Exhaust Manifold Kit Mercruiser GM Big Block 4 Inch Exhaust 1987 and Newer GLM58242

• Part #: GLMBB4MER

$539.95

• Please Choose: I have Fresh Water Cooling with Anti-Freeze in my Manifolds FWC No Yes I require the following spacers: (choose one) RISEXT 3" spacers 6" spacers no spacer required

  Replacement Available

• Additional fees for this product

  Eastern States Extra Shipping - Kits States this fee will apply to. AL, CT, DC, DE, FL, GA, IL, IN, KY, MA, MD, ME, MI, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV, ,	$109.00
  Western States Extra Shipping - Kits States this fee will apply to. AR, AZ, CA, CO, IA, ID, KS, LA, MN, MO, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY, HI, ,	$139.00

Exhaust Manifold Kit for Mercruiser, Marine Power Big Block V8 454/502 CID Center Riser with 4 Inch exhaust hose. Used on most 454 7.4 Liter engines 1987 and later.
This kit includes:

2 - GLM # 51140 4" Risers

2 - GLM # 51240 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

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