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 Post subject: Engine Question
PostPosted: Sun Jun 17, 2007 5:43 pm 
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1 BBL (New)

Joined: Sun Jun 17, 2007 5:30 pm
Posts: 3
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Hey there I am new to this forum. My name is Nick and i own a 1970 Dodge Dart Swinger SL6. I want to do some mods to it and just see what you guys think. If you think one of the mods isnt a good idea let me know I am new to all this so here goes........

1. Headers
2. Demon 390 Carb
3. Roller Rockers
4. Head from clifford performance
6.bore 100 over
7. lighten the crank
8.supercharger

like I say im just all new to this so if something doesnt make sense let me know.

Nick

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 Post subject:
PostPosted: Sun Jun 17, 2007 5:48 pm 
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Turbo EFI
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Joined: Tue Feb 22, 2005 5:35 pm
Posts: 1044
Location: Maine
Car Model:
Any build... any build at all, has to start with a goal and a use in mind.

How fast do you want to go? And where do you want to drive it? Street? Strip? Daily driver? Highway? City?

-Mac


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 Post subject:
PostPosted: Sun Jun 17, 2007 5:58 pm 
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SSRN National Champion
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Joined: Thu Oct 31, 2002 3:56 pm
Posts: 1967
Location: Dalton, GA
Car Model:
What is this car going to be. Im a Little woried about the 100 thousand bore. Thanks Ron Parker. :D











Jaggers Fabrication Slanted Attitude Dart


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 Post subject:
PostPosted: Sun Jun 17, 2007 5:59 pm 
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Board Sponsor & SL6 Racer
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Joined: Fri Nov 08, 2002 4:48 pm
Posts: 5835
Location: Burton BC canada
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Get a head from Mike Jeffries.

Bore the block 60 over.

Dump the roller rockers and leave the supercharger till later.

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 Post subject: Re: Engine Question
PostPosted: Sun Jun 17, 2007 6:10 pm 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8710
Location: Silver Springs, Fl.
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Quote:
Hey there I am new to this forum. My name is Nick and i own a 1970 Dodge Dart Swinger SL6. I want to do some mods to it and just see what you guys think. If you think one of the mods isnt a good idea let me know I am new to all this so here goes........

1. Headers
2. Demon 390 Carb
3. Roller Rockers
4. Head from clifford performance
6.bore 100 over
7. lighten the crank
8.supercharger

like I say im just all new to this so if something doesnt make sense let me know.



Nick
Need to know the intended purpose, first, but:

3. no, not needed, for 99.9 % of the time. More trouble and expense then they are worth.

4. No, No, No. Get a head from someone that knows what they are doing, like Mike Jefferies

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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 Post subject:
PostPosted: Sun Jun 17, 2007 6:20 pm 
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Supercharged
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Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
For what it's worth, I would start with the basic build. 100 thousandth is a really large overbore and you would need to very carefully check you block before doing it, .060 is much more likely to be satisfactory. Do thing is a planned sequence and see what you get from each step before sinking thousands into a build and possibly being disappointed.

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'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.


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 Post subject:
PostPosted: Sun Jun 17, 2007 6:30 pm 
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1 BBL (New)

Joined: Sun Jun 17, 2007 5:30 pm
Posts: 3
Car Model:
well for the street I do not have much knowledge with what I am doing I will admit I dont want to sound like I know everything because I dont but I would intende on using it for street use. By the way how do i contact mike jeffries?

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 Post subject:
PostPosted: Sun Jun 17, 2007 6:38 pm 
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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24447
Location: North America
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Right now, the main thing your "shopping list" is going to do is cost you a lot more money than you need to spend. As the others have mentioned, it's best to start from the start (specific goals for the car in terms of intended purpose, performance, economy, etc.) rather than from the end (particular parts). Stay away from Clifford. Driving on the street? then you don't need a 0.100" overbore. You don't need roller rockers. You don't need to lighten the crank. The Demon 390 carb might be workable for you but will cost a lot more than you need to spend and is probably bigger than you need. You'd also probably be happier with Dutra Duals rather than headers on the street.

