Ford 300 4.9L Big 6 Aussiespeed 4 Barrel Manifold plus plenum filler AS0142-AS0084


SKU: AS0142-AS0084 Category:


Ford Aussiespeed  240. 300 or 4.9 L Ford inline 6 cylinder Aussiespeed 4 barrel manifold and plenum insert shifts the rpm range of the manifold by boosting velocity and jumping up bottom end torque even more.  The manifold has a fuel dropout tray cast into the plenum floor and with the plenum pig mounted centrally in the manifold it removes plenum volume for those look for more torque and pulling power. The carburetor flange allows for the SQUAREBORE Holley, Quick Fuel and EFI throttle bodies using the same flange bolt pattern as Squarebore Holley carbs, The dual drilled bolt pattern allows for carbs to be mounted both Forward or sideways facing.

Aussiespeed has used the technology, expertise and knowledge that has been acquired to develop intake manifolds for some of the worlds most popular hot rodded 6 cylinder engines in the all new Big 6 design.

4 barrel manifold

The centre fed 4 barrel design offers a longer runner than other manifolds and a cross sectional port area that will help it perform from just off idle to up in the rev range.

The manifold has a fuel dropout tray cast into the plenum floor as well as provisions for fuel injectors or nitrous oxide on the cylinder head flanges.

ford f150 4 barrel manifold

There is a 2 barrel version also available part number AS0524 for those wanting to run a 350 or 500 cfm 2V carburettor.

Length from head to carb pad at widest point 287mm, The vacuum  fitting in number 6 intake runner thread is 1/4 NPT

In Stock and ready to Ship



Additional information

Weight 7 kg