Posted on 2nd February 2017 at 10:34am
Have you ever wondered what the difference is between a
single and dual plane manifold?
Better yet which is the better option for your vehicle?
The Harrop single plane and dual plane manifolds are
designed and manufactured in Australia, leveraging 60 years of racing
experience to deliver the performance enthusiasts expect.
The Harrop Dual Plane manifold is the perfect performance
manifold for any vehicle fitted with a legendary Holden V8 engine and late
model efi heads with evenly spaced ports. The low overall height of the
manifold provides excellent bonnet clearance for carburettor/throttle body
assemblies and is the choice for those who do not want to modify their exterior
body work. The Dual Plane manifold exploits the benefits of longer intake
runners producing more low-end torque, while still flowing well at higher RPM
producing optimal performance gains between 1000 to 5500 rpm.
The Harrop Single Plane manifold has been developed
leveraging years of racing experience to deliver the enthusiast through to
professional with a quality performance product. The Harrop Single Plane
manifold is the perfect performance manifold for any vehicle utilising the Holden
V8 engine, suitable for all iterations from 253 through to 5.7 lt. that
utilises any late model efi, evenly spaced port head. The design of the plenum
and intake runners provides a direct and clear path to maximise air flow at higher
rpm, and while aimed at competition applications is also suitable for those who
simply want maximum performance from their street engines; it is designed for
an optimum operating range of 3500 to 7000 rpm.
Both Harrop manifolds are available in efi or carbureted versions,
they suit both square and split bore carburetors and are available with bolt
patterns for both Holley and Quadrajet.
If you would like to know more about Harrop Engineering’s
range of automotive performance products please contact our sales team directly
on 9474 0900 or [email protected].
Welcome to Harrop Engineering
Since 1955, Harrop has engineered and manufactured world-class systems and solutions for OEMs, Race Teams and the Aftermarket. #harrop
