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The following starters and hardware can be used with the ZZ4 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
19302919
Permanent magnet gear reduction (PMGR) starter for 14" diameter flywheel/flexplate (10 lb.)
14037733
Bolt, starter mounting, inner for 12 3/4" PMGR starter
Oil Pan / Filter / Adapter / Dipstick:
The ZZ4 engine includes an oil pan part number 12557558. This is a four quart, right-hand dipstick oil pan and gasket.
The ZZ4 engine assembly includes an oil filter adapter and oil filter element (AC # PF 25). A premium oil filter (AC # UPF25)
is available for your ZZ4 engine. This has a 100% wire backed synthetic media with 6 micron filtration.
The oil dipstick for the ZZ4 engine is on the right-hand (passenger) side of the block. A dipstick for the lefthand (driver) side
of the block is available. Check for clearance when replacing the dipstick of an early-model block with a left-hand dipstick.
The recommended oil dipstick and oil dipstick tube are part number 12551144 and part number 12551154 respectively. This
oil dipstick tube bolts to the engine block below the deck surface, and can be used with header-type exhaust systems.
Carburetor / Air Cleaner:
A 750 cfm Holley four-barrel carburetor with either mechanical or vacuum operated secondaries and electric choke is
recommended for the ZZ4 engine. Chevrolet Performance Parts has a 770 cfm Holley four-barrel carburetor part number
19170093 with vacuum secondaries available.
A foam or paper element, low restriction air cleaner should be used to protect the engine from excessive wear and diffuse
the air entering the carburetor. The fuel mixture distribution can be upset if no diffuser is used, causing poor power and
misfiring at high engine speeds. Always check for adequate hood clearance when installing a new air cleaner. Chevrolet
Performance Parts offers a classic design 14" chrome air cleaner assembly 12342071 for single four barrel engines.
Fuel Pump:
The ZZ4 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 Chevrolet
Performance Parts part number 25115899. This heavy duty pump flows 72 gallons per hour at 6-8 psi outlet pressure.
Headers:
A ZZ4 engine can be equipped with a header exhaust system for maximum performance in applications where a
nonproduction exhaust system is legal. For street performance and limited competition applications, 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 Chevrolet Performance Parts to fit the ZZ4 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 Chevrolet
Performance Parts dealer or visit us on the web at www.chevroletperformance.com.
Spark Plugs / Spark Plug Wires:
The ZZ4 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 spark plug wire set part number 12361051 is available with 90 degree spark plug boots.
Rocker Covers:
The ZZ4 engine comes equipped with black stamped steel, center hold-down bolt rocker covers. A wide variety
of valve cover choices are available at your Chevrolet Performance Parts dealer or visit us on the web at
chevroletperformance.com.
ZZ4 Engine Long Block Specifications
TITLE
19172321
REV 09JA15
PART NO.
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