Aussiespeed has a big line up when it comes to the slant six Chrysler engine. The long runner Hurricane intake manifold was one of the first slant 6 manifolds that Aussiespeed produced and the range has grown from that.
With long runner and short runner intakes, tubular exhaust headers, aluminum valve covers and air cleaners the list of slant six products has extended to gaskets, exhaust tabs and other dress up and accessories that fit the mighty leaning tower of power. Aussiespeed are always looking at new products to increase the performance of your engine. Unlike many companies we do not only look at products that will sell thousands on release but make a product for the selected market who want performance & quality above all else. We dont have huge advertising budgets & rely on customer satisfaction to spread the word of our extensive range of slant 6 performance products. Australian High Performance Industries or “Aussiespeed” as our brand is know is still run by its founder and not accountants who just look at profits above quality or performance gains.
Aussiespeed now manufacture the Dutra Duals in Australia, in 2018 after the Hotrod magazine story about a Slant 6 build the deal was done and new ownership of the tooling took place. The cast iron headers can be ordered from our online store that is located on the menu on the right hand side of the page.
Aussiespeed produce one of the largest range of performance intake manifolds for Slant 6 engines. Aussiespeeds range of tubular exhaust headers are made using the latest cnc bending machines and assembled in multi point welding fixtures to give repeatability and consistency. Aussiespeed Slant 6 headers are fully welded, ground then stress relieved in a purpose designed machine so the pipes will keep there shape after they have been heat cycled on your engine.
Slant 6 running an Aussiespeed AS0024 four barrel manifold. Thanks for posting your video Jordan.
175 RWHP from Jordans 225 powered VE Valiant.
Aussiespeed performance products fitted with Torqstorm supercharger kit.
As you can see by the picture the reverse engineering of these pipes was a huge job, First of we had to make a fixture to support the pipes in there original form & shape.
After getting the header plates made for the jig to allow us to get the exact port location you can see the repairs to the original primary pipes & flanges were but welded & have cracked & been welded may times before.
Once the front pipe fixture was built we then went about building the fixture for the rear bunch of pipes. To get repetition & accuracy you need to make sure that each section of pipe is held with 100% accuracy. There has been around 80 to 100 hours put into getting the front section & then the rear section reversed engineered.Each individual pipe has had to have a program written as to where the pipe is bent & formed plus the pipe length had to also be calculated.
When it came to any changes being made the fixture had to be changed first, then if the pipe was longer or shorter the cutting list was changed then the bending program. A tool designed to make the collector was also made to be able to form the collector to fit tight over the pipes.
keeping the pipes running in the right direction & having the pipes the correct length to get them to work across a wide rpm range was also a challenge. We wanted to get the Early A body Aussiespeed long tube headers to fit the Aussiespeed AS0023, AS0024, AS0225 Aussiespeed Blower manifold, The AS0199 2 & 4 barrel manifold & the latest addition the AS0299 short runner dual bolt pattern intake along with the factory stock cast intake, the long runner hyper pack & the other brands of performance after market brand manifolds that are available.
We needed to keep room around the starter motor area when fitting the AussieSpeed headers, no use building headers that cook the windings in your starter motor.
The underside of the headers to the runners of the AussieSpeed AS0299 short runner manifold is still good.If you look close you will see the header to manifold tabs we also now make that are cut from steel & have a closer radius shoulder to accommodate the wide intake runner of the Aussiespeed Manifolds.
