Login
Your Account
Contact Us
Shopping Cart (0)
HM on Facebook
Search:
HOME
PRODUCT CATEGORIES
Accessories
Cables
Cleaners & Waxes
Clothing & Gifts
Cooling Systems
Discount Dock
Electrical Systems
Engine Parts
Exhaust Systems
Fuel Systems
Gauges & Accessories
Hose & Fittings
Jet Drives & Accessories
LS Engine Parts & Accessories
Oil Systems
Oil, Lubricants & Paint
Outboards
Outdrives & Accessories
Propeller Accessories
Safety Equipment
Sale Specials
Steering Systems
Steering Wheels & Adapters
Superchargers
Throttles, Shifters & Controls
Trim Indicators & Accessories
Trim Tabs
V-Drive Components
SERVICE & HELP
Shipping Information
About Us
Return Policy
Contact Us
Privacy Policy
Security Policy
Terms & Conditions
Dealer Information
Your Account
Instructions & Guides
Mercruiser Parts Finder
Press Release Archive
Custom Fabrication
SPECIAL SECTIONS
Discount Dock
New Products
OEM Replacement Parts
Diversified Marine Catalog
GLM Marine Catalog
Mallory Marine Catalog
Mercury Marine Catalog
SEI Marine Catalog
U-FLEX Marine Catalog
1-877-900-7278
Categories
Accessories
Cables
Cleaners & Waxes
Clothing & Gifts
Cooling Systems
Electrical Systems
Engine Parts
Exhaust Systems
Fuel Systems
Gauges & Accessories
Hose & Fittings
Jet Drives & Accessories
LS Engine Parts and Accessories
Oil Systems
Oil, Lubricants & Paints
Outboards
Outdrives and Accessories
Propeller Accessories
Safety Equipment
Sale Specials
Steering Systems
Steering Wheels & Adapters
Superchargers
Throttles, Shifters & Controls
Tools & Accessories
Trim Indicators and Accessories
Trim Tabs
V-Drive Components
Departments
Discount Dock
Diversified Marine Catalog
GLM Marine
Mallory / Sierra Marine Catalog
Mayfair Marine
Mercury Marine Catalog
New Products
OEM Replacement Parts
Package Deals
SEI Marine Products Catalog
U-FLEX Marine Catalog
Manufacturers
AEM Performance Electronics
Aeromotive
American Turbine
API Marine
ARP Fasteners
Autometer
Barnegat Light
Berkeley Jet Drive
Bluewater Enterprises
Cometic Gaskets
Comp Cams
Corsa Performance
Custom Marine (CMI)
Dart
Delfino Steering Wheels
Edelbrock
Generic
Glenwood Marine
GLM
Grant Steering Wheels
Gussi Steering Wheels
Hardin Marine
Holley Marine
IMCO Marine
Isotta Steering Wheels
K&N Engineering
Lightning Headers
Livorsi Marine
Mallory / Sierra
Marine Design Corp
Marine Lighting Products
Max Volt Ignition
Mercury
Moon Eyes
MSD Ignition
Oliver Racing
Orca Marine Cooling Systems
Pertronix
Place Diverter
Plash Marine Lighting
Procharger
Rewarder Custom Headers
SEI Marine Products
Seloc
SkegShield
Stainless Marine
The Blower Shop
UFlex
Whipple
XRP Fittings
Zeiger Steering
Exhaust Systems
→
OEM Replacement Exhaust Systems
→
Mercruiser
→
Mercruiser 454 / 502, 7.4L, Big Block Chevy
→ Stock Mercury OEM Big Block Chevy 454/502 Cast Iron 4" Exhaust Manifold and Riser Kit - 807078T08
View Larger Image
Stock Mercury OEM Big Block Chevy 454/502 Cast Iron 4" Exhaust Manifold and Riser Kit - 807078T08
# 525-454
Ask a question about this part
E-mail this product to a friend
Mercruiser OEM V8 BBC 454/7.4L and 502/8.2L Exhaust Manifold and Riser Kit w/out Spacer
Qty
Description
OEM #
2
Exhaust Elbow
807988Q03
2
Exhaust Manifold Assy. (with drain plug)
807078T08
2
Gasket-Elbow
27-863724 (2 Slot, Restricted) or 27-863726 (4 Slot, Full Flow), or 27-863725-1 (Block Off, For Closed Cooling)
2
Gasket-Manifold
27-46820
Direct OEM Manufactured Replacement for Mercruiser Big Block Chevy 454/502 Manifolds and Risers
Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
Replaces Mercruiser #807078T08 and 89011A8 Manifolds
Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers
MSRP: $1,371.60
Your Price:
$1,179.99
You Save: 14% off MSRP!
Quantity
Gasket Type
27-863724 (2 Slot Restricted)
27-863726 (4 Slot Full Flow)
27-863725-1 (Block Off For Closed Cooling)
Add to Cart
Reviews On This Product:
(0.00)
stars out of 5
# of Ratings:
0
(Only registered customers can rate)
Related Products
20 Total Related Products
Extreme Duty Hi-Performance Exhaust Manifold Gaskets - 454/502 Chevy
# 300-1410
3" Cast Iron Riser Spacer Kit 93320A13
# 700-50310
Mercruiser Big Block Chevy, 7.4L, 454/502 Exhaust Manifold 807078T08
# 700-51240
4” Exhaust Elbow 807988Q03
# 700-51140
Hose Fitting with Drain Plug Kit 22-806926A1
# 700-13990
Screw 10-43749
# 700-22381
Mercury 3" and 4" Blocked Flow Riser/Elbow Gasket 27-860231
# 700-30220
Mercury 3 and 4" Riser Gasket - Restricted Flow 27-860233
# 700-30240
GM V8 BB Exhaust Manifold Mounting Kit
# 700-33765
6” Spacer Kit 93322A10
# 700-50620
4“ Riser w/o Spacer Exhaust Elbow Mounting Kit
# 700-53400
4“ Riser w/o Spacer Exhaust Elbow Mounting Kit (Fresh Water)
# 700-53401
4“ Riser w/ 3” Spacer Exhaust Elbow Mounting Kit
# 700-53430
4“ Riser w/ 3” Spacer Exhaust Elbow Mounting Kit (Fresh Water)
# 700-53431
4“ Riser w/ 6” Spacer Exhaust Elbow Mounting Kit
# 700-53460
4“ Riser w/ 6” Spacer Exhaust Elbow Mounting Kit (Fresh Water)
# 700-53461
SCREW @5 Mercruiser 10-37612
# 525-10-37612
TUBE-EXHAUST Mercruiser 32-14358001
# 530-14358001
TUBE-EXHAUST Mercruiser 32-44348001
# 530-44348001
3" Riser Kit 93320A13
# 530-93320A13