OMC 4-CYLINDER 153 C.I.D. 120 H.P. 2.5L

Model 120 Engine 
LOG STYLE DIRECT REPLACEMENT

Part Number and Description

OMC-1-981462 Direct replacement water cooled exhaust manifold.
Replaces OMC part #’s 979729 and 980459.

OMC-1-982657 Direct replacement water cooled exhaust
manifold. Manifold has the heat source in the exhaust port for automatic choke. 

OMC-20-909536 Direct replacement high rise to adaptor elbow for use with OMC-20980536.

OMC-20-910380 Direct repalcement exhaust elbow. Replaces OMC riser part #’s 980188 and 910380.

OMC-20-980536 Direct replacement exhaust riser. Replaces OMC riser part #’s 979730 and 980536.

1-380446 Heat exchanger assembly.

1-907885 Direct replacement rear end cap. Replaces OMC part # 907885. 

1-910280 Direct replacement front end cap. Replaces OMC part # 910280 and 311550 (choke). 

1-910384 Direct replacement front end cap. Replaces OMC part # 910384.

OMC-1-98146/982 Manifold mounting package.

OMC-20-907765 Direct replacement exhaust elbow to hose adaptor.

OMC-20-908014 Exhaust manifold to riser adaptor for use with OMC riser part #’s 980188 and 910380.

OMC-20-910380P Exhaust riser mounting package.

OMC47-311068 Exhaust manifold to cylinder head gasket.

OMC47-311121 Exhaust manifold to elbow and end cap gasket.

OMC47 907761 Manifold end cap gasket.

OMC47-907764 Exhaust elbow to hose adaptor gasket.

OMC47-908013 Adaptor plate (OMC-20-908014) to riser (OMC-20-910380) gasket.

Note:
Manifold includes all plugs, gaskets and mounting hardware to  
head. Risers include plugs, gasket and mounting hardware to mount to manifold.

OMC 4-CYLINDER 181 C.I.D. 140 H.P. 3.0L

Model 140 Engine
LOG STYLE DIRECT REPLACEMENT

Part Number and Description

OMC-1-984054 Direct replacement exhaust manifold. Replaces OMC part #’s 998083, 980460, 980957 and 982490.

OMC-20-910380 Direct repalcement exhaust elbow. Replaces OMC riser part #’s
980188 and 910380.

1-910384 Direct replacement front end cap. Replaces OMC part # 910384. 

OMC-1-984054P Exhaust manifold mounting package.

OMC-20-910380P Exhaust riser mounting package.

OMC47-311121 Exhaust manifold to elbow and end cap gasket.

OMC47-908013 Adaptor plate (OMC-20-908014) to riser (OMC-20-910380) gasket.

OMC47-908079 Exhaust manifold to cylinder head gasket.

Note:
Manifold includes all plugs, gaskets and mounting hardware to  
head. Risers include plugs, gasket and mounting hardware to mount to manifold.

OMC/VOLVO 4-CYLINDER 181 C.I.D. VORTEC ENGINE

Model 140 Vortec Engine
LOG STYLE DIRECT REPLACEMENT

Part Number and Description

OMC-1-3858870 Direct replacement exhaust manifold. Replaces OMC/Volvo part# 3858870, 986985, 3854045, 3857450, 3858871.

OMC-20-3862603 Direct replacement exhaust riser/elbow. Replaces OMC/Volvo part # 3862603, 3853673, 3857821, 3857198, 3863071, 3851227, 3850799, 3588684.

OMC-20-3853628 Exhaust riser restrictor plate. Replaces OMC/volvo part # 3853628.

OMC47-908013 Exhaust riser gasket. Two gaskets will be required when using the restrictor plate. 

OMC47-3852356 Exhaust manifold to head gasket.

OMC-20-3862603P Exhaust riser mounting package.

OMC-1-3858870P Exhaust manifold mounting package. 

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC V6-155 H.P. ALL YEARS

LOG STYLE GENERIC

Parts Number and Description

BV6-1-75L Water cooled end discharge port manifold to fit the Buick V6 engine (1/2” N.P.T. cooling connections). All years.

BV6-1-75R Water cooled end discharge starboard manifold to fit the Buick V6 engine (1/2” N.P.T. cooling connections). All years.

