Chevrolet gasoline Big-block Generation VI engines DIY maintenance and service manuals

Engines

Chevrolet gasoline Big-block Generation VI Vortec 7400 L21 engine

It's an 454 in³ (7.44 L) internal combustion reciprocating V8 engine. It has bore/stroke ratio of 4.25 in × 4 in (10.8 cm × 10.16 cm), and uses 9:1 compression. This engine was rated 290 hp (216.25 kW) at 4200 rpm and 410 lbf⋅ft (555.89 N⋅m) of torque at 3200 rpm.
Chevrolet gasoline Big-block Generation VI Vortec 7400 L29 engine

It's an 454 in³ (7.44 L) internal combustion reciprocating V8 engine. It has bore/stroke ratio of 4.25 in × 4 in (10.8 cm × 10.16 cm), and uses 9:1 compression. This engine was rated 290 hp (216.25 kW) at 4200 rpm and 410 lbf⋅ft (555.89 N⋅m) of torque at 3200 rpm.

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