HT383


KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

Big torque for your truck

Got a pre-1980 GM truck with a tired Small-Block? Forget the rebuild and take your trusty truck’s capability to the next level with our big-torque HT383 stroker engine.

PART NO. 19355720

WhyBuy

323 HP @4200 RPM

WhyBuy

444 LB-FT @3000 RPM

Torque for your truck

Extra displacement and unique parts are designed to build a wide, flat torque curve. The 323 hp and 444 lb.-ft. of torque is power you simply won’t get with a stock-type rebuild.

Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.  

CHEVROLET PERFORMANCE BENEFITS

CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

12 Months/Unlimited Miles

Designed, engineered, and tested to stringent Chevrolet specifications

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Installation Kit included for ease of installation

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Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

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Simplified part-sourcing process, eliminating the need to independently source compatible components

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Factory tuned and calibrated to fit your unique application

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Eligible for $500 or $750 mail-in rebate  See Rebate website for details

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Xmark
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CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

CHEVROLET PERFORMANCE BENEFITS

CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Check

Simplified part-sourcing process, eliminating the need to independently source compatible components

Check

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500 or $750 mail-in rebate  See Rebate website for details

Check

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

CHEVROLET PERFORMANCE BENEFITS

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Xmark

Simplified part-sourcing process, eliminating the need to independently source compatible components

Xmark

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500 or $750 mail-in rebate  See Rebate website for details

Xmark

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

CHEVROLET PERFORMANCE BENEFITS

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

Limited Warranty-Backed by Chevrolet

12 Months/Unlimited Miles

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Xmark

Simplified part-sourcing process, eliminating the need to independently source compatible components

Xmark

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500 or $750 mail-in rebate  See Rebate website for details

Xmark

Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Parts only when consumer repaired or installed in non-highway application. Coverage limited to defects in material and/or workmanship of the specific part only. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice.

 

††Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized  Reseller. Rebate offer not available with other offers. Rebate form and details available at chevrolet.com/performance/offers. Rebate form must be postmarked by 1/31/23. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/22 - 12/31/22.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

HT383 Tech Specs

  • Part Number: 19355720
  • Engine Type: Chevy Small-Block V-8
  • Displacement (cu. in.): 383
  • Bore x Stroke (in.): 4.000 x 3.800
  • Block (P/N 88962516): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 12489436): 4340 forged steel
  • Connecting Rods (P/N 12497624): Heavy-duty Forged steel
  • Pistons (P/N 12499103): Hypereutectic aluminum
  • Camshaft Type (P/N 14097395): Hydraulic roller
  • Camshaft Lift (in.): .431 intake / .451 exhaust
  • Camshaft Duration (@.050 in.): 196° intake / 206° exhaust
  • Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers
  • Valve Size (in.): 1.940 intake / 1.500 exhaust
  • Compression Ratio: 9.1:1
  • Rocker Arms (P/N 10089648): Stamped steel
  • Rocker Arm Ratio: 1.5:1
  • Water Pump (P/N 88894341): Cast iron
  • Recommended Fuel: Regular pump
  • Ignition Timing: 32° Total @ 4,000 rpm
  • Maximum Recommended rpm: 5000
  • Balanced: External

Mobil 1 is now The Official Motor Oil of Chevrolet Performance.

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.