20-0031 Swivel-type 90 degree exhaust elbow connector with internal water discharge. Accepts 2 1/2” to 3” I.D. exhaust hose. Requires (1) mounting hardware kit #20-0002P per elbow.

OMC-1-0092 Front end plate with choke stove heat exchanger (starboard side only).

OMC-6-0000P Plumbing fittings package (3/4” I.D. hose only). 

OMC-29-0000 Upper thermostat housing. Replaces either OMC # 314810 or # 982201 (may also order under part #’s OMC29-314810 or OMC-29-982201).

OMC-29-383307 160 degree thermostat. 

OMC47-314809 Thermostat housing gasket

OMC V6-4.3L COBRA

All Models 
CENTER RISER DIRECT REPLACEMENT

Parts Number and Description

OMC-1-3857656 Direct replacement exhaust manifold. Replaces Volvo part # 3857656.
 
OMC-20-913784 Direct replacement exhaust riser/elbow. Replaces OMC # 913784 and Volvo part # 3863601 (New Style).
 
OMC-20-913784P Exhaust riser/elbow mounting package.

MC47-27-99757 Exhaust manifold to cylinder head gasket.

OMC47-913783 Direct replacement exhaust riser/elbow to manifold gasket.

50-512-017 Replacement 1/2" N.P.T. to 1" hose (straight)/brass hose fitting.

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC V8-283, 305, 307 and 350 C.I.D.

Models 210, 215, 225, 235 and 245 H.P. 
LOG STYLE GENERIC

Parts Number and Description

OF-1-60L Water cooled end discharge port manifold to fit the Small Block GM engine (1/2” N.P.T. cooling hose connections).

OF-1-60R Water cooled end discharge starboard manifold to fit the Small Block GM engine (1/2” N.P.T. cooling hose connections). 

20-0031 Swivel-type 90 degree exhaust elbow connector with internal water discharge. Accepts 2 1/2” to 3” I.D. exhaust hose. Requires (1) mounting hardware kit #20-0002P per elbow.

20-0055 Swivel-type 30 degree exhaust elbow connector; fully
jacketed. Accepts 2 1/2” or 3” I.D. exhaust hose. Requires (1) mounting hardware kit #20-0002P per elbow.

20-0002P Mounting hardware kit.

OF-1-60F-P Manifold to cylinder head mounting package.

OMC-6-0000P Plumbing fittings package (3/4” I.D. hose only).

OMC-29-0000 Upper thermostat housing. Replaces either OMC # 314810 or # 982201 (may also order under part #’s OMC29-314810 or OMC-29-982201).

OMC-29-383307 160 degree thermostat.

OMC47-314809 Thermostat housing gasket.

OMC47-909314 Exhaust manifold to cylinder head gasket.

OMC47-909515 Adaptor housing gasket.

OMC V8-283, 305, 307 and 350 C.I.D.

Models 225 and 245 H.P.
LOG STYLE DIRECT REPLACEMENT
 

Parts Number and Description

OMC-1-979760 Direct replacement exhaust manifold (port side). Replaces OMC part # 979760. 

OMC-1-979761 Direct replacement exhaust manifold (starboard side). Replaces OMC part #979761. 

OMC-20-981281 Direct replacement exhaust elbow. Replaces OMC part #’s 907776 and # 907777. 

1-31214P Exhaust manifold end cap/connector mounting package.

1-312148 Direct replacement exhaust manifold front end Cap/connector (port side).

1-312149 Direct replacement exhaust manifold front end Cap/connector(starboard side). End cap has extra hole drilled for choke stove.

1-380985 Choke stove heat exchanger (starboard side only). Uses 1-312149 end cap.

OMC-1-9797P End cap and exhaust elbow stud package.

OMC-1-97975P Exhaust manifold mounting package.

OMC-20-981281P Exhaust elbow mounting package.

OMC-29-383307 160 degree thermostat.

OMC-29-0000 Upper thermostat housing. Replaces either OMC # 314810 or # 982201 (may also order under part #’s OMC29-314810 or OMC-29-982201).

OMC47-311130 Direct replacement exhaust manifold end cap/connector gasket (not to be used between elbow and manifold).

OMC47-314809 Thermostat housing gasket.

OMC47-907775 Direct replacement exhaust elbow gasket.

