Sierra
Universal Ford V8 (5.0L, 5.7L) Inboard Exhaust Manifold Exploded View
Universal Inboard Exhaust Manifold Exploded View Diagram and Parts
Fits Ford 5.0L/5.7L
302/351 CID V8
Figure #DescriptionO.E.M. #Sierra #Application
1MANIFOLDBARR FM-1-83 18-1998-1Ford 302-351 (V8) CID Engines. Use with Manifold Gasket: 18-0183; Mounting Kit: 18-8538
2MANIFOLD GASKETPLEASURECRAFT RM0007 18-0183Use with Manifold: 18-1998-1. Included in 18-8538 mounting kit.
3HOSE FITTINGN/A18-82163/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)
4HOSE FITTINGN/A 18-44613/4" - 14NPT X 1" Hose (Corrosion Resistant Brass Fitting)
5HOSE FITTINGN/A18-82153/4" - 14NPT X 3/4" Hose (Corrosion Resistant Brass Fitting)
6MOUNTING KIT (OPEN GASKET)BARR 20-0082-P 18-4364Use with Risers: 18-1999, 18-1907, & 18-1939. Includes 18-2854 elbow gasket.
7MOUNTING KIT (BLOCKED GASKET)N/A 18-8535Use with Risers: 18-1939, 18-1999, 18-1907. Includes 18-0476 elbow gasket. (Use with a closed cooling system)
8EXHAUST MANIFOLD GASKET SETN/A 18-0603Ford 302-351 CID Engines; Use with Manifold: 18-1998-1
9MOUNTING KITN/A 18-8538Use with Manifold: 18-1998-1. Includes 18-0183 manifold gasket.
10HARDWARE KITBARR FM-1-83-P 18-4363Hardware Only for Manifold: 18-1998-1
11ELBOWBARR 20-0100, INDMAR 53-2009, INDMAR 53-2018 18-1907 or 18-1981Use with Manifold: 18-1998-1; Riser Gasket: 18-2854 (open) or 18-0476 (blocked); Mounting Kit: 18-4364 (open) or 18-8535 (blocked)
12ELBOWBARR 20-0100, MARINE POWER 0992-593 18-1939Use with Manifold: 18-1998-1; Riser Gasket: 18-2854 (open) or 18-0476 (blocked); Mounting Kit: 18-4364 (open) or 18-8535 (blocked)
13MOUNTING BOLTN/ANSSIncluded in 18-4364 & 18-8535 mounting kits.
14MANIFOLD ELBOWBARR 200-0082 18-1999Comes with 18-4364 (open) mounting package. If blocked mounting kit is required use 18-8535 mounting kit. Use with Manifold: 18-1998-1; Riser Gasket: 18-2854 (open) or 18-0476 (blocked)
15BLACKSTEEL PLUGN/A 18-4258Thread Size: 3/4". Use with Manifold Spacer: 18-1949
16MANIFOLD SPACERN/A 18-1949Use with Manifold: 18-1998-1
17ELBOW GASKET (OPEN)BARR 01-0107 18-2854Used with Risers: 18-1939, 18-1999, 18-1907. Included in 18-4364 mounting kit.
18ELBOW GASKET(BLOCKED)BARR 01-0105 18-0476Used with Risers: 18-1939, 18-1999, 18-1907. Included in 18-8535 mounting kit.
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1988 OMC cobra chev 350
by John from Bellevue, Washington on August 01, 2013
Used the gasket but... the exhaust hole is about 1/8 inch too large all the way around.. only covers about half of the exhaust flange all the way around...the four bolts that I received are too large and wont even fit in the holes in gasket.. the 3/4 inch pipe plug has no use at all since this is only for the fresh water cooling application...if you used this plug and this gasket you would burn up your exhaust.thanks john mcbride. if you can get the manufacture to correct this problem please advise and I will reorder the newer gaskets. or email me...
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Average Customer Review for Exhaust Manifold - 18-1998-1 - Sierra
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100
by John from Sturbridge, Massachusetts on November 11, 2015
These manifolds wear a direct fit on my 1987 ski centurion. I am so happy with the fast shipping and availability of Iboats thank you
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exhaust elbow from sierra exhaust manifold gasket set
by Jimmie from Hampden, Maine on July 14, 2014
Poor casting. The slots for the 2 bolts nearest the exhaust exit of the elbow were not cast big enough to get the box end of a wrench onto the bolt. Infact it was necessary to use the open end of the wrench at a very steep angle to get them tightened down. The seal took because the bolts at the back of the elbow were tightened last. This really needs to be addressed by the manufacture.
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Q:
Will this fit a GM 5.7 350 marine engine?
A:
We can only match it up by cross referencing the OEM numbers it works with. Those are: Barr # 20-0082 and Marine Power # 0992-000.


