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 GM SPECIFICATIONS.
ZZ454/440 Engine (12498777) Specifications
IR 04AP14
TITLE
PART NO.
19172103
DATE
AUTH
REVISION
SHEET OF
6 21
04AP14
Initial Release - Patrick Risse
N/A
Information may vary with application. All specifications listed are based on the latest production information available at the time of
printing.
Additional parts that may be needed:
Flywheel / Flexplate:
Like all big block V8 engines, the ZZ454/440 engine has 3.58" diameter flywheel flange bolt pattern. This engine comes equipped
with a 14" diameter flexplate with a 168 tooth ring gear, GM Part Number 10185034. If your application requires a flywheel, GM Part
Number 14096987, should be used. This flywheel is 14" diameter, 168 tooth ring gear, and is a for 11" diameter clutch. Use flywheel
bolt GM Part Number 12337973 (6 required).
Pilot Bearing:
You must install a pilot bearing in the rear of the crankshaft if the engine will be used with a manual transmission. The pilot bearing
aligns the transmission input shaft with the crankshaft centerline. A worn or misaligned pilot bearing can cause shifting problems and
rapid clutch wear. A roller pilot bearing, GM Part Number 14061685, is recommended for this engine. This heavy-duty bearing adds an
extra margin of reliability to a high performance drivetrain.
Oil Pan:
The ZZ454/440 engine includes oil pan, GM Part Number 10240721. This six-quart pan was originally designed for marine and truck
usage and may cause interference problems when installed in certain applications. Check for clearance before installation of the
engine. If the six-quart pan will not fit into your application, GM Part Number 12495360 is recommended as a substitute. This is a four-
quart, right-hand dipstick oil pan, which comes with the gasket, four main cap bolts, oil pump screen, dipstick and tube.
Headers:
A ZZ454/440 engine should be equipped with a header exhaust system for maximum performance in applications where a non-
production exhaust system is legal. For street performance and limited competition applications, the recommended header
configuration is 2" diameter primary pipes, 36 inches long, with 3 1/2" diameter collectors. Use 3" diameter tailpipes with a balance tube
(“H” pipe) and low restriction mufflers.
Rocker Covers:
The ZZ454/440 engine comes equipped with die cast rocker covers, GM Part Numbers 12553666 and 12553667. Additional tall and
short valve covers are available. Please see the website at www.chevroletperformanceparts.com or your local Chevrolet Performance
Parts dealer. When using either the cast aluminum or the tall, chrome rocker covers; ensure that enough clearance exists between the
cover and the brake booster.
