my dart little m build

[malibu1979]

end of drag season 2008 i took my 377 to the maching shop to get some work done neverless to find out that the block was cracked in 6 places , talking to the machinest i thought ok get new dart block and put my internals in. ok fine ordered a dart block 350 mains 4.125 bore in the intenchions of using my internals from the old block . then to find out my rods are over 10 year old alum. so now looking at a stroker kit and were to buy and what size to build looking at doing a 427 ( but don't know how much machine work it will take to use a 4" stroke crank or should i just go with a 415? so now been looking all over the net trying to find a good rotator but i guess i first need some help 427 or 415

[want-a-be]

What RPM are you wanting to turn? What head are you running? Answer those 2 questions and I can give a better opinion.

Don

[malibu1979]

with the old 377 i was shifting at 7600 , running brodex track1's
the car is a 79 malibu weighs in @ 2695 with driver , powerglide 1.82 w/brake , 32/14 goodyears ,5.29 rear gear. but don't know what the new combo should turn

[want-a-be]

If you send the heads off to get ported by someone who is good then I'd consider the 3.875" stroke crank. But if the heads are unported I'd stick with the 400 inch engine. You'll get the best of both worlds with the 400,... imo.

Don

[malibu1979]

the heads have had port work done , the best et with the cracks in block 10.32

[want-a-be]

Do you have the flow numbers? What carb, intake, cam, compression and ignition are you running? Is the Distributor locked out? Are you running Power valves? What converter are you running? It's stall? Trap RPM? What is your MPH on that 10.32?

Sorry for all the questions,...but others that will post will want to know everything possible about your combo. I won't be the only one giving thoughts on a direction. There are some pretty good guys hanging out here at Dart willing to help out when possible.

Thanks, Don

[malibu1979]

flow #'s no they were my old machinest spare motor heads , holley 750hp ( no power valves) , roller cam ( i will have to find specs ) holley strip don intake , 13.5 to 1 compression , full mds ignition locked out distr., coan 5500 stall , trap rpm 7600 , trap speed 132 mph

[want-a-be]

This must be in the 1/8th then?

Don

[malibu1979]

no 1/4 mile times

[want-a-be]

Yea,... I'd run the 400,...the heads you have will support that inch better then the larger cubes imo.

Don

[malibu1979]

so you saing a stock stroke 400 kinda defeats the reason to buy a dart block . i guess i should of asked before i just wasted money on a dart block have 2 509 400's in the garage thanks for your time

[want-a-be]

Trust me,...you didn't waste your money on that Dart Block. If you're wanting to build a 415ci engine. Don't let me change your mind. The stock 400 blocks are junk imo. Sure they can live for a bit. But in the long run you just waste the money in prepping stock 400 blocks. For race applications that is.

If you Build a stock 400 block. Then put that same rotating assembly in a DArt block then you'll make more HP. They are just a better foundation for racing.

Don

[malibu1979]

260/ 272 durration at .050 (solid roller) .630 lift (int. / exh. 106 center
heads flow benched @.700 intake 297 @.700 exhaust 232
had my machinest fax over flow sheet

[lun40119]

Gonna need new heads to go above 400inch. I am picking up my short block and heads on sunday. 400inch Dart block, cam is 276/284 at .050 650ish solid roller, my heads flowed 310/225 @ .600. Weigh the options, bigger with new heads, or build the 400 and stop worrying about running over the crank at the eighth.......

[malibu1979]

so what you recomond for my app. what stroke crank to go with my 4.125 bore

[malibu1979]

what cam and heads do i need to use to get this car in the 9's n/a powerglide 1.82 w /break , 5.29 rear gear 32/14 slicks car should weight in @ 2600 with driver coan 5500 going through traps @ 7600 wanting something that will work with my current car setup backhalf 4link coil over

[lun40119]

On prosystems 1/4 calculator it says 2600 at 9.80's takes 553 hp. My combination will get you there, and then some. If you want to get new heads, build the 4" engine, if not, build the 3.750.

[Awesome Bill]

You can take your assembly, put a new set of rods in it if you like, really don't need them and run 9's all day long with the new Dart block. I would have the rotator checked, including balance job. We run one of these assemblies like this for years in a 3000lb street Nova and run 10.0's with heads pretty much like yours but steel. You out of power and don't even know it. Your carb is too small for your rpm your running with the cubic inch you have, your gear is too much to get you into the 9's because your engine makes now power up above 7200 or so.

So even if you get a 427 or 434, you will actually run slower. Your GEAR is way to much, it seems like you have decent MPH for 10.00's right now. Your out to lunch on the application. Your converter may be a little tight right now if you ask me. Have you ever flashed it to see where it is right now? REAL STALL speed for HP. Your only making 475hp right now to run the 132mph if we use the MPH for weight. So there is a ton left in your combo now.

If you want to run, your stuff now is good, you just need some fine tuning. You only need 530 hp to run 9.80's @ 137mph. Your just not looking in the right place nor are you getting proper advise buy going with more crank and keeping the 5.29 gear? That is for a short stroke high rpm engine. 3.75" cranks or larger do not need that at all. Let me know if I can help. Think about it.

