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Category : B- Small Block Dodge Magnum : Cylinder Heads
SB MAG RPM 58CC HEAD WITH ROLLER SPRINGS
SINGLE 58CC ASSEMBLED MAGNUM RPM HEAD
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
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
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