Take a few steps back and a few deep breaths...it's really easy to get all excited about a buildup featuring all the high-dollar, fancy special trick parts and the techniques that always get splashed across the covers of those stupid car magazines. The result of doing so instead of starting from a purposeful plan is usually expensive and disappointing; we just had a member here on the forum finish doing just such a buildup, over a year's worth of expense and effort, and now he's selling the engine 'cause it doesn't work the way he dreamed it would. We all told him that, he didn't listen and swore he was right and we were wrong, now he's taking a loss. Don't let the lesson escape you!

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 Post subject:
PostPosted: Sun Jun 17, 2007 6:59 pm 
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1 BBL (New)

Joined: Sun Jun 17, 2007 5:30 pm
Posts: 3
Car Model:
I will take your advice sir thanks for your input.

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Nitr0 N1ck


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 Post subject:
PostPosted: Sun Jun 17, 2007 7:38 pm 
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SSRN National Champion
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Joined: Thu Oct 31, 2002 3:56 pm
Posts: 1967
Location: Dalton, GA
Car Model:
Dans right just doint trow money in a project until you decide what you want . You can spend a lot of money and not get the projejt you want. So tell us your project and this is the site that can adivice you through knowledge and experence. Thanks Ron Parker :D









Jaggers Fabrication Slanted Attitude Dart


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 Post subject:
PostPosted: Mon Jun 18, 2007 10:13 am 
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Guru
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Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
Car Model:
Does your 70 Dart Swinger have front and rear anti-sway bars, good shocks and tires?

If the car is running OK, may-be you start with a good engine tune-up and do a little suspension up-grade to get better handling, that will make the car a lot more fun to drive for a lot less money.

If you do want to build a performance engine, start looking around for a good rebuildable "core" engine. Find a 68-75 SL6 that you can start working on and build-up over time. Swap it in when the time is right but enjoy driving the car until that time comes.
DD


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 Post subject: Re: Engine Question
PostPosted: Mon Jun 18, 2007 12:30 pm 
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Board Sponsor & Moderator
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14494
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
Quote:
Hey there I am new to this forum. My name is Nick and i own a 1970 Dodge Dart Swinger SL6. I want to do some mods to it and just see what you guys think. If you think one of the mods isnt a good idea let me know I am new to all this so here goes........

1. Headers
2. Demon 390 Carb
3. Roller Rockers
4. Head from clifford performance
6.bore 100 over
7. lighten the crank
8.supercharger

like I say im just all new to this so if something doesnt make sense let me know.

Nick
1. Good
2. 390 Holley, Demons have way too many manufacturing "issues"
3. Call RAS for a set of rebuilt stockers. Way less money and rock solid reliability
4. Remove the name of Clifford Performance from your brain. Mike Jeffrey 308/324-3576. Call between 8-10 CST
5. ? :shock:
6. I wouldn't be a bit scared of a +.100" motor for a race car, little leary of it for a driver
7. Waste of money and time
8. This would be a last addition. I prefer nitrous, but I'm a little weird anyway.

Welcome to the board! Where you at? :D

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 Post subject: best wishes
PostPosted: Mon Jun 18, 2007 1:51 pm 
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Turbo Slant 6

Joined: Tue Dec 12, 2006 7:44 pm
Posts: 790
Location: New England
Car Model:
For an in depth look at what not to do, read the "Pics of Eileen" thread- alluded to by Dan above. You might be interested in the 'Erson group cam buy' thread. Many think the /6 can use a little more than stock cam, esp. with better intake and exhaust flow.

_________________
/6 '67 Barracuda convertible, electronic ignition, 4-OD, street cam, SBP KH discs, 3.55 SG 7.25" 1" t-bars. Bilstein.
340 '67 fastback, Doug Nash 5-speed.
1988 Toyota pickup work truck


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 Post subject:
PostPosted: Mon Jun 18, 2007 2:20 pm 
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Turbo EFI
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Joined: Wed Sep 20, 2006 7:08 pm
Posts: 1114
Location: The Hand
Car Model:
What kinda flow #s does Mike J get? I assume this would be a big valve full port, comp valve grind...etc.


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 Post subject: Re: Engine Question
PostPosted: Mon Jun 18, 2007 5:25 pm 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8710
Location: Silver Springs, Fl.
Car Model:
Quote:
3. Call RAS for a set of rebuilt stockers. Way less money and rock solid reliability
Another option is NOS rockers from E-Bay

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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