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Chevrolet - ZZ450 450 HP 383CI STROKER CRATE ENGINE | |
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For those people that want a “383 Stroker” or just something a step above the ZZ430.
Our Race Shop not only came up with a stroker engine, but also an improved version of the much acclaimed ZZ430 and HT 383 crate engines.
The full ZZ450 “383” engine is rated at 450 HP @ 5,800 RPM, 458 FT/LBS @ 4,600 RPM. You can expect much more from the
ZZ450 with all the optional bells and whistles added. The Base engine comes equipped like the ZZ4 comes, less
carburetor, starter, plug wires. This is a Chevrolet exclusive engine. Keys - scperformanceeng, gmperformanceeng, or gmgoodwrencheng for SC, GM, or Goodwrench engines. Use allengine for a complete list of all three. |
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WEB SITE NAVIGATION INFORMATION | |
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383CI STROKER ENGINES NAVIGATION | |
| GMPP HT 383 Main Page | GMPP HT 383 Pictures |
| GMPP HT 383 Parts List | GMPP HT 383 Partial Engine |
| GMPP ZZ383/425 Main Page | Chevrolet Premium ZZ383/425 Main Page |
| 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) |
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ZZ450 DESCRIPTION | |
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ZZ450 “383 Stroker”
450 HP @ 5,800 RPM, 458 FT/LBS @ 4,600 RPM (Base P/N SC450BLB, Premium P/N SC450PE) Note: Pictures show the ZZ450 with optional Chevy orange paint for $85.00 extra. |
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For those people that wants a “383 Stroker”, our Race Shop team has come up ZZ450 to fill that
need. Our Race Shop starts off with the 383 short block (P/N 12498332) which is a solid platform for our ZZ450.
The crankshaft is a forged 4340 steel that could be used in a 600 to 700 horsepower engine. The connecting rods are
designed to support power levels up to 550 HP. The new PM rod has proven to be stronger than the older style pink rod. Its four bolt main
block and high silicon pistons top off the package. The ZZ450 has a lengthened stroke from 3.48” to 3.800” and keeps
the same standard bore of 4.00” (3.800” Stoke x 4.00” Bore = 383 Cubic Inches).
The results of all our Race Shop’s efforts were not only to come up with a stroker engine, but also an improved version
of the much acclaimed ZZ430. Therefore they named it the ZZ450. For those that just want to build their own from the base up, they are offering the Base engine. The Base engine comes equipped like the ZZ4 comes, less carburetor, starter, plug wires. It has standard black valve covers and long cast iron water pump. Note: The pictures of our ZZ450 on these pages are of the original design ZZ450 before we started using the 383 short-block as the base for this engine. These pictures will be updated whenever it can be worked out with or Race Shop’s and the Webmaster’s schedule for another photo session. |
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| Get the ZZ450 800x600 resolution Wallpaper for your PC. View the picture then set as Wallpaper. |
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ZZ450 TECHNICAL INFORMATION | |
| Parameter | Specification |
| Horsepower: | 450 @ 5,800 RPM |
| Torque: | 458 @ 4,600 RPM |
| Max. Rec. RPM: | 6,100 RPM |
| Comp. Ratio: | 10.1:1 |
| Partial Engine: | GM P/N 12499106, 383ci |
| Block: | P/N 88962516, Cast Iron, Four Bolt Main, 383 Stroke |
| Crankshaft: | 12489436 Forged 4340 Steel |
| Connecting Rods: | P/N 12497624 Stroker PM |
| Pistons: | P/N 12499103 High Silicon .005 O/S |
| Piston Rings: | 12499107 set .005 O/S |
| Camshaft: | H.O.T. Cam P/N 24502586, Hyd. Roller, Lift (.525” I, .525” E), Duration @ .050” (218° I, 228° E) |
| Timing Chain: | P/N 12371043, Single Roller Design |
| Timing Cover: | P/N 12342089, Chrome |
| Lifters: | P/N 12371042, Roller Lifter Kit |
| Cylinder Heads: | P/N 12464298, Cast Aluminum Fast Burn |
| Intake Valves: | P/N 12555331, 2.00” |
| Exhaust Valves: | P/N 12551313, 1.55” |
| Valve Springs: | P/N 12551483, LT4 Style |
| Valve Spring Ret.: | P/N 24503856 |
| Valve Caps: | P/N 10212808 |
| Valve Spring Shims: | P/N 10212809 |
| Valve Lash: | Hydraulic |
| Push Rods: | GM P/N 12371041 |
| Rocker Arms: | P/N 12370839 1.6 Self-Aligning Roller Rockers, Crane or GM. Crower or Comp Cams Optional. |
