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The Poly
Mopar's Incredible, 318A. Spawned by the Hemi, neglected by the Aftermarket, mistakenly called "Wideblock" by many, but not forgotten by a few who have discovered the best kept engine secret in the Chrysler family of engines.
Click Here For 61-71 Era DTA Forum

Click Here To Buy DTA Poly Headers
Date(s): December 16, 2007. Album by MoparNorm. Photos by MoparNorm and Others. 1 - 90 of 90 Total. 8632 Visits.
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Start SlideshowTo order prints and photo-products: 1. Select photos. 2. Click Order. 3. Select products. 
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1
Poly ID numbers
Look in this location for your engine serial number and engine series.

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2
'64 Poly head
The distinctive "Scalloped" head design. This allowed the canted valves to be positioned in the same location as the Hemi head, but with only one row of rockers.

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Poly 318
Same engine as photo 1

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DTA Header Prototype #1
Installation test on a WDX Power Wagon

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Prototype 1
Simulating the PTO Shaft clearance

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Prototype 2

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Prototype  3

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Steering Box Clearance

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Frame and Steering Clearance

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Prototype Mock-up

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Passenger Side
Mockup

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Test Fit

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Oil Filter Clearance

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Poly #3 & # 7 changes
Fine Tuning the fit on a Town Wagon

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Poly #3 tube
Too close to the rubber engine mount.

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Poly Driver side
Laying out adjustments.

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Poly Pass side
Establishing down tube angle

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Rocky's TW
Checking prototype fit on a Town Wagon.

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Headers 8
Passenger side clearance.

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Headers 7
Down tube angle adjusted.

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Headers 3
Clearing PTO and starter

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Headers PTO
PTO and Starter Clearance

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Headers2
Mount clearance

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Headers 1
Axle Clearance W300

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Headers 9
Second Mock-up on W300

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Headers PTO 1
W300 Fit

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Poly 003
Mount Clearance W300

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Poly 005
Cross Member clearance W200

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Poly 004
W200 Clearance

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Poly 008
Mount and Starter Clearance

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Poly 006
Crossmember clearance

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Poly 007
Town Wagon Clearance, Second Prototype.

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Poly 009
Filter and Mount Clearance 2nd Prototype.

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Poly 010

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Poly 011

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Poly 012
Crossmember clearance 2nd Prototype

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Poly 013

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Poly 014
Poly 'Born On Date' location

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Finished Headers!
It was well worth the effort!

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DTA Headers
Ceramic Coated, "Grey", "Blast" and "Chromex"

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Poly Intakes

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Poly 318 Dual Quads

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John Groves
DTA Headers

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John Groves 1

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John Groves DTA

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Gary P Intake

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Gary P dyno
The Famous Mopar Muscle Mag Built-up

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sp1
Three barrel Stromberg intake and carb set-up for 318 Poly.

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sp2

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sp3

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sp4

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sp5

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NOS Poly
Canadian manufactured replacement block, 318A.

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Holley Poly Manifold

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Jill and Jon Pie wagon
Poly rebuild, for Town Wagon

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AVS off road

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318 dual poly

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Poly valve covers

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1956 Poly intake

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Gary P  poly covers
Norm,
Great truck website!  
You can tell your members that I will sell my valve covers to any of your list members for $350 plus shpg.


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Gary P Poly valve train

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EDELRBROCK P-600 ALUM INTAKE  STROMBERG 97 CARBS AND AIR CLEANERS

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Poly

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Poly 1

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Poly head Britt

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Poly heads Britt

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Stroker Poly
400+ HP? Jeffc says that this is going into the C500 in photo 7. More than likely, ...not a Caltrans dumptruck!

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Poly MoPar Perf Oil Pump

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Mitch 2

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Poly rockers  Gary P

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Gary P Poly heads

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Poly Alum intakes

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Poly dust cover

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Poly 2 barrel

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Poly 2 barrel adapter

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Poly Adapter

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poly tall timing cover

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poly tall timing cover 1

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poly tall timing cover 2

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Weiand dual quad

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Rob's  Poly

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Pat 1

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Bob S Poly

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Poly Rockers

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Poly Rocker 1

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Poly Rocker 2

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Poly Rocker 3

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Poly Rocker 4

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360 Poly - Barrett Lash 3
500 Plus HP!

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360 Poly - Barrett Lash

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