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GM Part 12498793 - ENGINE ASM, 572 DELUXE | 
 enlarge | Manufacturer: General Motors
Category: Automotive Parts And Accessories
Buy New: $18,900.00
Sales Rank: 196251
ASIN: B000QITVHY
Availability: Usually ships in 1-2 business days
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Product Description
Engine Assembly: Deluxe ZZ-572; 620 HP @ 5500 RPM; 650 Ft. Lbs. TQ @ 4500 RPM; 9.6:1 compression ratio: 4.560" bore; 4.375" stroke: bowtie tall deck block with one-piece rear seal; forged shotpeened 4340 steel crankshaft H-beam style connecting rods; forged aluminum pistons with full floating wrist pin; plasma-moly piston ring; hydraulic roller camshaft with .632 lift and 254 / 264 duration @ .050; hydraulic roller tappet lifters aluminum rectangular port cylinder heads with a 118cc combustion chamber; 2.25" stainless steel intake valves; 1.88 stainless steel exhaust valve; Dual spring 1.540 diameter valve springs; hardened chromemoly steel spring retainers; aluminum 1.7:1 ratio roller rocker arms; high performance 1-piece push rods; aluminum tsing;e plane all deck intake manifold; 850cfm mechanical secondary carburator; : screened and louvered windage tray; high RPM torsional damper; GM HEI distributor; 36 degrees total advance ignition timing; R42XLS spark plugs; 92 octane
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