OMC47-909314 Manifold to cylinder head gasket.

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC V8-283, 305, 307 and 350 C.I.D.

Models 185, 200, 225, 230 and 260 H.P. 
LOG STYLE DIRECT REPLACEMENT

Parts Number and Description

OMC-1-912441 Direct replacement exhaust manifold (starboard side). Replaces OMC part #’s 912441 and 909280.

OMC-1-912442 Direct replacement exhaust manifold (port side). Replaces OMC part #’s #’s 912442 and 910144.

OMC-20-982680 Direct replacement exhaust riser/ elbow. Replaces OMC part # 982680.

OMC-20-982680P Exhaust riser/elbow mounting package.

OMC-29-0000 Upper thermostat housing. Replaces either OMC # 314810 or # 982201 (may also order under part #’s OMC29-314810 or OMC-29-982201).

OMC-29-383307 160 degree thermostat.

OMC47-314809 Thermostat housing gasket.

OMC47-909314 Exhaust manifold to cylinder head gasket.

OMC47-909786 Direct replacement exhaust riser to manifold gasket.

Note:
Manifold includes all plugs, gaskets and mounting hardware to  
head. Risers include plugs, gasket and mounting hardware to mount to manifold.

OMC V8-283, 305, 307 and 350 C.I.D.

All Models 
CENTER RISER GENERIC

Parts Number and Description

CHV-1-83 Water cooled center discharge manifold to fit the small block GM engine (3/4” N.P.T. cooling hose connections). All years.

20-0082 Water cooled center discharge riser (3/4” N.P.T. cooling hose connection). Standard for use with 3” I.D. exhaust hose.

20-0100 Water cooled center discharge riser (3/4” N.P.T. cooling hose connection). Standard for use with 4” I.D. exhaust hose.

1-0104P Adaptor package for fresh water cooled manifold (includes gaskets and block off plate).

1-0105 Center riser manifold-to-riser gasket for fresh water cooling.

1-0106P Adaptor package for raw water cooling. Used in pre-heating applications (includes gaskets and block off plate with vent hole).

1-0107 Center riser manifold-to-riser gasket (raw water cooling). 

20-0082P Riser mounting package for both 20-0082 and 20-0100.

20-0082SS-P Stainless steel mounting package (with brass plugs) for both 20-0082 and 20-0100. Not pictured.

20-0084P Straight exhaust adaptor (includes adaptor, hose and clamps). For use with 3 1/2” I.D. exhaust hose.

20-0085P Straight exhaust adaptor (includes adaptor, hose and clamps). For
use with 2 1/2” I.D. exhaust hose.

20-0086P 90 degree exhaust elbow adaptor for I/O applications (includes adaptor, hose and clamps). For use with 2 1/2” I.D. exhaust hose.

20-0087P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3” I.D. exhaust hose.

20-0088P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 2 1/2” I.D. exhaust hose.

20-0089P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3” I.D. exhaust hose.

20-0092P 45 degree exhaust elbow adaptor (includes adaptor, hose
and clamps). For use with 3” I.D. exhaust hose.

20-0093P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3 1/2” or 4” I.D. exhaust hose.

20-0097 3” spacer block (complete with mounting hardware, gasket and 3/4” pipe plug). Capable of stacking.

CHV-1-83P Manifold mounting package (includes bolts and pipe plugs).

CHV-1-83SS-P Stainless steel manifold mounting package (includes stainless bolts and brass plugs). Not pictured.

CHV-47-0000 Manifold to cylinder head gasket.

MC-6-0001P Exhaust manifold plumbing fittings package for model 215.

OMC-20-0003 Hose bushing 3” to 3 1/2” (where applicable).

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC V8-5.0L and 5.7L COBRA

All Models
CENTER RISER DIRECT REPLACEMENT

Parts Number and Description

OMC-1-914035 Direct replacement exhaust manifold. Replaces OMC part # 914035 and Volvo part # 3857723 (New Style).

OMC-20-913784 Direct replacement exhaust riser/ elbow. Replaces OMC # 913784 and Volvo part # 3863061 (New Style).

OMC-1-914035P Exhaust manifold mounting package. 

OMC-20-913784P Exhaust riser/elbow mounting package.

OMC47-909314 Exhaust manifold to cylinder head gasket. 

