Page 92 of GM Performance Parts 2006 Catalog by GM Parts Direct

WHATS HOT? Oval-port aluminum big-block head 500 lb.-ft. of big-block torque Forged steel crank CRATE ENGINES BIG-BLOCK 12498777 ZZ454/440 NOTE: Distributor with melonized steel gear MUST be used with engines with steel camshafts, or engine damage will occur. GMPP HEI distributor P/N 93440806 is recommended. 90 GM Performance Parts does not utilize any used or remanufactured parts in this crate engine. GM Performance Parts crate engines include a twelve-month, 12,000-mile warranty. W ZZ454/440 TECH SPECS: Part Number: 12498777 Engine type: Chevy big-block V-8 Displacement (cu in): 454 Bore x stroke (in): 4.25 x 4.00 Block (P/N 12561353): Cast iron with 4-bolt main caps Crankshaft (P/N 14096983): Forged steel Connecting rods (P/N 10198922): Forged steel Pistons (P/N 10215228): Forged aluminum Camshaft type (P/N 24502611): Hydraulic roller Camshaft lift (in): .510 intake .540 exhaust Camshaft duration (@.050 in): 211 intake 230 exhaust Cylinder heads (P/N 12363392): Aluminum round port; 110cc chambers Valve size (in): 2.25 intake 1.88 exhaust Compression ratio: 9.6:1 Rocker arms (P/N 12368082): Stamped steel Rocker arm ratio: 1.7:1 Water pump (P/N 12484890): Cast iron, long-style Flexplate (P/N 10185034): 14" Recommended fuel: 92 octane Ignition timing: 4 BTDC Maximum rpm: 5500 An aluminum-headed 440-horse monster in a box! If youre going to put a big-block in your project car, why not add some aluminum heads into the mix? GM Performance Parts took the venerable 454 HO, swapped the cast iron production heads for a set of our oval-port aluminum castings, and created the ZZ454. Not only do the aluminum cylinder heads flow more air, but you also drop almost 100 pounds off the nose of your car dramatically improving performance. The aluminum heads of the ZZ454/440 help make 15 horse improvement over the iron-headed 454 HO. These oval-port aluminum heads use huge 2.25" intake and 1.88" exhaust valves as well as small combustion chambers to add to the efficiency of the 454" big-block. The bottom end includes a Gen VI four-bolt block, a forged steel crank, forged connecting rods, and forged pistons. A roller camshaft with a .510/.540" lift specs delivers a big-block loping idle as well as add to the high performance punch of the entire crate engine. The ZZ454/440 is delivered as a complete assembly including water pump, balancer, intake manifold, and 14" automatic transmission flexplate. All you need to do is add your carburetor, ignition, and starter to complete the project. Of course, all of these parts are available through your GM Performance Parts dealer.

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