Find Your Part:

Return to Parts List

Category : A- Small Block "LA" : Cylinder Heads, Iron : INDY "X" Heads : Stock Replacement Style

HUG 20301




This part number is for a single bare head.

This is a powerful cast iron replacement head for Small Block LA applications.

Photo below is a stock production valve job as delivered from factory.

 This LA-X head uses the standard "LA" intake manifold and  shaft style rocker system. It is drilled for the proper valve cover and gasket and contains both Chrysler LA and Magnum accessory holes on both ends of the head. This head is designed for use with 8mm intake (1.92” diameter) and exhaust valves (1.625” diameter).

 A cast iron replacement, the RHS™ Indy 360 X Head series is designed for both Small Block LA  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. Features of these impressive heads include 179cc intake and 67cc exhaust runners, a 62cc combustion chamber, multi-angle intake and hardened radiused exhaust valve seats, an improved valve guide design and a highly efficient water jacket to prevent engine hot spots. The 360 X Cylinder Heads also come with an extra thick deck surface to enable angle milling for compression.  

 Features & Benefits:
• Performance heads available for both Small Block Chrysler LA & Magnum engine applications
• 179cc intake/67cc exhaust runners & 62cc combustion chambers
• Hardened multi-angle intake (1.92” dia.) & radiused exhaust (1.625” dia.) valve seats
• Dual pattern exhaust bolts (standard & W2) & improved valve guide design
• Highly efficient water jacket with extra thick deck faces

To view the flow chart for this head click the button below.

NOTE: To use these heads on a magnum block, the block must have the L.A. shaft oil passages. These are located between the #1 and #3 cylinders and between the #2 & #4 cylinders.

Related Parts:

1110 Spring Kit Installed :  Includes Springs, Locks, Retainers, Seal  

1120 Spring Kit Installed 5/16" Vlv :  Springs, Seals, Locks And Retainers Inst    

7183 Bolts, Head Set Iron Magnum: ARP Brand Hex Head, Magnum 318 & 360 Eng 

7183S Bolts, Head Set Iron Magnum:Stock OEM Style Hex Hd, Mag 318 & 360 Eng  

ARP 144-3604 Bolts, Head Set Iron Magnum: ARP Brand Hex Head, Magnum 318 & 360 Eng  

7322 Stud Kit, 12 pt. Magnum: ARP Brand Alum & Iron Heads  

3106 Fel Pro 9898pt .054" X 4.172" Bore :  Felpro Standard Gasket   

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

HS9898PT2 Gasket, Head Set Magnum V8 : '98-'03 5.2 & 5.9 Magnums Fel Pro Kit

7324 Stud Kit, Hex Hd Magnum: ARP Brand Alum & Iron Heads 

HUG 15023     1.5:1 Rocker Arm Kit w/Shafts             

HUG 15063     1.6:1 Rocker Arm Kit w/Shafts               

7440               Small Block Rocker Hold Down Stud Kit          


Home | Phone: 309-745-9558 | Email: