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Additional parts that may be needed:
Flywheel / Flexplate:
Like all small block V-8 engines produced since 1986, the HT383E engine has a 3.00" diameter flywheel flange
bolt pattern. Small block V-8 engines produced from 1958 through 1985 had a 3.58" diameter flywheel flange
bolt pattern. This change in bolt circle diameter was made to accommodate a leak-resistant one-piece rear
main seal.
This HT383E engine includes a 12 ¾" diameter flexplate, part number 14088765. Use flywheel, part number
14088650, with manual transmissions. Also, if using a manual transmission, six bolts, part number 12337973,
will be 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, part number
14061685, is recommended for this engine. This heavy-duty bearing adds an extra margin of reliability to a high
performance drivetrain.
Starter:
This HT383E engine does not include a starter. The starter must be matched to the flywheel or flexplate
diameter when installing the HT383E engine. Small diameter flywheels are 12-3/4" in diameter and have a
starter ring gear with 153 teeth. Large diameter flywheels are 14" in diameter and have 168 teeth on the starter
ring gear. This difference in flywheel diameters requires two different starter housing. Starter noses used with
14" diameter flywheel have two offset bolt holes; starters used with 12-3/4" diameter flywheels have bolt holes
that are straight across from each other.
Note: Chevrolet starter motors use special shouldered mounting bolts which register the starter on the block.
The following starters and hardware can be used with the HT383 engine:
10496870
1876552
14097278
14097279
19302919
14037733
Rocker Covers:
This HT383E Engine comes equipped with black stamped steel, center hold-down bolt rocker covers.
Chevrolet Performance offers several valve cover options if you would like to dress up your engine. See the
catalog or visit
chevroletperformance.com
Rocker Cover Grommets:
The HT383E engine does not come with rocker cover grommets. It is recommended to use grommet part
number 3989350 with these rocker covers.
HT383E Re-Power Kit
TITLE
Heavy-duty, remanufactured starter for 12-3/4" diameter flywheel/flexplate
Heavy-duty starter for 14" diameter flywheel/flexplate
Bolt, starter mounting, long, for heavy-duty starter, 3/8"-16 x 4.65" long
Bolt, starter mounting, long, for heavy-duty starter, 3/8"-16 x 1.85" long
Permanent magnet gear reduction (PMGR) starter for 14" diameter flywheel/flexplate
(10 lb.)
Bolt, starter mounting, inner for 12-3/4" PMGR starter
for more information.
REV 05AU14
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