318 f.a.s.t class , oem stock appearing

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ValerianMagnum

ValerianMagnum

the little car that could
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With all the things that are going with the f.a.s.t class , i see the more and more 340 small blocks getting stronger and stronger in the stock oem look , i REALLY want to do a 318 2 barrel set up because my barracuda is a 318 3 speed from factory , runs a strong 5.9 but really thinking to swap the factory 318 to stroke it or the heavily modified all the internal and have some huge powerfull heads to wake it up , thinking or running with exhaust manifold ported and extrude honed and a modified aluminium or iron intake / same with the heads , what do you guys think about a stock looking 2 bbl 318 with manifolds running in the 12s or less ! Im pretty sure that this combo can be done with a 5.2 magnum or 318 La
 
The 318 manifold will do it. I put a 5.9 magnum with .488 lift, single plane 700 cfm ran like a big dog through 318 a body manifolds.
 
Still wondering how a powerfull 2bbl stock stroke can run or even stroked to 390s with a 2 bbl can do , never heard or seen something like it
 
I do believe the rules state has to be the factory casting # intake and heads for that year car. Blocks don't matter.
 
It will be a street car , but want the people to say what the hell is that small block , and to see theyre faces when they will see a 318 2 barrel...so its never been done ?
 
OK. If just running a street car then go for it. Painted aftermarket intake and all. I just thought if you were going to race in F.A.S.T. you would have to use the factory stuff.
 
somewhere in 71(?) the 318's had the Rochester 2-bbl. that carb was used a lot in the 2-bbl. stock car class so I'm sure there is a lot to do there for airflow/hp. porting and extrude honing the manifolds would help. sounds neat!
 
I think the main problem with 2bbl other than being very restrictive is the ability to tune it. How about running a 360 2bbl and intake mopar guys would know it's not stock but brand X guy wouldn't have a clue. And extrude honing doesn't gain much I'd leave that for the end if you got spare cash laying around 360 manifolds look like 318 and flow a little more.
 
You better have a boat load of money if you want to be competitive those guys have more money in their engines alone then most have in a complete car..
 
F factory
A appearing

Equals a stroked and poked block
 
factory casting heads and intake? +.040 over 318 with a 4.25 stroke crank 2.02 360 valves and a split Dominator 2bbl. Thats a 416 with a skinny *** cylinder! Rules are Rules...
4500split_tw.jpg


now just get this to line up with the 2bbl intake.....
 
At some point you need CFM's, and the factory 2bbl might be a big limiter..... Just say'n. However, I say "go for it"
 
I think the whole problem with this is for most people under a stock breather it's not to obvious that your running 2bbl and there's no way for the casual observer to know if it's a 273/318/340/360/408 etc... so the manifolds are the biggest sleeper factor. I get the appeal wanted to do the similar thing to a granny /6 a body with hidden Nos but unless your hustling street races I don't really see a point (around here real street racing die along time ago) your just gonna kill 50 plus hp for a 2bbl and manifolds.
 
FWIW, MP has W2, 2bbl. Intakes to fit into the rules. Not that, that helps you, but it should provoke some thoughts about 2bbl.'s and power abilty.
 
Well, if it's just the 2bbl you want to say, then there's the 500 cfm Holley 2bbl... that on top of an aluminum intake would be a 2bbl, and they can make some good hp.
 
A buddy of mine did a 360 with a 2bl in a 73 dart 4spd a few years back. Just because. I think he had a heck of a time getting into the 13's and that car was gutted pretty good. On top of that the horrible fuel mileage. If you put your mind to it you can get a combination to run good. If you know where your biggest restriction is, there are always ways to get around it.
 
