Our NHRA Factory Stock Showdown and NMCA Factory Super Car championship engine, the 354 Supercharged HEMI® Drag Pak engine features numerous upgrades. Featuring a 3.0-liter Whipple twin-screw supercharger, new exclusive GEN3 aluminum HEMI engine block, all-new H-beam connection rods, custom aluminum pistons, forged steel 8-counterweight crankshaft and new high performance light weight billet supercharger bel tensioner. This engine combination is NHRA-rated at 630 hp and approved for NHRA FSS class. Note, NHRA mandates engine factored horsepower rating for vehicles that compete within specific NHRA sanctioned class(es) to achieve parity within each race class and does not represent actual engine output capability.FEATURES:• Displacement 354 cu. in.• Newly designed GEN III aluminum HEMI engine block includes select 6-bolt main metal caps for added strength and precision CNC Torque plate honed cylinders • New ultra billet Timken 4330V steel 8-counterweight crankshaft• All new high-performance forged H-beam connecting rods • Race designed forged aluminum pistons• 3.0 Whipple twin-screw supercharger• New High Performance, light weight billet belt tensioner• Mopar spec camshaft with 0.675" lift• Billet timing gears front drive and SFI-approved ATI Performance Super Damper• Jesel solid roller lifters • Jesel rocker arms: 1.80:1 In, 1.85:1 Ex ratio • PAC dual valve springs • Billet aluminum 109 mm throttle body & 3.500†pulley• American Racing headers – 304 stainless with merge collectors• Moroso billet aluminum oil pan with fabricated aluminum sump• Installed sensors: Cam & crank position, oil pressure & temperature, intake T-MAP (temperature & pressure)• Uses Shell Rotella T6 5W-40 (8 qt) & Mopar® oil filter (P/N: 05038041AA)• Recommended fuel: VP C16Requires the following kits for plug-and-play installation:• ECU Kit (P/N: P5160240AA)-Sold Separately• Drag Pak Electrical & Fuel Kit (P/N: P5160239AC)-Sold Separately