for a new generation of performance enthusiasts. This engine-built with all new components-is a complete engine assembly from the throttle body to the oil pan, and cranks out 525 horsepower in it most potent form.
Three different versions of the new 392 are available from Mopar:
P5153604 392 HEMI Crate Engine – Carbureted, 540 horsepower and 490 lb.-ft of torque
P5253605 392 HEMI Crate Engine – SEFI, 525 horsepower and 510 lb.-ft. of torque
P5153603 392 HEMI Long Block HEMI Crate Engine
Technical specifications include:
- Deep-skirted cast iron block with cross-bolted mains
- CNC-ported aluminum twin-plug cylinder heads
- Stainless steel 2.100" intake and 1.600" exhaust valves
- Ovate wire (beehive competition) valve springs
- Viton competition valve stem seals
- 279°/285° hydraulic roller camshaft with 0.584" intake and 0.552" exhaust lift
- Forged pistons (4.055" bore)
- 10.5:1 compression ratio
- Aluminum single plane high rise intake manifold with holley 870 cfm 4-bbl carburetor for carbureted 392 applications (1)
- 4140 forged steel crankshaft - 3.795" stroke
- 4130 forged- steel I-beam performance connecting rods - 6.200" length
- SFI-approved competition crankshaft damper
- "Plug-and-Play" wiring harnesses (2)
- 80 mm manual throttle body on fuel-injected engines (3)
- Premium tri-metal performance engine bearings
- Precision balanced rotating assembly
- Distributorless coil-on-plug (COP) ignition system
History of the 392 Hemi
The original 392 HEMI engine was introduced in the new 1957 model year Chryslers and Imperials. It replaced the 354 cubic-inch version of the original HEMI launched in 1951.
Compared with the 354, the 392 was completely revised and improved, with larger valves and ports, a beefier block and crankshaft, and improved bearings. In short, the 392 HEMI, often referred to simply as the "92," was perfect for drag racing.
More than a few racers bolted on six or eight carburetors, slipped in a hotter cam, tipped some nitro into the tank and went racing. Racing legend Don Garlits ran a 392 in his Swamp Rat I at record speeds of over 180 mph on nitro with no supercharger. Garlits also used a 392 HEMI to officially break the 200-mph barrier when his Swamp Rat went 201.34 mph at Atco, N.J. in 1964.