Pictures from some of our customers cars and projects from around the world
Dave from the USA has been a great ambassador for the Aussiespeed Slant 6 range of performance products doing his own track testing program & giving us details of the progress on the strip times & increased MPH his engines are making
The All New AS0299 Short runner Slant 6 Performance Manifold
The new AussieSpeed AS0299 short runner slant 6 manifold offers a forward & side mount carb pattern for squarebore carbs
The new Slant 6 AussieSpeed manifold has lots of features including bosses for injection & vacuum brake booster fitting
The new AS0299 Slant 6 4 barrel intake manifold offers 2 carburettor mounting positions, the traditional primary fuel bowls to the front & sideways mount as pictured above. The AS0299 has a revised plenum with stippled floor & additional plenum flange height to clear throttle linkages
AS0199 AUSSIESPEED INTERCHANGEABLE TOP SLANT SIX MANIFOLD
The AS0199 was a manifold that gives you the option of 3 different carb tops that interchange on the 1 manifold
The 2 barrel to allows for fitment of Holley 350 & 500 2 barrel carbs
This top allows for any 4 barrel squarebore carb from 390 vac right up to large double pumpers or high flow throttle bodies or 4 barrel LPG or Propane Gas mixers to be fitted in the normal front to back mounting configuration
This top allows for any 4 barrel squarebore carb from 390 vac right up to large double pumpers or high flow throttle bodies or 4 barrel LPG or Propane Gas mixers to be mounted in the east west or sideways position
The AS0214 2 barrel carb plate
The AS0212 carb plate is for mounting the carb in its standard front to back position
AS0214 mounts the carb sideways
THE DESIGN & RESEARCH OF MAKING THE AUSSIESPEED HURRICANE
We get requests from customers regarding horsepower & torque increases when fitting the Aussiespeed hurricane manifold & headers. dyno figures & flow figures are something that can give you an idea of where you are going performance wise. Aussiespeed got some feedback & data from a customer in Canada regarding the 225 they are running in there street strip Valiant Dodge Swinger.
The car ran 9.2 with another brand after market manifold . The AS0024 AussieSpeed hurricane intake manifold and a 500 carter 4 barrel carb were fitted & the times dropped to 9.0. Both the set ups were ran using the same set of headers. the large bore AussieSpeed AS0198 headers were fitted & the car dropped again to 8.80. these tests were done over the 1/8th mile
AS0023 AussieSpeed Slant 6 chrysler 2 barrel performance manifold
Slant 6 Powered FED Slingshot Dragster being built by Evolution Motorsport In NSW Australia
Pics from a customer in the USA with this early Dodge pick up.
The Aussiespeed intake fits up with the headers and has even been fitted with air conditioning.
The engine pictured is a later model Slant 6 engine that does not have the same bolt pattern as the early engine. In the later part of 2016 Aussiespeed will be adding a valve cover for the later model Slant Six engine.
If you want to run an electric water pump on your slant six Aussiespeed offer a solution with this water pump replacement. The plate is pre drilled to accept the standard Davies Craig water pump adapter neck. These are also available from our online speed shop by clicking the link below.
Fitting your intake manifold and headers can be a tedious job. The Aussiespeed AS0190S batwings are a steel cut re profiled version of the factory Chrysler Slant 6 tabs that allow for larger runners. these can also be purchased from our online store.
Evil Stick Cam Profiles For Slant 6 Engines.
Part number AS0465-1, 210/218 .432″.432″ 112 L/C – RPM range 1600 – 4600 Increases mid range power, good idle quality, this duel pattern will suit NA and makes very good torque with the Hurricane long runner 2 barrel manifold. The cam also works well with up to 6psi of boost in with our supercharger kits, needs valve spring upgrade, suit manual or auto.
Part number AS0465-2, 218/226 .430″.430″112 L/C – RPM range 2000 – 5000 Performance street cam, dual pattern will suit modified engine with long or short runner 4 barrel or supercharged slant 6 up to around 8+ pounds of boost. Will need improved exhaust headers, will need valve spring upgrade, may need hi stall convertor if Auto.
Part number AS0465-3, 224/228 .480″.480″112 L/C – RPM range 2400 – 5800 Ideal for performance supercharged engine , can be used in non supercharged engines looking for a wide power band. application will need carbie, exhaust & valve spring upgrade, needs hi stall if Auto.
Part number AS0465-4, 224/228 .480″.480″108 L/C – RPM range 2600 – 5800 Ideal for NA performance street, muscle car ideal ,needs head work for maximum power , need carbie exhaust & valve springs, needs hi stall if Auto
Part number AS0464-12
premium radius ground solid lifters to suit our Slant 6 camshafts
Part number AS0564-12
Valve springs to suit Slant 6 cam grinds
Contact us regarding our slant 6 cams as we grind to order.
Our Aussiespeed Slant 6 dual Quad manifold is currently available to suit 2 x Holley Quick Fuel squarebore carbs, we do have plans to release a dual 2 barrel top half also
Fitted with AS0172P air filters and 2x 450 CFM Slayer Quick Fuel Carbs.
Slant 6 Aussiespeed Dual Quad manifold is supplied with a manifold brace that bolts to the engine mount.
Hotrod Magazine featured Aussiespeed manifold on a all aluminum Slant 6 built in the USA. The finned alloy red valve cover is another product from the Aussiespeed range.