Mercruiser parts warehouse / stern drive drawings

Mercruiser exhaust manifold GM 427 454 482 V8 engine and parts
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Mercruiser exhaust manifold for use with 427 - 454 - 482 (1968 thru 1986) V8 GM large block marine engines 
  • Parts with tech drawings
  • Aftermarket parts for use with Mercruiser Models: 325 / 330 / 350 / 400 GM marine engines.
  • V8 GM big block has an extra 30% water cooling area this will help reduce temperature in port exit area for longer gasket life.
  • The tunes design will reduce turbulence and enhance flow for higher and maximum marine engine power.
  • Mercruiser manifold gaskets
GM marine engines 427, 454 and 482 CID V8 boats
51264 port 51266 starboard GM 427 454 482.jpg
# 51264 port and # 51266 starboard GM 427 454 482 years 1968-1986

Ref.
GLM #
 OEM number
 Manifold descriptions
  Add to cart
1a
51264
47735A17
Exhaust manifold (port)

Not available yet
  $254.96
1b
51266
47736A17
Exhaust manifold (starboard)

Not available yet
  $254.96
2
33760
27-46820
Gasket (2 units) - exhaust manifold

  $21.98
3
31490
27-48043-1
Gasket end cap
(5 units)

  $9.98
4
31480
27-48042
Gasket exhaust elbow
(2 units)

  $4.98
5
51010
60252A2
End cap

  $26.98
6
51030
73813A1
End cap

  $23.98
7
22449
10-35386
Screw (8 units)

  $9.98
8
51196
72963A9
Exhaust elbow

Not available yet
  $162.96
9
51194
76668A3
Exhaust elbow

Not available yet
  $179.96
10
22391
16-49545
Stud (4 units)

  $7.98
11
21248
11-49838
Flange serrated nut
(5 units)

  $4.98
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