MAGNUM INDY "X" HEADS W/ 2.02" STAINLESS
MAGNUM STYLE INTAKE PATTERN W/ 2.02" INT, 1.620" EXH (NO SPRINGS)
This is a pair of INDY MA-X heads with one piece stainless, oversize ( 2.02" / 1.620") valves.
Features pressed-in hardened seats and bronze guide liners. All of our assembled INDY "X" heads now have bronze guide liners to prevent the common problem of valves sticking in the guides. BEWARE of purchasing these heads from anywhere that does not install the bronze guides!
A pair of new, small block cast iron INDY "MA-X heads (62cc chambers)
One piece stainless valves- 2.02” intake and 1.620” exhaust with 5/16” stems
Hughes Engines proprietary racing valve job
Blending of valves into the chamber to increase airflow
What’s NOT included: (all available at an extra charge. Call for details)
Milling the heads
Pressed in hardened exhaust seats to insure no cracks.
Multi-angle intake valve seats
Modern port design to enhance air flow.
179cc intake and 67cc exhaust runners
Highly efficient water jacket to prevent engine hot spots
Extra thick deck surface to enable angle milling for compression
What you need to know:
Adjustable rocker arms must be used with cams having greater than stock lift. We recommend our premium adjustable rocker arm assemblies along with matching pushrods.
If you need a combination not shown here please call one of our technicians at 309-745-9558
The flow chart below shows the gains on our flow bench when upgrading the
intake valve from the stock 1.92" size to the 2.02" size along with our racing
valve job. Numbers like this are probably worth 35-45 HP depending on the engines configuration.
||Intake 1.92" CFM
||Intake 2.02" CFM
This head is designed for use with the Magnum intake manifold, rocker arms, and valve covers. The MA-X head features a Magnum pedestal that is large enough to enable 7/16”-14 drilling and tapping for use with stud-mounted rocker arms and guide plates. A cast iron replacement, the 360 X Head series is designed for Magnum applications (318-360-415cid). With a host of additions and improvements over the factory originals, these heads are an easy way to get 400 to 550 horsepower out of your Mopar-powered street machine.
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