ValerianMagnum said:
Still wondering how a powerfull 2bbl stock stroke can run or even stroked to 390s with a 2 bbl can do , never heard or seen something like it
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I think the manifold and carb would choke it bad, also they have a a ton of money in a full race rollerized 904 trans that knocks half a second off of a built 727 and even more off a manual trans
 
I never drove a big 2bbl 500 cfm or the 2bbl dominator that we see in the picture , can it really run in the streets ? Im verry used to drive all my cara with 4 barrels . My cuda runs a 360 magnum crate its fun theres power but still i would love to put back that 318 that is lying around in the garage and make a monster with it but to keep it as a 2 bbl and iron manifold car..i dont mind if it becomes a stroker..but i would like to run a 318 cubic inch to 400 or 500 hp and still look stock knowing that i need bigger gears but since the car is already a 4 speed i dont mind running 3 55 3.73 3.91 or more if we put the 318 back in
 
With the 360 intake for the larger carb there are possibilities. I've gone this route on a circle track car. I have also made an adaptor plate for the Holley 2300 500cfm and had the plate and manifold machined together for the larger bores.
 
I guess you need to clarify one thing: When you say "appear stock" 2bbl, I'm assuming you are going to run the factory 318 2bbl. If so, man, that thing is a choker. They are under 300 cfm's. Anyways, I don't know if you could massage it to flow even 375 cfm's..... You have a tall task getting 400 hp if you want to use the factory 318 2bbl and factory 2bbl intake...
Now if you just want to say you have a 2bbl, put 3 of them on there.... yeah, a six pack, that will help ya get up there in horsepower
 
But holley made a 2bbl demon carb , i have a 400c.i. 2 barrel carb to , and all these holley 500cfm out there can shurely be modified , im not shure about the 318 stock intake but still with wath we see in the fast class or all the stroker kits out there , there must be a way to get big hp and tq with a stock looking 318 never said it was staying stock but in apperance yes..or very very close to its oem look
 
ValerianMagnum said:
It will be a street car , but want the people to say what the hell is that small block , and to see theyre faces when they will see a 318 2 barrel...so its never been done ?
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It's done all over the USA in stock cars (dirt track). They gotta run 2bbl's. CFM's is CFM's, no matter if it comes in 2bbl, 4bbl, or 8bbl. No trickery there. Nobody gonna have a funny looking face... lol.
I thought you wanted it to look factory stock, meaning you would be using a factory 318 2bbl and intake, with manifolds. If you just wanna say you did it with a 318 2bbl, go visit the dirt track racers, they'll get ya started in the right direction, many pushing over 400 hp. Just not very street friendly....
 
[ame="https://www.youtube.com/watch?v=mGjTrhF25oM"]IMCA Northern Sport Mod Chevy 355 Race Engine 373 Horsepower - YouTube[/ame]

its a chevy motor , already the 318 is a better designed engine , and with a 390 stroker kit and a modified holley 2bbl carb and painted aluminium parts how cant it not do a good 400 hp and 400 ft pounds of torque if its not stroked , as i read everywere the 2bbl carbs are bad for fuel once modifed , but if a lot of work is done in iron heads or aluminium heads with some intake work and street friendly compression ratio it can be a killer little engine no ?
 
ValerianMagnum said:
but if a lot of work is done in iron heads or aluminium heads with some intake work and street friendly compression ratio it can be a killer little engine no ?
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No. No way, no how. Can't run aluminum heads in F.A.S.T. either.

What exactly are you wanting to do here, build a 'street' motor or a F.A.S.T. type deal? Those cars are actually pretty well thought out and can be really expensive endeavors because of the class limitations. Takes a lot of creativity to make it look stock and go fast.

That said, if this is your entry into this form of racing, why make it hard on yourself? Forget the 318 and put a stroked small block in it. 440+ cubes will get you towards your goal way easier than trying to wring every last bit of HP out of an unproven and basically anemic combo. You'd be looking at a LOT of custom work to make the 318 happen - pistons, wildly ported heads and intake, rollerized trans, big converter... and in the end you'd still be working on a 318 2bbl.

There are a few stroked small block Dusters in F.A.S.T knocking on 10s which is incredible by any stretch.
 
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