Page 67 - Repower Reference Guide (2020) 8M0149179

ACCESSORY KITS FOR PLUS-SERIES ENGINES

SHIM KIT - REAR MCM ENGINE MOUNT EXHAUST MANIFOLD AND ELBOW KITS

SHIM KIT EXHAUST MANIFOLD AND ELBOW CONVERSION KIT

8M0164159
12-892619A01 This kit contains all the parts necessary to convert a MCM small block V8 engine
This shim kit is required for newer transoms that no longer utilized a double‑wound with standard cooling and no risers with wet joint exhaust manifold & 4 in. O.D.
center rise 7‑degree exhaust elbows to dry joint exhaust manifolds and elbows.
spring washer and a fiber washer between the rear engine mounts and do not have Note: Engines with freshwater cooling &/or risers may require additional exhaust
enough downward adjustment with the front engine mount pads to achieve proper elbow gaskets to be ordered separately.
alignment in the boat. This situation may be encountered when installing an engine Fits the GM small block (305, 350 & 377 CID) engines with the wet joint or dry joint
for repower, complete engine replacement, or flywheel housing replacement. 4 in. O.D. center rise 7‑degree exhaust elbows.
Used with newer transoms that no longer utilized a double‑wound spring washer 1987‑2004 MCM sterndrive engines (s/n 0W309999 and below)
and a fiber washer between the rear engine mounts. 1987‑2001 MIE inboard engines (s/n 0M316999 and below)
EXHAUST MANIFOLD AND ELBOW CONVERSION KIT
MERCRUISER CRANKSHAFT SPACER
SPACER

8M0164160
This kit contains all the parts necessary to convert a MCM small block V6 engine
with standard cooling and no risers with the 2 pc wet joint exhaust manifold & 4 in.
23-8M0088395 O.D. center rise 7‑degree exhaust elbows to dry joint exhaust manifolds and
For use when servicing with a new harmonic balancer on Gen+ V6 & V8 engines elbows.
Note: Engines with freshwater cooling &/or risers may require additional exhaust
that are not equipped with a Crankshaft Position Sensor (CPS). New harmonic elbow gaskets to be ordered separately.
balancers p/n 863397 are all machined with a shorter snout to accommodate a
reluctor wheel used with a CPS. This spacer fits onto the crankshaft before the Fits the 1987‑2004 MCM V6 engines with the 2 pc wet joint or dry joint 4 in O.D.
installation of a new harmonic balancer to fill the region normally occupied by a center rise 7‑degree exhaust elbows (s/n 0W309999 and below)
reluctor wheel. This prevents disassembly of a non‑CPS engine to install a
reluctor wheel when servicing with a new harmonic balancer.
EXHAUST MANIFOLD AND ELBOW KIT
ENGINE HEADERS
MARINE EXHAUST HEADER ASSEMBLY - PORT

8M0164161
This kit contains all the parts necessary to replace the dry joint 14‑degree exhaust
on a MCM small block V8 engine with standard cooling and no risers.
Note: Engines with freshwater cooling &/or risers may require additional exhaust
elbow gaskets to be ordered separately.
Fits the following GM small block (305, 350 & 377 CID) engines with dry joint
879288019 14‑degree exhaust elbows.
Port‑Side Custom 316L Ceramic Coated Polished Marine Header Assembly. 2004 & newer MCM sterndrives (non‑EC) engines (s/n 0W310000 and above)
2002 & newer MIE inboards (non EC) engines (s/n 0M317000 and above)
Production item on 383 Stroker Scorpion Bravo applications shown in photo.
Fits MerCruiser 5.0L, 5.7L, 350, 6.2L, 377, and 383 small block applications.
MARINE EXHAUST HEADER ASSEMBLY - STARBOARD
879288020
Starboard‑Side Custom 316L Ceramic Coated Polished Marine Header Assembly.
Production item on 383 Stroker Scorpion Bravo applications shown in photo.
Fits MerCruiser 5.0L, 5.7L, 350, 6.2L, 377, and 383 small block applications.
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