Q:
4.3 cobra omc?
A:
It will not fit an OMC Cobra.


Q:
I notice these manifolds only have one Bolt per port. Doesn't seem enough for a good seal. 5.8l Ford 1991?
A:
Well this particular manifold can be used for the port or starboard side and it comes with the mounting kit which contains four bolts. This fits: Ford 302 and 351 CID engines, Crusader 302 and 351 CID engines, Interceptor 221, 260, and 289 cid engines, Commander, Mercury, OMC, Palmer, Pleasurecraft & Waukesha.


Q:
What are the bolt hole dimensions?
A:
Sierra does not have bolt hole dimensions unfortunately. It is only cross referenced by OEM number. OEM number for this package is 20-0082-P.


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Your Price: $114.78
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Part # 18-1939 2nd Day Air for $2 More Eligible
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Replaces OEM part #
  • BARR 20-0100
  • MARINE POWER 0992-593 Barr
For: Barr, Indmar and Marine Power Ford Small Block V8 302-351cu. in. GM Small Block V8 305-350cu. in., GM Big Block V8 454cu in

Use with:
  • Manifold: 18-1997-1, 18-1998-1 or 18-1898
  • Riser Gasket: 18-2854 open or 18-0476 blocked
  • Mounting kit: 18-4364 blocked or 18-8535 open

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Open
Replaces OEM part #
  • BARR 20-0082-P
Use with:
  • Riser 18-1999, 18-1939, 18-1907
Includes 18-2854 elbow gasket
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Replaces OEM part #
  • BARR FM-1-83-P
Use with:
    Manifold 18-1998-1
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Part # 18-0476 2nd Day Air for $2 More Eligible
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Blocked
Replaces OEM part #
  • BARR 01-0105
Fits:
  • Barr, Indmar & Marine Power Ford Small Block V8 302-351 cu.in.

Used with:
  • Riser: 18-1939
  • Riser: 18-1907
  • Manifold: 18-1898
  • Elbow: 18-1999
Included in 18-8535 mounting kit

Sierra part # 18-0476 riser block gaskets

The gaskets are constructed of a proven hi-temperature composite that does not contain asbestos materials. This gasket material has been designed to handle the high temperatures capable of exceeding 500 degrees Fahrenheit as well as harsh marine environments.

Each Sierra riser block-off gasket ensures the factory matched footprint of exhaust ports. The Typical thickness for these products can range up to 1/16". Be certain to thoroughly clean and remove the entire old gasket. When joining two non-machined surfaces, an exact match is not always possible. It is recommended that you use a thin layer of high-temperature silicone sealer on both sides of gasket prior to installation to create a more perfect reliable seal.
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Part # 18-0183 2nd Day Air for $2 More Eligible
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Replaces OEM part #
  • PLEASURECRAFT RM0007
  • MERCURY MARINE 27-73866
  • OMC 916262
  • OMC 908717
  • OMC 907171
  • OMC 3853742
  • OMC 3852455
  • VOLVO 3853742
  • VOLVO 3852455
Use With:
    Manifold 18-1962, 18-1938, 18-1998-1, 18-1996, 18-1979, 18-1958
Included in 18-8509 Mounting kit
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Replaces OEM part #
  • MERCURY MARINE 22-807155
3/4" - 14 NPT X 1" Hose
Corrosion Resistant Brass Fitting
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Part # 18-0603 2nd Day Air for $2 More Eligible

For:

  • Ford 302/351 CID Engine

Use with:

    Manifold 18-1998-1
Applies for Indmar
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Part # 18-8535 2nd Day Air for $2 More Eligible
Blocked
Replaces OEM part #
  • BARR 20-0082
  • BARR 20-0100
For:
  • Barr, Indmar and Marine Power Ford Small Block V8 302-351 cu. in., GM Small Block V8 305-350 cu. in., GM Big Block V8 454 cu. in.

