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525 RLB

525 RLB

QUALITY PARTS.
HIGH-CALIBER BUILD.

Offer Valid 1/1/24 to 12/31/24

$250 rebate* on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine**. Rebate amount dependent on the package purchased.

Sealed Crate Engine Communication

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PARTS INTENDED FOR COMPETITION USE ONLY.
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PARTS INTENDED FOR COMPETITION USE ONLY.
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PROPOSITION 65 WARNING.
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PROPOSITION 65 WARNING.
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The Power and Strength of Our LS Racing Engine in a Long Block

Chevrolet Performance’s 525 RLB is based on the LS engine family and is like the 6.2L CT525 but sold as a sealed long block for universal racing sanctioning bodies.

PART NO. 19435005

WhyBuy

533 HP @6600 RPM

WhyBuy

477 LB/FT @5200 RPM

A Winning Combination

A Corvette camshaft and the big-displacement l*T 6.6L truck engine combine for great LT performance and strength.​

By combining the large-displacement and heavy-duty elements of the L8T 6.6L engine and a unique camshaft based off the Corvette Stingray’s high-revving LT2 V-8, Chevrolet Performance have created the all-new L8P Performance crate engine.​

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, $750, or $1,000 mail-in rebate  See Rebate website for details

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Xmark
Xmark

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, $750, or $1,000 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, $750, or $1,000 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, $750, or $1,000 mail-in rebate  See Rebate website for details

 

Xmark

Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 - 12/31/24.

 

††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 roads, streets, or highways. Visit www.chevroletperformance.com/emissions for more details. 

 

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. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 to 12/31/24. 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. Rebate form and details available at chevrolet.com/performance/offers.

525 RLB Tech Specs

  • Part Number: 19435005
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Displacement (cu in): 376 (6.2L)
  • Bore x Stroke (in): 4.065 x 3.62 (103.25 x 92mm)
  • Block (P/N 12729604): Cast aluminum with 6-bolt, cross-bolted main caps
  • Crankshaft (P/N 12736809): Nodular iron
  • Connecting Rods (P/N 19170198): Powder metal with ARP bolts
  • Pistons (P/N 12533507): Forged aluminum
  • Camshaft Type (P/N 12366543): Hydraulic roller
  • Valve Lift (in): .525 intake / .525 exhaust
  • Camshaft Duration (@.050 in): 226” intake / 236” exhaust
  • Cylinder Heads (P/N 12675871): LS3 rectangular port; aluminum as-cast with 68cc chambers
  • Valve Size (in): 2.165 intake / 1.590 exhaust
  • Compression Ratio: 10.7:1 (nominal)
  • Rocker Arms (P/N 12696105): Investment-cast, roller trunnion
  • Rocker Arms (P/N 12681275): Investment-cast, roller trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Premium pump
  • Maximum Recommended rpm: 6700 RPM
  • Reluctor Wheel: 58x
  • Balanced: Internal
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Win with Integrity

Reject knockoff crate engines and choose a sure shot of adrenaline from Chevrolet Performance, a 20-year supporter and long-standing sponsor of grassroots racing nationwide.

CHEVROLET PERFORMANCE CIRCLE TRACK CRATE ENGINE

  • Features all-new GM OE parts
  • Factory-sealed for fair competition
  • Dyno tested for a minimum of 50 hours with 45 hours at wide-open-throttle (WOT)

COPIES OF THE CHEVROLET PERFORMANCE CIRCLE TRACK CRATE ENGINE

Imitations of the real CT350, CT400, and CT525 engines that are not designed, engineered, tested, and built by Chevrolet Performance.

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

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