Exhaust Manifold Kit for Mercruiser GM 7.4L-454, 8.2L-502 V8 4

• Part #: EMPBB4MER

$1,059.00

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Exhaust Manifold Kit for Mercruiser, Marine Power Big Block V8 454/502 CID Center Riser with 4 Inch exhaust. Used on most 454 7.4 Liter engines 1987 and later. 4 Inch means the exhaust hose size that fits the riser is 4 inch inside diameter.
This kit requires a 4" I.D. Exhaust hose to be connected to the riser.

This kit includes:

2 - EMP 57-57513 4" Risers

2 - EMP57-57511 Manifolds

Cross Reference	Component	Part Numbers
Mercruiser	Manifold:	807078A6, 89011A8
	Riser:	807988A2, 44354A3
Osco	Manifold:	9011
	Riser:	4354
Barr	Manifold:	MC-1-89011
	Riser:	MC-20-44354X
GLM	Manifold:	51240
	Riser:	51140
Sierra	Manifold:	18-1957-1
	Riser:	18-1976-1
Mallory	Manifold:	9-40506
	Riser:	9-40559
HGE	Manifold:	9011
	Riser:	4354