Magnum Aluminum Cylinder Head AssemblyPart Number P5153534** Higher air flow than production cylinder heads* 1.92-inch intake valves and 1.62-inch exhaust valves* Valvesprings support up to .525-inch lift* Chrome-moly retainers* .060-inch-thick valvespring seat/cupFits all '92 318 and 360 Magnum small-block applications and current Mopar R3 blocks. Uses production Magnum valve gear, except 31/48-inch studs or the Mopar Performance roller rocker arm set P5249800AB (1.6 ratio) or P5007404 (1.7 ratio).
Commando Standard Port Cylinder Head AssemblyPart Number P5153535** 2.02-inch intake valves and 1.60-inch exhaust valves* Valvesprings support up to .535-inch lift* Chrome-moly retainers* .100-inch-thick valvespring seat/cupFits all '67-'91 318, 340, and 360 LA small-block applications and current Mopar R3 blocks. Uses production shaft mounted valve gear (oil through the head) or Mopar Performance cast-iron ductile rocker arm package (P4529738) and on-center rocker shafts (P4510636). The Commando standard-port cylinder head also retains the production exhaust flange pattern and stock 340/360 LA intake manifolds.
Commando Large Port Cylinder Head AssemblyPart Number P5153536** 2.02-inch intake valves and 1.60-inch exhaust valves* Valvesprings support up to .535-inch lift* Chrome-moly retainers* .060-inch-thick valvespring seat/cupFits all '67-'91 318, 340, and 360 LA small-block applications and current Mopar R3 blocks. The large-port Commando cylinder head retains the stock LA-style intake and exhaust layout, while the unrestricted cross-sectional port area, combined with off-set-style W2 rockers, increases air flow dramatically. The large-port Commando cylinder head is the low-cost alternative to exotic race-style heads. Rocker shaft hold-down set P5249712 or P5249713, and a W2-style rocker arm set is required.
Fire One OffJust keep in mind, as good as these Mopar crate engines are, their installation simplicity is relative to making sure you have all the parts to make it work. If you're placing one of these engines in a car that previously did not have a V-8 or had a points-style ignition, a good electronic ignition should be on your list of required items. Mopar has made this electronic conversion available for quite some time and is required material for engines like these.
For more information, visit www.mopar.com or call the Mopar Direct Connection techline at 1-(888) 528-HEMI.*Not legal for sale on pollution-controlled vehicles or vehicles registered for highway use.