OMC47-913783 Direct replacement exhaust riser/ elbow to manifold gasket.

50-512-017 Replacement 1/2” N.P.T. to 1” hose (straight)/brass hose fitting.

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to mount to manifold.

OMC (FORD) V8-302 and 351 C.I.D.

Models 170, 175, 190 and 235 H.P. 
LOG STYLE DIRECT REPLACEMENT

Parts Number and Description

OMC-1-980959 Direct replacement exhaust manifold. Replaces OMC part # 980572 and # 980959. 

OMC-20-980617 Direct replacement exhaust elbow. Replaces OMC part # 980617.

1-908719 Direct replacement exhaust manifold end cap/connector (front). Replaces OMC part # 908719.

OMC-1-980959P Manifold to cylinder head mounting package.

OMC-20-980617P Exhaust elbow mounting package.

OMC47-908717 Exhaust manifold to cylinder head gasket.

OMC47-908935 Direct replacement exhaust manifold end cap/connector gasket.

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC (FORD) V8-302 and 351 C.I.D.

All Models
CENTER RISER GENERIC

Parts Number and Description

FM-1-83 Water cooled center discharge manifold to fit the small block Ford engine (3/4” N.P.T. cooling hose connections). All years.

20-0082 Water cooled center discharge riser (3/4” N.P.T. cooling hose connection). Standard for use with 3” I.D. exhaust hose.

20-0100 Water cooled center discharge riser (3/4” N.P.T. cooling hose connection). Standard for use with 4” I.D. exhaust hose.

1-0104P Adaptor package for fresh water cooled manifold (includes gaskets and block off plate).

1-0105 Center riser manifold-to-riser gasket for fresh water cooling.

1-0106P Adaptor package for raw water cooling. Used in pre-heating applications (includes gaskets and block off plate with vent hole).

1-0107 Center riser manifold-to-riser gasket (raw water cooling). 

20-0082P Riser mounting package for both 20-0082 and 20-0100.

20-0082SS-P Stainless steel mounting package (with brass plugs) for both 20-0082 and 20-0100. Not pictured.

20-0087P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3” I.D. exhaust hose.

20-0088P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 2 1/2” I.D. exhaust hose.

20-0089P 30 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3” I.D. exhaust hose.

20-0092P 45 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3” I.D. exhaust hose.

20-0093P 90 degree exhaust elbow adaptor (includes adaptor, hose and clamps). For use with 3 1/2” or 4” I.D. exhaust hose.

20-0097 3” spacer block (complete with mounting hardware, gasket and 3/4” pipe plug). Capable of stacking.

FM-1-83P Manifold mounting package (includes bolts and pipe plugs).

FM-1-83SS-P Stainless steel manifold mounting package (includes stainless bolts and brass plugs). Not pictured.

FM47-0000 Manifold to cylinder head gasket.

OMC-6-0001P Exhaust manifold plumbing fittings package (1” I.D. hose only).

OMC-6-0000P Exhaust manifold plumbing fittings package (3/4” hose only).

OMC-20-0000P Hook up package; may be required for connection to stern drive units (exhaust hose and clamps not included).

OMC-20-0003 Hose bushing 3” to 3 1/2” (where applicable).

Note:
Manifold includes all plugs, gaskets and mounting hardware to
head. Risers include plugs, gasket and mounting hardware to
mount to manifold.

OMC (FORD) V8-5.0L and 5.8L COBRA

All Models Carbureted 
CENTER RISER DIRECT REPLACEMENT

Note:
Water fitting (prt # 50-512-017) included with manifold.

Parts Number and Description

OMC-1-3852347 Direct replacement exhaust manifold. Replacement Volvo part # 3852347. 
 
OMC-20-913784 Direct replacement exhaust riser/elbow. Replaces OMC # 913784 and Volvo part # 3863061.

OMC-20-913784P Exhaust riser/elbow mounting package.

FM-47-0000 Exhaust manifold to cylinder head gasket.

OMC47-913783 Direct replacement exhaust riser/elbow to manifold gasket.

50-512-017 Replacement 1/2" N.P.T. to 1" (straight)/brass hose fitting.

Note:
Manifold includes all plugs, gaskets and mounting hardware to  
head. Risers include plugs, gasket and mounting hardware to mount to manifold.