[malibu1979]

Bill , thanks for the advice! what gear and carb size would you run? for the 3.750 crank?
paln on doing some change over on the carb also this winter but any advice is great thanks jeremy

[Awesome Bill]

the gear and carb size is supposed to be for what hp your going to make. I would start with 4.56-4.88 and a 850 would be my pick. Lot of variables here. I have used 1050 carbs with this combination with the 3¾ crank and have a customer running the stick class that is very popular in PA and he is killing them boyz. He has been 8.55 @ 158 with a N/A 406. It was just back in for freshen up and we got another 14 hp with head ported and vavle job. We are up to 711 hp and hope it will run 8.45? Maybe. Its very hard to go faster when your going fast. Real Deal 406!

[malibu1979]

want to say thanks to bill , jake and most of all Don for the long chat we had on my build its finally up and running and sounds great
http://i17.photobucket.com/albums/b80/malibu377/winter%202008/malibuwinter2008024.jpg

[Dart Vader]

Nice!
You'll have to let us know how it runs at the track!

[lun40119]

BEAUTIFUL............Great Job man keep us posted....................................So what CI did you decide on..........haven't heard from you in a while?

[lun40119]

After looking close I see Dons name on that intake. Good choice!!!!!! ;)

[want-a-be]

Always nice to get new combination running for the first time. Can't wait to hear how it runs.

Congrats.

Don

[malibu1979]

well guys was a bad year for me got the motor in running and took to the track untuned it ran 6.50 @ 105 mph got home that day to divorce papers sittin on the table ( nice way to start my season ) needless to say car became large asset to her and was winterized and put in trailer with 4 passes on it. so now in a battle for car ( which so far losing battle). so Don if i end up winning the car out of this i will be needing your help one again ( cam heads and intake )

[Dart Vader]

That's terrible news... damn sorry.
Here's to hoping that things smooth out for you a little down the line.

[lun40119]

Yep, that sucks. I suppose she just wants the car so she can peddle it. Goodluck fella.

[Trmnatr]

malibu1979, sorry to hear this. Try to keep your head high and I hope it gets better

[want-a-be]

Yep, that sucks. I suppose she just wants the car so she can peddle it. Goodluck fella.

This may sound a bit out of wack but it's the twisted way I think:rolleyes:.

imo...she is playing with your head....let her have the damn car. Start wanting something you could care less about that she wants badly....cars come and go...you can build another. Take the wind out of her sails and it should stop any forward movement of her boat. jmo of course.

Don

[Awesome Bill]

Maybe not bad news @ all. 1 Woman will not share her time or heart with another woman, yes that car seems to be your mistress!. Obviously, she has not just one day said I am leaving, this is a long term thing that she is just fed up with. You have not changed and I am sure she give you ample time to rectify her needs. When you put racing ahead of family, or give to much time to it and not nowhere enough time to wife and family, it is out of balance. Be honest, when was the last time you spent that time and money on her since you have been married. And the money is not that important, its the time. When was the last real killer date you had with her like when you were dating her before marriage. You were hot enough to spend time with her then. Than is when you were trying to be a poser or a true lover? This is not a 1 sided quick decision, she is fed up with you and the car and she wants out because she is getting nothing with this. When a woman is done, shes done. She will take her heart and love and give it to another who will take the time with her. There are plenty of guys that will fill your shoes and never really love her?

On the other hand if you love this woman, go to her and tell her you will do anything, even selling the car to make it right, especially if you love her and think there is still a chance. I have been there done that and I can say I was way out of balance in time and my second love I thought. When your old and gray, that car will not take care of you, feed you, love you. Your planting seeds in the MANGROUND and can't see it only takes care of you. Rethink before you finalize any decision, is that car worth the one you said you loved before everyone worth your true happyness!

On the other hand, nice clean job and your et is around a 10.15 quarter mile time. Not to bad, and a very nice clean install! PM me if I can help.

[want-a-be]

wow Bill....nicely said. Didn't expect this kind of insight from you. Bill is totally right in a lot of ways.
If it applies to you then you need to listen.

My crast opinion came from watching guys go through this all the time. Not only in the car scene either. Sometimes there just isn't going to be way of pleasing her no matter what you do or say. When she decides to walk out on her man it's usually over. Then it's game on from what I have seen. Then it's a chess game. She will want what ever she thinks is most important to you. To win this deal you have to let go of any emotional attachment to the stuff you really want. Cause she will use it against you to get what ever she really wants. Turn that against her. You're playing poker now,...play the bluff as well as you can.

lol...enough from Dr Phill want-a-be....lol Sorry for the rant. I should just keep my opinions to myself on this subject. I don't like playing fair when the D word comes up though.

BTW,...no I don't have any problems with my marriage...that I know of anyways...lol

Don

[malibu1979]

Well Bill thanks for that bit of info but to tell you the truth I did see the relationship going south and knowing that I did try to make it right with her about it knowing we have an 8 years old daughter together I wanted it to work out more then anything in the world. But as you said and I found out the hard way that once a woman a says it’s over “its over” no matter how hard I tried to make it right . I offered to sell the car and to her response was always there’s no way I’ll let you get rid of that car. I never wanted to throw away 10 years of marriage.