turn down mains, meant for a 383 stroker.

love to see low 12's possibly high 11's.if my vortecs can't do this, then i need to know before i invest money in them.


and by the way if you have something write thats not relate to this post, then don't write it,it's annoying when two people have huge arguments thats not directly related to the topic, especially on someone elses post, if you want to argue, start your own post

I was never confused as what you wanted to do with the crank. Being turned down already meant to me that it was most likely already hammered on in a 383 and it may be fatiqued already. Eagle cast cranks are too cheap to chance the build with a crank of questionable life left in it.

Your Vortecs (STOCK) will make some nice torque numbers on the 406. I wouldn't put money into them such as valves and porting. You will do better putting thtat money towards a bigger head. (190-200cc) Just remember, the higher you build your power band, the more you must turn it to get there. A lot of other factors need to be discussed as to what it is capable of running. It will come down to the weight of the car, the gearing, and the stall. Not to mention traction also. It takes 400hp to push a 3500lb car into the 11's when everything else is setup right.

There was no arguing. Typhoon asked a question that was revelant to cranks and the info I wrote should help you also when you decide what to do for a crank.

Hey Ray,

I want to thank you for that explanation of the differences in the cranks, depending on the rod length. Your post was totally within the parameters of this topic. Some say ignorance is bliss, I say that it is just ignorant. So thanks for causing me to become none ignorant.

I have heard from several machinist that they dislike Scat cranks because they are usually too hard to balance. But with what you have pointed out to me now so wonderfully, I believe that these cranks which have had difficulty in being balanced, is due to the fact that someone ordered the wrong crank for the rod they were using.

Just two days ago I was looking at ordering a new rotating assembly and the options of different cranks came up with the parts store clerk, and he too did not know why there was a difference in cranks depending on the rod length.

Myself, I thought that just maybe the chamfer was different or something like that, but I never would have suspected balancing was the determining factor.

Strange how sometimes one learns something new even when the topic isn’t even geared to that. So again, thanks my friend.

YOU, have a great day.
Bob.

Might be best to know what your piston, pin, and rod weights are before buying a crank to make sure their weight is ok for balancing with the Crank you buy..... A little checking now can save you $$$ and grief down the road....

Sometimes I've gained a lot of really good information on relplies that may not seem directly related to the primary thread... Good information is good information no matter who it comes from or how it is gained.... Just a small group here who consistently provide answers to questions that are accurate and well thought out..... and occasionally the topic does wander a bit.... but I sure wouldn't want to allienate anyone who has good information, next post might not bring any responses.... JMO

Dave, have I ever told you that I love you. I am going to take your advise.

BTW, in my judgement, every post on this thread has been pertinent to a sbc build, especially the posts that dealt with the differences between a 350 journal and a 400 as well as the post that dealt with “30 year old has been 400 cranks” which have been turned to fit a 350 journal and then that these can be used in a 400 again, wow. And as if I ever would. Why would anyone use a fatigued crank which probably needs another machining job before one can use it and all this at a cost of $150.00 when one can buy a stronger brand new one for around $200 not to mention the cost of bearing spacers!!!!???

The net is a breeding ground for misunderstanding and the sooner the poster learns to add a little salt, the better off everyone will be. Think about it, even when two or three people who all happen to have English as their primary language and these then communicate, how often do we have to ask the speaker to say it again or in different words, explaining what they meant. Rarely when one is in person, do we jump on the listener for misunderstanding but rather in an apologetic manner, the speaker tries to communicate again without being rude. At least that’s what I have witnessed in those who are seasoned men.

Having said that, it would appear that the younger generation has lost that. The moment they see an opportunity to defame someone, to jeer anyone, to mock one etc, they go for the throat, and when push comes to shove, all is in jest supposedly and that is their apology which really translates into being arrogant.

Hey, the weather has really turned around out here. It is 7 C above today and all the snow is gone. To the foreigner this translates into 43 above F. Oh, wait a minute, maybe I am the alien. Wonder what the temperature is then? Oops, I’ve done it now, I’ve changed topics. I was going to delete this part but I had already clicked on “POST”.

Originally Posted by TyphoonZR

Dave, have I ever told you that I love you. I am going to take your advise.

BTW, in my judgement, every post on this thread has been pertinent to a sbc build, especially the posts that dealt with the differences between a 350 journal and a 400 as well as the post that dealt with “30 year old has been 400 cranks” which have been turned to fit a 350 journal and then that these can be used in a 400 again, wow. And as if I ever would. Why would anyone use a fatigued crank which probably needs another machining job before one can use it and all this at a cost of $150.00 when one can buy a stronger brand new one for around $200 not to mention the cost of bearing spacers!!!!???

The net is a breeding ground for misunderstanding and the sooner the poster learns to add a little salt, the better off everyone will be. Think about it, even when two or three people who all happen to have English as their primary language and these then communicate, how often do we have to ask the speaker to say it again or in different words, explaining what they meant. Rarely when one is in person, do we jump on the listener for misunderstanding but rather in an apologetic manner, the speaker tries to communicate again without being rude. At least that’s what I have witnessed in those who are seasoned men.

Having said that, it would appear that the younger generation has lost that. The moment they see an opportunity to defame someone, to jeer anyone, to mock one etc, they go for the throat, and when push comes to shove, all is in jest supposedly and that is their apology which really translates into being arrogant.

Hey, the weather has really turned around out here. It is 7 C above today and all the snow is gone. To the foreigner this translates into 43 above F. Oh, wait a minute, maybe I am the alien. Wonder what the temperature is then? Oops, I’ve done it now, I’ve changed topics. I was going to delete this part but I had already clicked on “POST”.

WOW!!!!,So you love Dave.
I know some of you guys are good friends but I never knew about this.L.O.L.
May we all come togther and give each other a big hug.
Now that feels good.

Originally Posted by erik erikson

WOW!!!!,So you love Dave.

Hahaha, I never said that. I was just wondering if I had ever had a lack of judgement in his presence,

...know what Erik, I do love you guys. "You" meaning = those who regularly give up of their knowledge in a gentleman type manner for the benefit of those less knowledgable in the wrenching hobby and doing so in never a condescending way.

Originally Posted by TyphoonZR

Hahaha, I never said that. I was just wondering if I had ever had a lack of judgement in his presence,

...know what Erik, I do love you guys. "You" meaning = those who regularly give up of their knowledge in a gentleman type manner for the benefit of those less knowledgable in the wrenching hobby and doing so in never a condescending way.

That was a close one,
I thought I was on one of reality shows for a minute.

Well, I think I know what ya meant...... But if I've misinterrpereted, I better let ya know right now that I ain't no cheap date!!!!!!!!!!

Jumping in here just for fun.... One other thing with the Crank designed for 6" rods. If you use a 5.7 rod the counter weights will hit the bottom of the pistons. ( Know this from personal exp. ) So best to match.