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Chevrolet and GM Performance Parts - HT 383 Parts List
     The HT 383 truck engine is now here. This crate engine produces 325 HP @ 4,500 RPM and 415 ft/lbs @ 3,500 RPM. The HT 383 is specially tuned for torque and is a great truck engine. This page contains a list of parts for the HT 383 as it was first release by GM.
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GMPP HT 383 Main Page GMPP HT 383 Pictures
GMPP HT 383 Parts List GMPP HT 383 Partial Engine
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Chevrolet ZZ450 Main Page Chevrolet ZZ450 Pictures
Chevrolet The SBC 50th Anniversary. Chevrolet ZZ383-500
Chevrolet ZZ383-500A Pictures Chevrolet ZZ383-500 Pictures
Chevrolet ZZ383-500 Options Photos Chevrolet ZZ383-500 Parts Photos
We have more GM and Chevrolet Performance Engines available.
We have more GM Stock Replacement Long-block Goodwrench Engines available.
We have more “Gen 3” and “Gen 4” Design Engines available. (LS1, LS2, LS6, LQ4, LS7)

     The HT 383 is specially tuned for torque and delivers impressive small block truck power. The HT 383 was designed to be a work horse with over 400 ft. lbs. of torque from 2,500 RPM to 4,000 RPM! The fact that it also produces 325 HP at 4,500 RPM adds to it’s reputation as one of the best small block truck engines available.
Note: This is a parts list for this crate engine which was made by GM. We may not have prices for some of these parts on our site. If you need a part and/or price, call us using our toll free 1-800 number and we will be glad to help you. Some part numbers may have changed or may have been discontinued by GM since this list was first made.
P/N DESCRIPTION
12499101 HT 383 Crate Engine
12499106 383 Partial Engine
88962516 383 Bare Block. Cast iron 4-bolt main.
14091563 Plug, engine block oil pressure crossover.
14084945 Plug, engine block coolant drain hole.
12499102 Bearing, kits standard front & intermediate
12499108 Bearing, kits standard connecting rod.
10120993 Bearing, standard rear.
10168527 Bolt/screw, cylinder head (short).
10168526 Bolt/screw, cylinder head (medium).
10168525 Bolt/screw, cylinder head (long).
12557326 Gasket, cylinder head.
14078832 Plug, engine block oil cooler hose hole.
12561389 Stud, crankshaft bearing cap.
12558060 Vortec cylinder head (L31) assembly.
00141216 Pin, cylinder head location.
12491165 Installation Instructions
03635823 Plate, engine I.D. “Manufactured by GM”.
03736406 Pin, special dowel 5/8” x 1/32”
01401685 Bearing, clutch pilot.
09422297 Nut, hex lock/torque-tension/ .375-16.
12489436 Crankshaft assembly.
10046031 Pin, flywheel location.
14088556 Housing, crankshaft rear oil seal.
10144154 Pin, crankshaft rear oil seal housing location.
14101058 Stud, crankshaft rear oil seal retainer.
10108645 Nut, crankshaft rear oil seal retainer.
12555714 Gasket, crankshaft rear oil seal housing.
14101030 Screw, 0.25-20 x 0.875
14101032 Screw, 0.25-20 x 1.75
00106751 Key, wooddruff #9 .187 x .75
12554816 Deflecto, crankshaft oil.
14088765 Flywheel assembly.
14088764 Bolt/screw, flywheel.
12498008 Balancer assembly, crankshaft.
12497624 Rod assembly, connecting.
12499103 Piston, kit. .005 O/S
09417950 Bolt, hex .312-18 x .750 280m.
09780631 Lubricant, valve lifter.
12557390 Nut, valve rocker arm.
03744340 Ball, valve rocker arm.
10066063 Arm, valve rocker.
10046089 Gasket, valve cover.
03997752 Plug, camshaft rear bearing hole.
12554553 Pin, camshaft dowel.
03874878 Multiple Bolt/Screw, oil pump drive.
10168501 Retainer, camshaft.
14093637 Bolt/Screw, camshaft retainer.
14097395 Camshaft Assembly
17120735 Lifter Assembly, valve.
12550002 Guide, valve lifter
14101116 Retainer, valve lifter guide.
P/N DESCRIPTION
12499107 Ring kit, piston .005 O/S
12557558 Pan, oil.
12553058 Reinforcement, oil pan.
12553059 Reinforcement, oil pan.
10108676 Gasket, oil pan.
09440046 Nut, oil pan.
14080362 Stud, oil pan.
14101092 Stud, oil pan.
09985969 Sealer, oil pan.
12555285 Pump Assembly, oil (with screen)
03764552 Shaft, oil pump drive.
10046007 Bolt/Screw, oil pump.
03764554 Retainer, oil pump drive shaft.
10110897 Plug, engine block oil galley.
10055724 Tube Assembly, oil level indicator.
10077153 Indicator Assembly, oil level.
14101091 Cover, engine block oil filter hole.
09985247 Sealer, engine coolant temperature gage sensor.
09985688 Oil, engine.
12558300 Cap Assembly, oil filter.
03952301 Adapter Assembly, oil filter.
03951644 Bolt/Screw, oil filter adapter.
12356818 Bolt/Screw, valve cover.
00585927 Pin, dowel 5/16” x 9/16”.
12562818 Cover Assembly, engine front.
14081701 Plug, engine oil pressure switch hole.
12555595 Pump Assembly, water.
12552096 Bolt/Screw, water pump.
03754587 Gasket, water pump.
12496820 Manifold Assembly, intake.
12561347 Gasket, intake manifold.
09985969 Sealer, intake manifold.
12550027 Bolt/Screw, intake manifold
09440033 Bolt/ oil pan.
09442963 Bolt/Screw, engine wiring harness.
00984051 Paint, engine.
10241740 Rod Assembly, valve push.
09437766 Bolt/Screw, valve lifter guide.
12555269 Cover Assembly, valve rocker arm.
10066008 Bolt/Screw, valve rocker arm.
12552129 Sprocket, camshaft.
14088784 Sprocket, camshaft.
14088763 Chain, camshaft timing.
05613611 Spark Plug Assembly, R44LTS.
09417954 Nut, .312-18 hex.
09439930 Bolt/Screw
03815933 Bolt, 7/16”-20 x 2.
09424877 Bolt, hex.
14094069 Cover, fuel pump opening.
12560223 Gasket, valve rocker arm cover.
09442963 Bolt, hex flange head.
09440033 Bolt/Screw, engine wiring harness clip.