Page 933 - 2021 Sierra Catalog

915
SIERRA MANIFOLDS
ARE PAINTED, PACKAGED AND LEAK TESTED
18-1901
MANIFOLD
Replaces: 984054
Fits 181 CID model 140
and 3.0L (1973 - 1989)
Use with: Exhaust Manifold Gasket 18-1204-1 &
Elbow Gasket 18-2875-1
*For Exploded View - See PAGE 912
18-1898
MANIFOLD
Port & Starboard
Replaces: Barr CHVA-1-84, Marine Power 0991-110 Fits 454 cu.in. GM big block V8 engines
Use with:
Exhaust Manifold Gasket: 18-0418
*For Exploded View - See Pages 654-655
18-1997-1
EXHAUST MANIFOLD
Port & Starboard
Replaces Barr CHV-1-83 Universal Center Riser Manifold
FITS: GM 283, 305, 307 and 350 CID engines
Use with:
Exhaust Manifold Gasket Set: 18-0604
*For Exploded View - See Pages 656-657
18-1998-1
EXHAUST MANIFOLD
Port & Starboard
Replaces: Barr FM-1-83 Universal Center Riser Manifold
FITS: Ford 302 and 351 CID engines Use with:
Exhaust Manifold Gasket Set: 18-0603
*For Exploded View - See Pages 658-659
18-1986-1
MANIFOLD
Port & Starboard
Replaces: 3852374, 3857723 For: GM Small Block V8 305-350 ci Use with:
Exhaust Manifold Gasket: 18-2949 Mounting Kit: 18-8502
18-1902 MANIFOLD Replaces: 912441
V-8 - STARBOARD SIDE
Fits most GM V-8 small blocks with end riser Use with:
Mounting Kit: 18-8502
18-1903
MANIFOLD
Replaces: 912442 V-8 - PORT SIDE Fits most GM V-8 small blocks with end riser
Use with:
Mounting Kit: 18-8502
18-1904
MANIFOLD
Port & Starboard
Replaces: 980959, 980572 V-8 - EITHER SIDE Fits most Ford V-8 302 & 351W with end riser
Use with:
Exhaust Manifold Gasket: 18-0183-1 or 18-2896-1 (See Application Chart)
I/O — OMC STERNDRIVE/COBRA - Cooling System