4.9 Noonan Hemi

ACE ProCharged 4.9 Noonan Billet Hemi – The Next Level Race Engine

Our ACE 4.9 Noonan Billet Hemi engine is the ultimate combination for max-effort race cars competing in ProMod, Pro275, LDR, Radial vs. World (RvW), or No Time classes. Supercharged combinations feature an all newly design cylinder head specifically aimed at Procharger combinations in blower restricted class racing.

Can be Screw blown, Roots blown, Turbo or ProCharger!

Redefining the Billet Hemi Block

The Noonan 4.9 is the next evolution of the billet Hemi engine, completely redesigned with racers and low-maintenance performance in mind.

Key improvements include:

• Optimized valvetrain geometry 

• Stronger cylinder head stud pattern and size

• Raised cam design for durability

• Reinforced main cap design

Built for Serious Racers

The 4.9 Noonan block delivers:

• Maximum horsepower potential

• Easier trackside serviceability

Our ACE 4.9 Noonan Billet Hemi Engine includes, but not limited to the following machining/blueprinting:

• Balancing
• CNC Block Machining
• CNC Sunnen SV-30 vertical hone with diamond stones
• Cylinders double torque plate diamond honed for correct piston to wall clearance and surface finish

Short Block Components:

• Noonan 4.9" Bore Space Hemi billet block
• Clevite Main Bearings
• Clevite Rod Bearings
• 70mm Cam Bearings
• Winberg or Callies Billet Crankshaft
• Billet Aluminum Rods
• Custom ROSS Racing Pistons

Long Block Components:

• Custom Camshaft 70mm
• Jesel 1.062 Keyway lifters
• Noonan Promod Hemi 4.9 cylinder heads 
• Top Fuel Hoops
• ARP 5/8" Head Studs
• Copper Head Gaskets
• Titanium Intake valves
• Titanium Exhaust valves
• PSI Valve Springs
• Manton Push Rods
• Manton Billet Rocker Arms
• RCD Gear Drive
• ATI Damper
• RCD Timing Kit
• Oil Pump & Custom Oil Pan
• Noonan Billet Intake Manifold & Fuel Rails
• ARP Hardware
• Noonan/ACE Racing Engines Billet Valve Covers

We recommend FuelTech EFI engine management for this engine.