LA STYLE INDY "X" HEADS W/ 1.92"
LA STYLE INTAKE PATTERN W/ 1.92" INT, 1.620" EXH & 1110 SPRING
This is a PAIR of brand new head castings. They have been cleaned and then assembled with new valves (1.920" stock style chrome stem intakes and 1.620" one piece, non polished exhaust). The heads come complete with bronze guides and Viton valve stem seals and our 1110 spring kit. These are replacement heads and will accept all of the stock valvetrain and accessories. These RHS "X" heads feature pressed-in hardened seats and modern port design to enhance airflow.
SERVICE PARTS FOR 20301A:
This is a powerful cast iron replacement head for Small Block LA applications.
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.
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.
Spring upgrades available by calling our order desk at 309-745-9558
HUG 1110VSK 1110 Spring kit installed
HUG 1129VSK 1129 Spring kit installed
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
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
HUG 15023 1.5:1 Rocker Arm Kit w/Shafts
HUG 15063 1.6:1 Rocker Arm Kit w/Shafts
HUG 7440 Small Block Rocker Hold Down Stud Kit