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PERFORMANCE
GM
PARTS
The following starters and hardware can be used with the 350HO engine:
10496870
Heavy-duty, remanufactured starter for 12 3/4" diameter flywheel/flexplate
1876552
Heavy-duty starter for 14" diameter flywheel/flexplate
14097278
Bolt, starter mounting, long, for heavy-duty starter
14097279
Bolt, starter mounting, short, for heavy-duty starter
10455709
Remanufactured permanent magnet gear reduction (PMGR) starter for 12 3/4" diameter flywheel/
flexplate (10 lb.)
12606096
Permanent magnet gear reduction (PMGR) starter for 14" diameter flywheel/flexplate (10 lb.)
14037733
Bolt, starter mounting, inner for 12 3/4" PMGR starter
12338064
Bolt, starter mounting, outer for 12 3/4" PMGR starter; also for 14" PMGR starter (2 required)
Fuel Pump:
The 350HO Deluxe engine does not include a fuel pump. However, it does have a mechanical fuel pump boss
with a block off plate installed. The fuel system must be capable of supplying adequate fuel volume at a
minimum of 6 psi pressure when the engine is operating at wide open throttle (WOT). A high volume in-line
electric fuel pump is available from GM Performance Parts Part number 25115899. This heavy duty pump flows
72 gallons per hour at 6-8 psi outlet pressure.
Headers:
A 350HO Deluxe engine can be equipped with a header exhaust system for maximum performance in applica-
tions where a nonproduction exhaust system is legal. For street performance and limited competition applica-
tions, the recommended header configuration is 1 3/4" diameter primary pipes, 32 to 36 inches long, with 3"
diameter collectors. Use 2 1/2" diameter tailpipes with a balance tube ("H" pipe) and low restriction mufflers.
Accessory Drive Brackets:
Two Accessory Drive Kits are available from GM Performance Parts to fit the 350HO engine. P/N 12497698 is used
for vehicles with air conditioning and P/N 12497697 is used for vehicles without air conditioning. Please see your
GM Performance Parts dealer or visit us on the web at www.gmperformanceparts.com.
Spark Plugs / Spark Plug Wires:
The 350HO Deluxe engine comes with spark plugs Part number 5614210 (AC # MR43LTS).
When installing the engine in a vehicle originally equipped with a small block V-8 with HEI ignition, standard
replacement spark plug wires can be used. High performance 8mm diameter wire sets with the Chevrolet Bow
Tie logo or with the GM Performance Parts logo are available from GM Performance Parts for custom installa-
tions. The GM Performance Parts logo wire sets are available as Part number 12361056 (135° spark plug
boots) and Part number 12361057 (90° spark plug boots). The Chevrolet logo wire sets are Part number
12361050 (135° spark plug boots) and 12361051 (90° spark plug boots). The 135° spark plug boot sets are
recommended for routing the spark plug wires over the valve covers, 90° spark plug boot sets are recom-
mended for routing the spark plug wires under the exhaust headers.
Rocker Covers:
The 350HO Deluxe engine comes equipped with chrome stamped steel, center hold-down bolt rocker covers. A
wide variety of valve cover choices are available at your GM Performance Parts dealer or visit us on the web at
www.gmperformanceparts.com. Pre-1987 flange mount rocker covers can be installed on the 350HO Deluxe
engine using adapter Part number 24502540. This adapter is machined from billet aluminum, and uses an O-
ring seal between the adapter and cylinder head rocker cover rail.
350HO Deluxe Engine Specifications
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GMSPO SPECIFICATIONS.
REV16JL08
PART NO.
DATE
REVISION
GENERAL MOTORS
SERVICE PARTS OPERATIONS
6200 Grand Pointe Drive, Grand Blanc, MI 48439
12487544
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