Page 49 of 2009 Performance Parts by GM Parts Direct

crate engines big-block anniversary edition 427 crate engines big-block 19166392 the spirit of the zl1 commemorated in our limited-edition crate engine it s been 40 years since a few enterprising dealer-backed racers worked the loopholes of chevrolet s copo ordering system to create a handful of factory-built 427-powered supercars that weren t found in any brochure or order guide and while their intent was to dominate the popular super stock drag racing classes they touched off what would become one of the colorful chapters in the muscle car anthology the special cars two corvettes and 69 camaros were equipped with an all-aluminum 427 engine dubbed the zl1 that was largely similar in specification to the vaunted l88 427 but with an aluminum block that saved about 100 pounds off the cars nose-heavy front-ends the engine was officially rated at 430 horsepower but the true output was closer to 500 horses gm performance parts commemorates the zl1 with the anniversary edition 427 an aluminum-block crate engine that mimics the original in spirit but with design upgrades that make it a street-friendly option for copo camaro tribute projects pro-touring street machines and ultimate-performance shark corvettes our modern aluminum cylinder block has strength-enhancing design features screw-in galley plugs and more we ve also elected to use a hydraulic roller camshaft making for smoother street operation and greatly reduced maintenance a 10.1:1 compression ratio allows the anniversary edition 427 to drink from today s gas pumps too an owner s kit included with each engine comes with a serialized number that matches the block and valve cover numbers updated aluminum block silver powder-coated valve covers authenticating owner s kit 430 hp 444 lb-ft torque installation notes · due to crate fitment the carburetor is shipped in a separate box and needs to be installed by an engine installer · requires addition of starter and fuel pump not included · clutch linkage bosses are drilled and tapped when using cast-iron exhaust manifolds lower head bolts may need to be replaced with bolts with shorter heads for clearance · comes with an internally balanced 14 automatic transmission flexplate use flywheel p/n 12582964 and 11.5 clutch assembly for manual transmission applications · designed for pre-1976 street vehicles or any off-road vehicle · not intended for marine applications anniversary 427 dyno chart possible applications the perfect zl1 camaro clone a 69 corvette like only two others make your hot rod one of only 427 with this crate engine put it on an engine stand and just enjoy applications have not been validated they are merely suggestions of how you might enjoy your gm performance parts crate engine some applications may affect engine warranty see page 352 for specific warranty information some applications may not be emission-legal check state and local ordinances anniversary edition 427 tech specs part number engine type displacement cu in bore x stroke in block p/n 88958696 crankshaft p/n 19171620 connecting rods p/n 19211226 pistons p/n 19171618 camshaft type p/n 12366543 valve lift in camshaft duration 050 in cylinder heads p/n 19211799 valve size in 19166392 aluminum chevy big-block v-8 427 4.25 x 3.75 cast-aluminum with 4-bolt main caps forged steel forged steel forged aluminum hydraulic roller 224° intake 234° exhaust .527 intake .544 exhaust aluminum oval port 110cc chambers 2.19 intake 1.88 exhaust compression ratio rocker arms p/n 12361323 rocker arm ratio distributor p/n 19212081 carburetor p/n 19170093 water pump p/n 19168602 spark plugs and wires flexplate p/n 12561217 recommended fuel ignition timing maximum recommended rpm balanced 10.1:1 aluminum roller style 1.7:1 hei type 770-cfm aluminum short-style included 14 92 octane base 10° btdc 36° total 6400 internal note distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts or engine damage will occur available for purchase online at gmperformanceparts.com gm performance parts crate engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty gm performance parts does not utilize any used or remanufactured parts in this crate engine for a complete list of parts to complement and finish this engine turn to page 114 buy online at www.gmperformanceparts.com 95 94 buy online at www.gmperformanceparts.com

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