Those custom, one-off, made in house slide-a-links?
=P
Greg Conner
1996 RC
3.9 hybrid
>From: "Chad Evans" <hemidak@msn.com>
>Reply-To: dakota-truck@dakota-truck.net
>To: dakota-truck@dakota-truck.net
>Subject: RE: DML: RE: 318 vs 390 power
>Date: Thu, 16 Dec 2004 12:24:18 -0600
>
>
>He builds custom dakota r/t's if you must know. Custom as in one-off parts.
>Not some parts from a catalog. Builds 99%(close to it anyway) of the parts
>in house.
>
>His R/T that ran 12.7's was on slicks and using slide-a links. That was a
>mild 408 that is driven on the street.
>
>
>>From: "greg conner" <dodgeboy93@hotmail.com>
>>Reply-To: dakota-truck@dakota-truck.net
>>To: dakota-truck@dakota-truck.net
>>Subject: RE: DML: RE: 318 vs 390 power
>>Date: Thu, 16 Dec 2004 09:38:24 -0500
>>
>>
>>rut roh... super secret dakota project man...
>>
>>
>>
>>
>>
>>
>>
>>>From: "Chad Evans" <hemidak@msn.com>
>>>Reply-To: dakota-truck@dakota-truck.net
>>>To: dakota-truck@dakota-truck.net
>>>Subject: RE: DML: RE: 318 vs 390 power
>>>Date: Thu, 16 Dec 2004 01:33:32 -0600
>>>
>>>
>>>My boss's r/t 408 runs 12.7's N/A
>>>
>>>>From: "RayB" <bpracing@worldnet.att.net>
>>>>Reply-To: dakota-truck@dakota-truck.net
>>>>To: <dakota-truck@dakota-truck.net>
>>>>Subject: DML: RE: 318 vs 390 power
>>>>Date: Thu, 16 Dec 2004 02:22:54 -0500
>>>>
>>>>
>>>>All things being equal, more cubes + longer stroke = more power...but
>>>>most
>>>>importantly for a daily driver, more torque. If you're not going to
>>>>race
>>>>this thing then build whichever engine for torque instead of high rpm
>>>>power.
>>>>Consider your driving habits and if you seldom have the room to wind it
>>>>out
>>>>through the gears, you will be much happier with lower rpm torque.
>>>>
>>>>You didn't mention what gear ratio you have but something in the 3.90 -
>>>>4.30
>>>>range will also get you moving a lot quicker. A 2400 stall converter
>>>>would
>>>>also be nice.
>>>>
>>>>I can give you a couple pieces of advice from personal experience. That
>>>>RT
>>>>cam you have is no great improvement even in a 318 (too mild). The RT
>>>>heads are gonna hurt a 318 and are unnecessary even on a 390 if your
>>>>goal is
>>>>low to mid range torque. You can do much better with a mildly ported
>>>>stock
>>>>head with 1.97 intake valves for a lot less money. The RT heads simply
>>>>have
>>>>ports too large for a relatively low rpm street engine. I've
>>>>encountered
>>>>several 360 and 408 Daks that can't come close to the performance of my
>>>>318.
>>>>Check it out at the dragtruk link in my sig. It's all in the
>>>>combination
>>>>and bigger done wrong isn't always better.
>>>>
>>>>Whichever engine you ultimately decide to build, it would be wise to
>>>>discuss
>>>>your combination and goals with a cam manufacturer (not just a vendor)
>>>>before choosing the cam and rocker ratio. As for superchargers...I
>>>>have a
>>>>friend with a Vortec blown 318 that runs mid-12's @ 110 and it's also
>>>>awesome on the street. HTH.
>>>>
>>>>RayB
>>>>http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
>>>>
>>>>
>>>> > -----Original Message-----
>>>> > From: kvmac45@comcast.net
>>>> >
>>>> > Question on power. I am in the process of accumulating parts for
>>>> > an eventual
>>>> > engine rebuild/swap for my 92. Have the current mods that will be
>>>> > on the new
>>>> > engine.
>>>> >
>>>> > M1
>>>> > MSD6AL
>>>> > Blaster SS coil
>>>> > K&N filter
>>>> > March underdrive pulleys
>>>> > Thorley headers
>>>> > Ported/polished TB - 50mm
>>>> > Electric fan conversion
>>>> > Mopar PCM
>>>> >
>>>> > I also have the Mopar RT cam 5249549
>>>> > 260/264dur/.458/.467lift. It is not currently in the truck. I figure
>>>>it is
>>>> > probably too small for a 390, but will work great in a 318 with my
>>>>current
>>>> > mods. Reason I got it was the price - dirt cheap. I bought it
>>>> > before the 390
>>>> > bug hit. Also have a set of 1.7 Crower rockers that are waiting
>>>> > until I get the
>>>> > heads.
>>>> >
>>>> > I will be getting a set of RT heads regardless of what engine I
>>>>ultimately
>>>> > decide to put in. I figure 1.92 for the 318, or 2.02 for the 390.
>>>> >
>>>> > Just how much of a power difference will I see in a 390 vs. a
>>>> > strong running
>>>> > 318 with the above mods, including the cam and heads? Trying to
>>>> > decide if it is
>>>> > really going to be worth the extra expense to get the parts for a
>>>> > stroker. This
>>>> > is my daily driver, so downtime is limited to weekends only. As a
>>>> > result I will
>>>> > be building up the engine on the side, then performing the swap
>>>> > when it is all
>>>> > ready to go. This is not a drag project or anything like that. I have
>>>>190k
>>>> > miles on the engine, with no opportunity to get another vehicle
>>>> > anytime soon,
>>>> > except for a beater car, which I do not want to do.
>>>> >
>>>> > I know for the 390 I will need to get the block bored and clearanced,
>>>>new
>>>> > pistons and rings, connecting rods and a 4" crank. For my truck I
>>>> > figure a 360
>>>> > PCM and 21-24# injectors would be a good idea too. Probably bump
>>>> > up to a 52mm
>>>> > TB, and eventually one of the high flow Holley fuel pumps.
>>>> >
>>>> > Ultimately it may come down to money, but I want to give it a
>>>> > shot if the gains
>>>> > are going to be worth it. Of course, I could always go with the
>>>> > 318 and then
>>>> > throw a s/c on it later next year too.
>>>> >
>>>> > TIA, sorry for the long winded post.
>>>>
>>>
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