Additional Details:

• Size: 4" or 101.6mm
• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8523: Exhaust Elbow Mounting Kit
• 18-1918: Elbow
• 18-1928: Elbow w/ 4" Outlet
• 18-1934: Elbow w/ 3" Outlet
• 18-0305-1: Exhaust Elbow Gasket
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 97772

Crusader

• 97772

Mallory

• 9-40401

Osco

• 7772

Additional Details:

• Size: 8" or 203.2mm
• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8519: Exhaust Elbow Mounting Kit
• 18-1918: Elbow
• 18-1928: Elbow w/ 4" Outlet
• 18-1934: Elbow w/ 3" Outlet
• 18-0305-1: Exhaust Elbow Gasket
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 97169

Crusader

• 97169

Mallory

• 9-40410

Osco

• 7169

Key Features:

• 3" Outlet

Additional Details:

• For: Crusader GM Small Block V8 305-350cu.in. (Models 220 & 270)
• For: Crusader GM Big Block V8 454cu.in (Models CH350 and 454XL)

Use With:

• 18-1916: Riser
• 18-1925: Manifold
• 18-1926: Manifold
• 18-1927: Riser
• 18-1929: Manifold
• 18-1933: Manifold
• 18-8515: Exhaust Manifold Mounting Kit
• 18-0309-1: Exhaust Elbow Gasket

Interchanges/Replaces

Barr

• CR 20 98068

Crusader

• 98068

Mallory

• 9-40417

Osco

• 8068

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:

• For: Crusader GM Big Block V8 454 cu. in.

Use With:

• 18-1929: Manifold
• 18-1933: Manifold

Interchanges/Replaces

Mallory

• 9-40473

Osco

• 799-MK

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0418	Barr CHVA470000 MC47-27-46820 Crusader 96653 GLM 33760 Mallory 9-61400 Mercruiser Stern Drive 27-46820 OMC Inboard 909613 OMC Stern Drive 3852472 909613 Osco CW-GH Volvo Penta 3852472	1	Exhaust Manifold Mounting Gasket		N/A

Additional Details:

• Fits: MCM/MIE GM V-8 (454, 482, 496, 502 & 540 cid) engines
• Fits: Volvo 7.4L, GL, GI, GSI, and 8.2L, GL, GI, GSI

Use With:

• 18-1898: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-1982: Manifold
• 18-1957-2: Manifold

Interchanges/Replaces

Barr

• CHVA470000
• MC47-27-46820

Crusader

• 96653

GLM

• 33760

Mallory

• 9-61400

Mercruiser Stern Drive

• 27-46820

OMC Inboard

• 909613

OMC Stern Drive

• 3852472
• 909613

Osco

• CW-GH

Volvo Penta

• 3852472

Use With:

• 18-1925: Manifold
• 18-1926: Manifold
• 18-1929: Manifold
• 18-1933: Manifold
• 18-1916: Riser
• 18-1917: Block Off Manifold Plate
• 18-1927: Riser

Interchanges/Replaces

Barr

• CR 47 C 96108

Crusader

• 96108

Mallory

• 9-65400

Osco

• 6108