Use with:
    Risers: 18-1939, 18-1999, and 18-1907
    Includes 18-0476 elbow gasket. (Use with a closed cooling system)
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For: Barr, Indmar and Marine Power Ford Small Block V8 302-351cu.in., GM Small Block V8 305-350cu.in., GM Big Block V8 454cu.in.

Used with:
  • Manifold: 18-1998-1, 18-1997-1 and 18-1898
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Replaces OEM part #
  • BARR 20-0102
  • INDMAR 53-2018
  • INDMAR 53-2009
For: Barr, Indmar Ford Small Block V8 302-351cu. in
Use with:
    Manifold: 18-1997-1, 18-1998-1
    Riser Gasket: 18-2854 open or 18-0476 blocked
    Mounting Kit: 18-4364 open or 18-8535 blocked

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Part # 18-1998-1
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Port or Starboard
Universal Center Riser Manifold

Fits: Ford 302 and 351 CID engines
Crusader 302 and 351 CID engines
Interceptor 221, 260, and 289 cid engines
Commander, Mercury, OMC, Palmer, Pleasurecraft & Waukesha

Comes with: 18-4363 mounting package
Use with: Exhaust Manifold Gasket Set 18-0603

Replaces OEM part #
  • BARR FM-1-83
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Part # 18-1999 2nd Day Air for $2 More Eligible
Replaces OEM part #
  • BARR 200-0082
Use with:
  • Manifold: 18-1997-1 or 18-1998-1 or 18-1898
  • Riser Gasket: 18-2854 open, or 18-0476 blocked
  • Mounting Kit: 18-4364 open, or 18-8535
Comes with 18-4364 open Mounting Package
If blocked mounting kit is required, use 18-8535
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Pkg of 2
Replaces OEM part #
  • BARR 01-0107

Use with:
  • Risers: 18-1999, 18-1939, 18-1907
Included in 18-4364 mounting kit
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Thread Size 3/4"
Blacksteel Plug
18-9004 - Pipe Sealant with Teflon is recommended for use on plug threads
Use with Manifold Spacer: 18-1949

Replaces OEM part #
  • MERCURY MARINE 22-41622
  • MERCURY MARINE 22-33198A1
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Part # 18-8538 2nd Day Air for $2 More Eligible
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For:
  • Barr and Indmar Ford Small Block V8 302-351 cu. in.
Used with:
  • Manifold: 18-1998, 18-1904, 18-1998-1
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Spacer - 3"
Use 9-40171 or 9-40173 mounting kit
Risers 9-40100, 9-40112, and 9-40113 will require their own mounting kits
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Replaces OEM# 20-0100 and 0992-593 when used
Riser - 4" Outlet - 10° down angle - Use mounting kit 9-40171 or 9-40173
(Discontinued)
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Riser - 3" Outlet
30° down angle
Use mounting kit 9-40171 or 9-40173
OEM 20-0102, 53-2009, 53-2018
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Part # 9-40101
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Manifold - Fits both sides 221, 255, 260, 289, 302 and 351 CID V-8
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Mercruiser Spacer, 3" center riser.


Replaces:

  • Mercruiser # 93320

Engine Type:
GM V6 229 and 262 cu.in.GM Small Bolck V8 305-350 cu.in.GM Big Block V8 454 cu.in.


Engine Model:
185 and 205200, 228, 230, 260 and 898330, 340 and 7.4L


Fits T-20952/ T-20953/ T-20957 manifold. Sold each.

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Part # T-20940
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Chrysler Manifold


Replaces:

  • Chrysler 24695566
  • Chrysler 3675826

Engine Type:
Small Block V8 318-360 cu.in.


Engine Model:
All models 1966 and up with swivel/fixed exhaust

Your Price: $256.92 (Out of stock)
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Part # T-20950
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Manifold, port, Log style manifold


Replaces:

  • Mercruiser # 77234B

Engine Type:
GM Small Block V8 305-350 cu.in.


Engine Model:
198, 228 and 898

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Replaces:
  • Barr # 20-0082
  • Marine Power # 0992-000