AdamRushka
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Registered: 12-2007
Location: Danbury CT
Posts: 22
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small block mopar build help
Im working on a 71 Dart Swinger, its mainly going to be a street car but I also want it to be FAST legal.
The car has 355s and a over drive 833 right now (3.09:1 first gear)
I have a 72 360 block that needs a crank so I was thinking using a 4" stroker crank.
I will also have to use 915 heads,
A thermoquad intake and carb
and 71 340 exhaust manifolds.
I would like to keep it pump gas friendly so under 10:1 ?
Cam, should I just go straight to a solid roller ?
It needs to sound stock so Im guessing 112 or 114lsa and maybe 220-230 @.50" tops ?
What about heads ? Im thinking a port job for this type of build is going to be a lot different then fir headers and single plane ?
What about the intake and exhaust manifolds ?
Im looking to be the fastest car out there but I would like to see some low to mid 12s but Im willing to give up power for driveablity
--- 71 Dart Swinger 340 - 4 speed
www.forabodiesonly.com
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3/2/2008, 6:09 pm
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CJK440
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Registered: 08-2007
Posts: 377
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Re: small block mopar build help
Adam,
The engine in my car now is a 360 with a cast crank, H beam rods and SRP forged flat tops. I bought it as a balanced rotating assembly. It brings the compression to 10.5:1 which I'll use a mix of pump/race gas or use Torco Accelerator if I am going to put street miles on it.
I have J heads ported by Dwayne Porter and a solid roller spec'ed out by him also (don't know the numbers offhand). Minimal work to the stock iron intake and even less on the iron manifolds.
Made my duster run 12.40 @ 114 with a regular 4 speed and I know the combo still needs work. Drivability is fine.
I'd give Dwayne a call.
Last edited by CJK440, 3/3/2008, 10:48 am
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3/3/2008, 10:48 am
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AdamRushka
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Registered: 12-2007
Location: Danbury CT
Posts: 22
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Re: small block mopar build help
Thanks Chris, Wish I kept that 34- long block block I bought from Dwayne .
--- 71 Dart Swinger 340 - 4 speed
www.forabodiesonly.com
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3/3/2008, 11:17 am
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RalphsRapidTransit
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Registered: 08-2007
Location: www.RalphsRapidTransit.com
Posts: 234
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Re: small block mopar build help
Hey Adam, My F.A.S.T. Small block for Shar's Demon is;
340 Block w/ 416 Stroker Kit From Scott Brown, Duane Porter Heads, Solid Flat Tappet Cam. Total package will be around 12.5 to 1 Comp. Thermoquad, Hogged out intake and Stock Manifolds, 904 Tranny with 4.10 Gears.
Duane is the man with F.A.S.T. Heads he knows what it takes to make them come alive..
--- www.SuperCarRaces.com
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3/4/2008, 12:59 pm
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