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Category : B- Small Block Dodge Magnum : Cylinder Heads

EDE 61775

SB MAG RPM 58CC HEAD WITH ROLLER SPRINGS

SINGLE 58CC ASSEMBLED MAGNUM RPM HEAD

$984.50

Single aluminum head assembed with springs suitable for a small hydraulic roller cam, locks, retainers & seals.

This stock out of the box head can support up to 480HP with a good engine combination.

This part number and price is for a single assembled head.

  • Designed for 1992 and later 5.2L (318ci) and 1993 and later 5.9L (360ci) Chrysler Magnum V8s
  • Substantial performance improvements for street/strip and off-road performance use
  • Easy bolt-on upgrade for these modern engines with substantial out-of-the-box performance gains
  • Stock Magnum intake and exhaust flange and port locations make this an ideal choice for use with stock equipment as well as the new RPM Air-Gap manifold, #5307
  • 176cc intake ports and 75cc exhaust ports with 58cc combustion chambers for a slight increase in compression over the factory heads
  • 2.02" intake and 1.60" exhaust valves with 11/32" stems offer more flow than stock and they accept adjustable, aftermarket rocker arms
  • Sold out of the box or with the legendary Hughes Porting options for ultimate performance
  • When using these heads with a flat tappet cam it will require that the pushrod tunnels be clearanced. We can do this for an additional charge of $40. If you need this done please make a note in the comment section when you place your order and we will contact you.

    Spring specs:  150# @ 1.800
                             420# @ .600" Lift
                             Coil Bind .650" lift

  • Cylinder Head Specifications:
  • Combustion chamber volume: 58cc
  • Intake runner volume: 176cc
  • Exhaust runner volume: 75cc
  • Intake valve diameter: 2.02"
  • Exhaust valve diameter: 1.60"
  • Valve stem diameter: 11/32"
  • Valve guides: Manganese bronze
  • Deck thickness: 5/8"
  • Valve spring diameter: 1.46"
  • Valve spring maximum lift: .580"
  • Rocker stud: 3/8"
  • Guideplate: Hardended steel
  • Pushrod diameter: 5/16"
  • Valve angle: 18°
  • Exhaust port location: Stock
  • Spark plug fitment: 14mm x 3/4 reach, gasket seat


Installation instructions for these heads can be found at this link. Installation Instructions
 

 

Related Parts:

FEL 1008 Fel Pro Racing Gasket .039" x 4.180" 

ARP 144-3605  Magnum Head Bolt Kit          

ARP 144-4203  Magnum Head 12pt. Stud Kit 

 

1560 Rocker Arm Kit 

1540 Jomar Rocker Arm Stud Girdle Kit 

Home | Phone: 309-745-9558 | Email: information@hughesengines.com