318 Poly Speed Goodies?

http://www.moparmusclemagazine.com/...ive_a_318_poly_engine_more_power/viewall.html

These guys managed to make over 400 HP with a poly 318.... you can bore these things .090 over!!!!

 

A stock 318 Poly will walk all over a stock LA 318. They're a great engine... a little heavy for their size and weight but still very nice running engines.

 

The Weiands are a little cheaper than $1,000. Even the ones posted on ebay above in the $400-500 range seem a little high. I found one on my local CL for $120, sold it on ebay for $350 (plus $150 shipping to Aus). Paid $1200 for a complete P600 tripower with all newly rebuilt carbs, linkage and air cleaners.

 

have driven most poly/LA's in my Mopars for years - currently have a 318/2 poly in the wagon and the old boat sure goes down the road pretty swift....

my D300 truck gets around pretty good with a 318 and my oldest poly - a 277/2 (an in plant) in my Fury just won't give up....

 

I bored mine .090 over!!!! +
(= 8 X 0.7854 X 4inch² X 4 = 402 ci.)

4inch stroker kit from Campbell Industries:
K1 Technologies 4340 forged crank - (4 Inch stroke)
K1 Technologies 4340 Billet H beam rods with ARP2000 bolts
Ross custom pistons, ring & wrist pins (8.0:1 compression)
Clevite H series main bearings
Clevite H series rod bearings
Mains - ARP2000 bolts

Cam & lifters from CamCraft
.050 duration 232/232
Lift 1.5 rocker .498/.498
Lift 1.6 rockers .528/.528
lobe separation 112

Heads stock - Will probably get bigger valves, port job by Bobby's,
1.6:1 blueprinted rocker arms

6-71 Detroit Blower (reversed & set up for gas)
Homemade Potvin style drive.
Megasquirt EFI (i'll try to hide it real good)

U-Fab-It "two runner" intake.
Exhaust...U-Fab-it flange +...?

Can't wait to fire it up!...still got lotsa stuff to do!
T

 

Dude, if you don't post pictures of that setup, I will swim over there and pound on you with a coconut! Awesome!

 

...check out Chrysler Power magazine...

.

 

Anyone knows where I can get oversized SS valves, springs, caps & locks for the "318 "Poly?

Mahalo
Tommy

 

Sure is.... I just got in line for one........

http://chryslerpower.com/webstore/Poly-SS-Manifold

 

53 COE, thanks for your support!
Just so folks don't get confused by the photo, the new manifold will have a valley cover and t-stat housing as well as bosses for injection/NOX.

.

 

It sure confused the hell out of me for a few minutes, until it hit me what was going on!

~Jason

 

Go fast parts are out there, but we are sure proud of them. You can find good deals here and there. I have a bone stock 318 Poly with the 2 barrel and it hauls my Fury around just fine. I would like to get the 4 barrel intake for it, but until the prices go down, I will keep the stock intake on it. I have an adapter to put a 4 barrel on it, but it ran like crap.

 

Now would be the time for anyone left holding a Weiand 4 barrel to sell it for a ridiculous number, and then go buy the improved 4 barrel version.

 

One sold on ebay about 2 weeks ago for $1025...

.

 

This one is still reasonable?? at $455 with three days left.

http://www.ebay.com/itm/251362275767?

 

The time is now to get on the boat - All aboard!

http://chryslerpower.com/webstore/Poly-SS-Manifold

 

Well, to be fair the $1025 manifold was allegedly brand new without the box. It looked like it. But for christsakes that's still way out there in my book. I got a deal, but about 5 years ago I bought a Weiand dual quad manifold locally for $200 and chopped it up into a blower manifold.

http://www.ebay.com/itm/Rare-Weiand...3TWIhdkifJ25fU7GbsF5g%3D&orig_cvip=true&rt=nc



A nice tripower setup sold for $1500 a bit ago, but then again I believe that number is more realistic considering it had carbs and was essentially ready to run.

http://www.ebay.com/itm/TRIPOWER-FO...3TWIhdkifJ25fU7GbsF5g%3D&orig_cvip=true&rt=nc

 

That one I thought was fair. I bought the exact same setup from the exact same seller about 2 years ago for $1250

Have not run it yet though.

