Mercruiser Cylinder Head Assemblies

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	Cylinder Head Assembly 5.7L GM - Sierra* Sale Price: $547.34 Save: $176.66 (24% Off $724.00) Part # 18-4484 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4484 Replaces 5.7L V-8 GM 1969-86 w/Press in rocker arm studs w/ 12 intake manifold mounting bolts, perimeter mount valve cover
	Cylinder Head Assembly 5.7L, GM - Sierra* Sale Price: $478.83 Save: $150.17 (23% Off $629.00) Part # 18-4485 No Reviews \| Write Review Part # 18-4485 Replaces 5.7L V-8 GM 1987-95 w/Press in rocker arm studs w/ 12 intake manifold mounting bolts- (4 inside intake manifold bolts at 23 degrees), center mount valve covers
	Cylinder Head Assembly 5.7L, GM Vortec - Sierra* Sale Price: $497.13 (Out of stock) Save: $151.87 (23% Off $649.00) Part # 18-4486 No Reviews \| Write Review Part # 18-4486 Replaces 5.7L V-8 GM Vortec 1996 & up w/Press in rocker arm studs w/ 8 intake manifold mounting bolts, composite valve cover
	Cylinder Head Assembly 2.5L/3.0L, GM - Sierra* Sale Price: $583.14 (Out of stock) Save: $65.86 (10% Off $649.00) Part # 18-4489 No Reviews \| Write Review Part # 18-4489 Replaces 2.5L/3.0L I4 GM 1968-95 (non MerCruiser LX models) 1968-95
	Cylinder Head Assembly 4.3L, GM Vortec - Sierra* Sale Price: $459.41 Save: $144.59 (23% Off $604.00) Part # 18-4491 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4491 Replaces 4.3L VortecV-6 GM w/Screw in rocker arm studs(non-adjustable valve train), 8 intake manifold mounting bolts, center mount valve cover NOTE: not for use with engines using factory roller rocker arms
	5.0L Ford Marine Cylinder Head Assembly - Sierra* Sale Price: $599.64 Save: $179.36 (23% Off $779.00) Part # 18-4495 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4495 1986 & up 5.0L Ford w/D-shape 58 cc combustion chamber
	Cylinder Head Assembly 5.8L Ford - Sierra* Sale Price: $683.58 (Out of stock) Save: $215.42 (23% Off $899.00) Part # 18-4496 No Reviews \| Write Review Part # 18-4496 1986 & up 5.8L Ford w/D-shape 58 cc combustion chamber
	5.0L Vortec Cylinder Head - Sierra* Sale Price: $585.05 Save: $198.95 (25% Off $784.00) Part # 18-4501 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4501 Fits: 5.0L Vortec
	Aluminum Cylinder Head (Pair) - Sierra* Sale Price: $1432.37 Save: $526.63 (26% Off $1959.00) Part # 18-4502 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4502 Fits: 5.7, 6.2 GM Small Block V-8 Aluminum cylinder heads sold in pairs only. This utilizes a 185cc intake runner/ 62cc exhaust runner and 2.02/1.60 stainless valves placed in a 72cc combustion chamber.
	Cylinder Head 18-4503 - Sierra* Sale Price: $1360.02 (Out of stock) Save: $478.98 (26% Off $1839.00) Part # 18-4503 No Reviews \| Write Review Cast Iron cylinder heads sold in pairs only OE look Corrosion resistance heavy-duty cast iron castings suitable for saltwater usage
	Cylinder Head 18-4504 - Sierra* Sale Price: $2410.71 Save: $718.29 (22% Off $3129.00) Part # 18-4504 Hurry! Only 1 left in stock No Reviews \| Write Review Aluminum cylinder heads sold in pairs only or 454 & 502 cu.In big-block GM applications. Custom engraved with Sierra High-Performance logo 320 cc intake runner/119cc exhaust runner 2.25 intake/1.88 exhaust stainless steel valves 5 angle valve seat cut Up to 65HP increase over OE cylinder heads Suitable for use on Mark IV, Gen V, & Gen VI GM blocks. Must use correct corresponding head gaskets Std. BBC 7/16" rocker studs and 3/8" diameter pushrod guideplates Rectangle intake ports Use on factory non-adjustable valvetrain applications require adjustable rocker arm assemblies such as Sierra's 18-4507 Use Sierra 18-4506 guide plates to utilize factory 5/16" pushrods
	Head Bolt Kit 18-4508 - Sierra* Sale Price: $122.76 Save: $46.24 (27% Off $169.00) Part # 18-4508 Hurry! Only 1 left in stock No Reviews \| Write Review High performance head bolt kit-small block GM