| Intake Manifold: | Edelbrock RPM P/N 7116 Or GM P/N 12366573 |
| Spark Plugs: | MR43 LTS, Gap .045” For HEI Distributor |
| Ignition Timing: | 32° total @ 4000 RPM with vacuum advance disconnected. |
| Fuel: | 92 Octane |
| Oil Pan: | P/N 12557558 5 Quart Camaro/Caprice |
| Oil Pan Gasket: | GM P/N 10108676 |
| Oil Filter: | UPF1218 |
| Oil Breather (Base): | None, See Oil Fill Cap |
| Oil Fill Cap (Base): | GM P/N 93439687 |
| Valve Cover (Base): | 12555269, Standard Black |
| Damper: | P/N 12498008, Balanced 383 Stroker |
| Flex Plate: | P/N 14088765, 153 Tooth |
| Water Pump (Base): | GM 12529305 Long style cast iron with gasket. 180° F thermostat recommended. |
| Air Cleaner: | GM P/N 12342080 (Proform 141-307) |
| Oil Breather (Premium): | GM 12341989 (Proform 141-616), Chrome Push-In |
| Valve Cover (Premium): | Special, P/N 24502466 CNC ZZ450 |
| Carburetor: | Holley, (#0-80508S) 750 CFM, Vacuum Secondary. 750 cfm Double Pumper Optional. |
| Distributor: | P/N 88961867 GM HEI, Large Cap |
| Starter: | GM Gear Reduction |
| Water Pump (Premium): | Edelbrock, Choice Of Short Or Long Style |
| Plug Wire/Loom Kit: | GM Red 8 MM, Stainless Wire Looms |
| Note: Parts as well as prices and specifications are subject to change. Please call and talk to one of our parts sales persons prior to ordering for the most current information. Parts highlighted in yellow above are included with the Premium engine and do not come on the Base engine. |
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ZZ450 OPTIONS | |
| Dyno Testing: | Offered as an option only for an additional $450.00 |
| Intake: | Edelbrock Air Gap Intake $95.00 |
| Block Color: | Chevrolet Orange Paint $85.00 |
| Flywheel: | 153 Tooth, LT Weight $195.00 or 168 Tooth $95.00 |
| Flexplate: | 168 Tooth $35.00 |
| Carburetor: | P/N 0-4779C Holley Double Pumper - $85.00 Extra. Features - Model 4150, Double Pump, Mechanical Secondaries, Center Hung Float Bowls, Manual Choke, Power Valve Blow-Out Protection. |
| MSD Upgrade: | Includes 6AL Box, Coil, and Billet Distributor - $420.95 |
| ZZ450 Power Plus: |
This option includes a bigger camshaft and the all new Edelbrock E-Tec cylinder heads which is worth an extra 15 HP - $350.00. Offers 480 HP @ 5,900 RPM and 480 ft./lbs. of torque @ 4,300 RPM. See dyno results below. Camshaft Specs - GM P/N 12370847, Hyd. Roller Lift (.539” I, .558” E), Duration @ .050” (234° I, 242° E) [1.5:1 RR Specs] This cam requires the following upgrades: Crane high lift hydraulic roller lifters and Manley heavy duty push rods, both included. We use 1.5 ratio rocker arms with this option. 1.6 ratio rocker arms will not work with this option. E-Tec Cylinder Head - P/N 60989 E-Tec 200 (Intake Valves 2.02”, Exhaust Valves 1.60”) |
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ZZ450 DYNO RESULTS | |
| RPM | Torque | HP | RPM | Torque | HP | RPM | Torque | HP | RPM | Torque | HP |
| 2700 | 398 | 204 | 3600 | 434 | 297 | 4600 | 458 | 401 | 5600 | 414 | 441 |
| 2800 | 405 | 215 | 3800 | 447 | 323 | 4800 | 453 | 414 | 5800 | 406 | 450 |
| 3000 | 418 | 239 | 4000 | 450 | 343 | 5000 | 448 | 426 | 6000 | 398 | 454 |
| 3200 | 412 | 251 | 4200 | 452 | 361 | 5200 | 441 | 436 | 6100 | 388 | 451 |
| 3400 | 418 | 271 | 4400 | 449 | 376 | 5400 | 426 | 438 |
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ZZ450 WITH POWER PLUS UPGRADE DYNO RESULTS | |
| RPM | Torque | HP | RPM | Torque | HP | RPM | Torque | HP | RPM | Torque | HP |
| 2596 | 429 | 212 | 3500 | 430 | 286 | 4400 | 481 | 403 | 5300 | 454 | 458 |
| 2700 | 427 | 219 | 3600 | 439 | 301 | 4500 | 481 | 413 | 5400 | 460 | 473 |
| 2800 | 433 | 231 | 3700 | 447 | 315 | 4600 | 480 | 420 | 5500 | 450 | 471 |
| 2900 | 436 | 240 | 3800 | 455 | 329 | 4700 | 479 | 429 | 5600 | 443 | 472 |
| 3000 | 432 | 247 | 3900 | 465 | 345 | 4800 | 478 | 437 | 5700 | 437 | 474 |
| 3100 | 429 | 253 | 4000 | 471 | 359 | 4900 | 474 | 442 | 5800 | 428 | 472 |
| 3200 | 424 | 258 | 4100 | 477 | 372 | 5000 | 470 | 447 | 5900 | 428 | 481 |
| 3300 | 421 | 265 | 4200 | 480 | 384 | 5100 | 464 | 451 | 6000 | 415 | 474 |
| 3400 | 424 | 274 | 4300 | 482 | 395 | 5200 | 462 | 458 | 6100 | 409 | 475 |
| Note: Results were obtained with the ZZ450 and the Power Plus upgrade. | |||||||||||
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