 

You guys are the one I need for my poll. Stand up and be counted! http://www.jalopyjournal.com/forum/showthread.php?t=793278

 

I've had five of them over the years. They had great driveability with good performance and excellent gas mileage. All were automatics with a 3:23 rear gear. The last one, a 65 Dodge Coronet 500 convt. , I tore apart and added a reground cam, four barrel, electronic ingnition and milled heads and I think it provided the same performance as say a 300 HP chevy small block. It really needed headers to attain more performance.

 

Just discovered these Poly 318 valve covers:

http://www.pentastarparts.com.au/store/index.php?l=product_detail&p=4806

 

Those have been around for a while. In Australia though, don't know if anyone in the states has gotten them lately.

 

That's a hell of alot better than some of the "deals" out there on Epay. thanks.

 

I am working with a race engine builder on a 394 stroker poly. We spent some serious time (and money) porting the head till we felt we came up with good flow #'s without getting too aggressive. Then the ports were digitized and programed into the CNC machine and heads ported from that program. With the CNC porting all ports come out the same. We needed to sleeve the pushrods which came out very nice. We hit 1 water jacket but it was a intake port so it was patched up. We ran 3 different head flows. 11/32 and 5/16 valves on the hand ports then digitized these ports.CNC then done for these final #'s, 5/16 with some additional valve work. Here are the flow #'s all 28" with 1.94"' intake and 1.625 exhaust.

11/32 int/exh
.10 75/63
.20 158/105
.30 218/130
.40 241/171
.50 250/192
.55 256/198
.60 260/201
.65 264/205

5/16 int/exh
.10 79/67
.20 162/109
.30 222/134
.40 245/175
.50 254/196
.55 260/202
.60 264/205
.65 268/209

5/16 with valve work int/exh
.10 72/67
.20 141/104
.30 211/133
.40 248/175
.50 263/198
.60 266/211
.70 271/217

Over the next month we will start to work up pricing and package for those interested. Feel free to ask any questions.

Scott

 

The Weiand 7503 went for over $700 bucks.
http://www.ebay.com/itm/318-Poly-We...fJ1oj1ErBztLjpJ2VOwWc%3D&orig_cvip=true&rt=nc

It looks like maybe it is a dual plane manifold, but each "plane" is one bank of cylinders. Like a cross ram with very short runners.
I'll have to look thru my old Almquist catalog to see if that was a popular style, since I did not notice it before.

The fellow that sold it is on the yahoo barracuda group.
He paid what he thought was a lot for it several years ago, and when it brought over 700 bucks recently he said "Wow, I didn't see that coming."

It looks like maybe it is a dual plane manifold, but each "plane" is one bank of cylinders. Like a cross ram with very short runners.
Can't believe the cylinder-to-cylinder distribution is very good.

 

I know there is a little to much Aluminum on this engine for this Forum but this is a Customer's engine. I fabbed up the valve covers to clear the custom rocker shaft/rockers and modified pedestals. It is a stroked/bored poly and has very high numbers. It was a long time in the making and the engine is looking for a new shell to go in to.

 

http://chryslerpower.com/webstore/Exhaust/Manifolds/Poly-SS-Manifold



Posted using the Full Custom H.A.M.B. App!

 

Here is the pricing for the CNC ported poly heads. Also some pics of the crossover fill.​

​

617-926-0608​

[email protected]​

Using Clients Poly Heads​

Price $2,800.00​

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CNC Stage 1 for one pair Bare​

Hard exhaust seats​

Performance Valve job​

Machine, Install new 5/16" Bronze guides​

Hone Valve Guides to spec's​

Flat Mill Heads up to .010"​

Open / Cut Spring Pockets​

Open Pushrods holes and install bronze sleeves​

Crossovers filled with 2000 dg F material​

Pressure checked heads after work is done​

​

Any unforseen issues are at an extra charge.​

​

Flow Numbers 28" OF WATER​

.100" .200" .300" .400" .500" .550" .600" .650"​

Intake 1.94" ​

​

​

​

​

79 162 222 245 254 260 264 268​

Exhaust 1.625" ​

​

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​

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67 109 134 175 196 202 205 209​

Customers heads that have not been crack tested are subject to a release of all demands signed document before any work can be done.​

These heads with proper assembly & a good intake manifold flow with a calculated componet configuration can produce over 500 HP

 

Description of 1959 Mopar features, including 4 barrel poly and air assisted suspension and roof mounted rear AC here -

http://www.imperialclub.com/~imperialclub/Repair/Lit/Master/130/index.htm

 

as stated above, the poly yahoo group and chrysler power are currently building a affordable 4 bbl intake for the 318 poly,,,