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	Cylinder Head Assembly 5.7L GM - Sierra* Sale Price: $547.34 Save: $176.66 (24% Off $724.00) Part # 18-4484 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4484 Replaces 5.7L V-8 GM 1969-86 w/Press in rocker arm studs w/ 12 intake manifold mounting bolts, perimeter mount valve cover
	Cylinder Head Assembly 5.7L, GM - Sierra* Sale Price: $478.83 Save: $150.17 (23% Off $629.00) Part # 18-4485 No Reviews \| Write Review Part # 18-4485 Replaces 5.7L V-8 GM 1987-95 w/Press in rocker arm studs w/ 12 intake manifold mounting bolts- (4 inside intake manifold bolts at 23 degrees), center mount valve covers
	Cylinder Head Assembly 5.7L, GM Vortec - Sierra* Sale Price: $497.13 (Out of stock) Save: $151.87 (23% Off $649.00) Part # 18-4486 No Reviews \| Write Review Part # 18-4486 Replaces 5.7L V-8 GM Vortec 1996 & up w/Press in rocker arm studs w/ 8 intake manifold mounting bolts, composite valve cover
	Cylinder Head Assembly 2.5L/3.0L, GM - Sierra* Sale Price: $583.14 (Out of stock) Save: $65.86 (10% Off $649.00) Part # 18-4489 No Reviews \| Write Review Part # 18-4489 Replaces 2.5L/3.0L I4 GM 1968-95 (non MerCruiser LX models) 1968-95
	Cylinder Head Assembly 4.3L, GM Vortec - Sierra* Sale Price: $459.41 Save: $144.59 (23% Off $604.00) Part # 18-4491 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4491 Replaces 4.3L VortecV-6 GM w/Screw in rocker arm studs(non-adjustable valve train), 8 intake manifold mounting bolts, center mount valve cover NOTE: not for use with engines using factory roller rocker arms
	5.0L Ford Marine Cylinder Head Assembly - Sierra* Sale Price: $599.64 Save: $179.36 (23% Off $779.00) Part # 18-4495 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4495 1986 & up 5.0L Ford w/D-shape 58 cc combustion chamber
	Cylinder Head Assembly 5.8L Ford - Sierra* Sale Price: $683.58 (Out of stock) Save: $215.42 (23% Off $899.00) Part # 18-4496 No Reviews \| Write Review Part # 18-4496 1986 & up 5.8L Ford w/D-shape 58 cc combustion chamber
	5.0L Vortec Cylinder Head - Sierra* Sale Price: $585.05 Save: $198.95 (25% Off $784.00) Part # 18-4501 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4501 Fits: 5.0L Vortec
	Aluminum Cylinder Head (Pair) - Sierra* Sale Price: $1432.37 Save: $526.63 (26% Off $1959.00) Part # 18-4502 Hurry! Only 1 left in stock No Reviews \| Write Review Part # 18-4502 Fits: 5.7, 6.2 GM Small Block V-8 Aluminum cylinder heads sold in pairs only. This utilizes a 185cc intake runner/ 62cc exhaust runner and 2.02/1.60 stainless valves placed in a 72cc combustion chamber.
	Cylinder Head 18-4503 - Sierra* Sale Price: $1360.02 (Out of stock) Save: $478.98 (26% Off $1839.00) Part # 18-4503 No Reviews \| Write Review Cast Iron cylinder heads sold in pairs only OE look Corrosion resistance heavy-duty cast iron castings suitable for saltwater usage
	Cylinder Head 18-4504 - Sierra* Sale Price: $2410.71 Save: $718.29 (22% Off $3129.00) Part # 18-4504 Hurry! Only 1 left in stock No Reviews \| Write Review Aluminum cylinder heads sold in pairs only or 454 & 502 cu.In big-block GM applications. Custom engraved with Sierra High-Performance logo 320 cc intake runner/119cc exhaust runner 2.25 intake/1.88 exhaust stainless steel valves 5 angle valve seat cut Up to 65HP increase over OE cylinder heads Suitable for use on Mark IV, Gen V, & Gen VI GM blocks. Must use correct corresponding head gaskets Std. BBC 7/16" rocker studs and 3/8" diameter pushrod guideplates Rectangle intake ports Use on factory non-adjustable valvetrain applications require adjustable rocker arm assemblies such as Sierra's 18-4507 Use Sierra 18-4506 guide plates to utilize factory 5/16" pushrods
	Head Bolt Kit 18-4508 - Sierra* Sale Price: $122.76 Save: $46.24 (27% Off $169.00) Part # 18-4508 Hurry! Only 1 left in stock No Reviews \| Write Review High performance head bolt kit-small block GM

Mercruiser Cylinder Head Assemblies

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Mercruiser Cylinder Head Assemblies

Currently displaying for U.S.A & Canada

Currently there are no items in your shopping cart

Need Help? Have Questions? 1-800-743-1123

Need Help? Have Questions?
1-800-743-1123