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Chevrolet - 454 CI (7.4L) PARTIAL ENGINE BLOCK | |
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GMPP 454ci Gen VI Chevrolet big-block partial engine. GMPP uses this partial engine in both the 454 HO and
the ZZ454/440 crate engines. Key - gmblock |
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WEB SITE NAVIGATION INFORMATION | |
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454 PERFORMANCE CRATE ENGINES NAVIGATION | |
| ZZ454/440 MAIN PAGE | ZZ454/440 PICTURES |
| 454 XTREME 4x4 Main Page | 454 XTREME 4x4 Dyno Results |
| 454 XTREME 4x4 Photos | HO 454 |
| RAM JET ZL1 454 (No longer Available, information only.) | 454ci (7.4L) Partial Engine |
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We have more GM and Chevrolet Performance Engines available. We have more GM Stock Replacement Long-block Goodwrench Engines available. We have more “Gen 3” and “Gen 4” Design Engines available. (LS1, LS2, LS6, LQ4, LS7) |
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454 PARTIAL ENGINE BLOCK | |
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454ci (7.4L) Partial Engine
P/N 12498778
If you desire to build your own big-block engine or rebuild your current 454 big-block engine, this partial
engine block is a great way to start. It includes the block, crankshaft, piston rods, pistons, oil pan, oil pump, front cover, balancer
and automatic transmission flexplate.The 454 partial engine does not include a camshaft, lifters, timing chain, cam sprocket, fuel pump, or any upper engine components. The 454 partial engine is used by GM for both the 454 HO and ZZ454/440 crate engines. |
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Service Parts (12498778 Parts List): The following are service items for the 502ci (8.2L) high output partial engine part number 12568782. 12550307 - Bare Block (Cast Iron, 4-bolt Mains) 10215228 - Forged Aluminum Piston ASM (Std.) 12523921 - Piston Rings (Std.) 14096983 - Crankshaft 1053 Forged Steel 10198922 - Connecting Rod (4340 Forged Steel) 10216339 - 8” Torsional Damper 10185034 - Flexplate Dual-bolt Pattern, For Automatic Transmissions 10240721 - Oil Pan 6 Qt. (Pick-up Truck Pan) 12555167 - Oil Pump and Screen 10230954 - Front Cover, Aluminum With Timing Indicator Service Parts (Parts For Rebuilding): 10244451 - Piston ASM (.030” O.S.) 12523923 - Piston Rings (.030” O.S.) 14097008 - Oil Pump (Less Screen) |
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