Key Features:

• Port & Starboard

Additional Details:

• Material: Cast Iron
• Type: Universal center riser manifold
• Fits: Crusader GM 283 & 327 CID Engines thru 1964
• Fits: Crusader GM 305, 307, & 350 CID Engines 1965 and later
• Fits: Chris-Craft 283, 302, 307 & 350 CID Engines
• Fits: Mercruiser GM 283, 305, 307, 350 CID Engines
• Fits: OMC 283, 305, 307 & 350 CID engines 1968-1980
• Fits: Volvo 307 & 350 CID engines
• Fits: Pleasurecraft GM 283, 305, 307 & 350 CID Engines

Use With:

• 18-0604: Exhaust Manifold Gasket Set
• 18-2949: Exhaust Manifold Gasket
• 18-8536: Exhaust Elbow Mounting Kit
• 18-1907: Riser
• 18-1939: Riser
• 18-1949: Manifold Spacer
• 18-1999: Manifold Elbow
• 18-8112: Hose Fitting 90°
• 18-2902-1: Exhaust Manifold Gasket

Interchanges/Replaces

Barr

• CHV-1-83

GLM

• 56230

HGE

• 1-83

Mallory

• 9-40110

Osco

• 994

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2854-1	Barr 01-0107 GLM 36830 Mallory 9-65501 Osco 992-G	1	Exhaust Elbow Gasket		N/A
18-2949	Barr CHV-47-000 MC 47 27 33395 Crusader 96306 GLM 31100 Mercruiser Stern Drive 27-33395 27-33395B Osco CV-GH Volvo Penta 835966 856034	1	Exhaust Manifold Gasket		N/A

Key Features:

• For use with 3" I.D. exhaust hose

Additional Details:

• Material: Cast Iron
• For: Ford Small Block V8 302-351 cu. in.

Use With:

• 18-1997-1: Manifold
• 18-1998-1: Manifold
• 18-4364: Exhaust Elbow Mounting Package (Open)
• 18-8535: Exhaust Elbow Mounting Kit (Blocked)
• 18-8538: Exhaust Manifold Mounting Kit
• 18-0476-1: Riser Block Off Gasket
• 18-2854-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• 20-0100
• 20-0102

GLM

• 56120

Indmar

• 53-2009
• 53-2018

Mallory

• 9-40112

Osco

• 2018

Key Features:

• Ford Small Block V8 302-351 cu. in.
• GM Small Block V8 305-350 cu. in.
• GM Big Block V8 454 cu. in.

Additional Details:

• Material: Cast Iron
• Use: With 4" I.D. exhaust hose

Use With:

• 18-1898: Manifold
• 18-1997-1: Manifold
• 18-1998-1: Manifold
• 18-4364: Exhaust Elbow Mounting Package (Open)
• 18-8535: Exhaust Elbow Mounting Kit (Blocked)
• 18-0476-1: Riser Block Off Gasket
• 18-2854-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• 20-0100

GLM

• 56140

Mallory

• 9-40113

Marine Power

• 0992-593

Osco

• 99204

Key Features:

• Ford small block V8 302-351 cu.in.
• GM Big Block V8 454 cu.in.
• GM Small Block 305-350 cu.in

Additional Details:

• Size: 3"

Use With:

• 18-1898: Manifold
• 18-1997-1: Manifold
• 18-1998-1: Manifold
• 18-4258: Pipe Plug

Interchanges/Replaces

Barr

• CM 20-0097

GLM

• 56030

Mallory

• 9-40130

Osco

• 994-S3

Additional Details:

• Degree: 90
• Size:: 1" NPT x 1 1/2" hose barb
• For: Crusader GM Small Block V8 305-350 cu.in. (Models 220, 270, CM305, CM350XL, CM350HT)
• For: Crusader GM Big Block V8 454 cu.in (Models; 454XL 502XL, CH350)

Use With:

• 18-1898: Manifold
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-1982: Manifold
• 18-1997-1: Manifold
• 18-1998-1: Manifold

Interchanges/Replaces

Crusader

• 97296
• 97854

GLM

• 13950

Mallory

• 9-40418

Osco

• 7854

Additional Details:

• Fits: MCM/MIE GM V-8 (283, 305, 350 & 377 cid) engines

Use With:

• 18-1902: Manifold
• 18-1903: Manifold
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1931-1: Manifold
• 18-1951-1: Manifold
• 18-1986-1: Manifold
• 18-1997-1: Manifold
• 18-1950-1: Manifold
• 18-1953-2: Manifold
• 18-8502: Exhaust Manifold Mounting Kit

Interchanges/Replaces

Barr

• CHV-47-000
• MC 47 27 33395

Crusader

• 96306

GLM

• 31100

Mercruiser Stern Drive

• 27-33395
• 27-33395B

Osco

• CV-GH

Volvo Penta

• 835966
• 856034

Additional Details:

• For: Volvo 5.0L, GL, GXI, OSI, and 5.7L, GL, GI, GXI, GIL, GXIL, OSI, OSXI

Use With:

• 18-1997-1: Manifold
• 18-1986-1: Manifold
• 18-1902: Manifold
• 18-1903: Manifold

Interchanges/Replaces

Barr

• CHV470000
• OMC-47-909314

GLM

• 31101

OMC Inboard

• 909314

OMC Stern Drive

• 3852468
• 909314

Osco

• CV-GH

Volvo Penta

• 3852468

Additional Details:

• Fits: MCM/MIE GM V-8 (283, 305, 350 & 377 cid) engines

Use With:

• 18-1931-1: Manifold
• 18-1986-1: Manifold
• 18-1997-1: Manifold
• 18-1902: Manifold
• 18-1903: Manifold
• 18-1904: Manifold
• 18-1914: Manifold
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1950-1: Manifold
• 18-1951-1: Manifold
• 18-1953-2: Manifold

Interchanges/Replaces

Barr

• CHV-47-000
• MC 47 27 33395

Crusader

• 96306

GLM

• 31100

Mercruiser Stern Drive

• 27-33395
• 27-33395B

Osco

• CV-GH

Volvo Penta

• 835966
• 856034