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PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors.The engine is a 2005 496 Mag, serial # OWO60256. Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum. The initial timing will be affected by the cam, intake manifold, compression ratio, piston type, ignition type, head design, fuel you are running. A 496 would be a totally custom built engine, with a wild, and wide variety of possibilities. Answered by a verified Classic Car Mechanic. The exhaust note from this big block engine is much deeper than that of the typical stock GM big block engines. The 496/505 will accelerate any heavy car much better than any of the underpowered original GM bbc engines. Here are a few good reasons why we think the 496/505 engine is a better choice than the stock GM bbc engine.

There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s the LS5, the LS6, and the LS7 which. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Specs Part Number P4216-8HP Block for more videos on MerCruiser and boats tested with MerCruiser power. This engine requires at least a 3000 stall converter if using an automatic transmission. The 496 stroker HP high performance crate engine includes forged pistons, 4340 rods and HP aluminum heads so you don't have to give up quality to get a big block at an economical price. Engine Features 100% new Quicksilver: Heavy Duty Iron Block with Splayed 4‑bolt Main Bearing Caps, Priority Main Oiling System, 8.6:1 Hypereutectic Pistons, Roller Camshaft, 1.7:1 Rocker Arms, Forged Steel Crankshaft. 2003 Vortec HP3 8100 High Performance Crate Engine. New Member 90 Share Posted September 7, 2004. By jstwkd, Septemin Gen III and IV Small Block & Drivetrain. – Edelbrock heads (84cc) – CompCams XR274R-10 – Mechanical Solid Roller cam, 236/242 Duration, Lift. – Hawks Racing 4.15″ stroker crank, H-Beam rods, 10.5:1cr ROSS Racing pistons. 496″ Longram stroker engine build: – 440, +.030 oversize. The PCM 555 microprocessor is built right in, so you can take advantage of everything SmartCraft™ has to offer in the way of increased performance and convenience.496ci BigBlock Mopar Long Ram engine build. 496 MAG HO (425-hp) Brief Summary The new high-tech 496 MAG HO (high-output version) represents the next generation of powerful, smart, virtually maintenance-free engines. The firing order will be changed back to the classic 1-8-4-3-6-5-7-2.


This is a hydraulic roller cam, and should drop right into place of the stock one. It made 680 hp 5800 rpm and 652 lbft 4900 Would have probably gone over 700hp if we wanted to twist it a little higher. Kelly, I have all the specs for one I did about a year ago. Re: build sheet for 468 or 496 bbc that works.
