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HomeShopMarine Engine DomesticGeneral Motors 7.4L Marine Engine 1974-90
General Motors 7.4L Marine Engine 1974-90

General Motors 7.4L Marine Engine 1974-90

GM 7.4 / 454 Std rotation, HP Engine, OE head 781, HP cam lift. 489 int /.520 ex, Duration 224.

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GM 7.4 / 454 Std rotation, HP Engine, OE head 781, HP cam lift. 489 int /.520 ex, Duration 224.

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