CT525 CRATE ENGINE

Enhanced with Forged Pistons
and upgraded rod bolts

CT525 CRATE ENGINE

Enhanced with Forged Pistons
and upgraded rod bolts

Chevrolet Performance CT525 Circle Track Small Block Crate Engine 19418211

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PARTS INTENDED FOR COMPETITION USE ONLY.
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High RPM Performance With New Forged Pistons

Based on the 6.2L LS3, the CT525 is a deep-breathing high-level champ upgraded with forged aluminum pistons and upgraded rod bolts for serious racing. It is based on the LS engine family and delivers serious power for serious racers, including Super Late Model and Modifiers.

PART NO. 19434598

Installation Guide

Technical Manual

533 HP @6600 RPM

477 LB-FT @5200 RPM

Running strong

The CT525 sealed crate engine is based on the 6.2L LS3, but we’ve adapted it to circle track racing with a carbureted intake manifold, a high-lift Roller camshaft, upgraded rod bolts, 6-quart racing oil pan and more.

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Installation Guides

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

Installation Guides

CT525 Tech Specs

Part Number: 19434598
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 12673475): Cast-aluminum with six-bolt, cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12649190): Powdered metal
Pistons (P/N 19418214): Forged aluminum
Camshaft Type (P/N 88958770): Hydraulic roller
Valve Lift (in.): .525 intake / .525 exhaust
Camshaft Duration (@.050 in.): 226° intake / 236° exhaust
Cylinder Heads (P/N 12629063): LS3 rectangle port; aluminum “as-cast” with 68-cc chambers
Valve Size (in.): 2.165 intake / 1.590 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12669995): Investment-cast, roller trunnion
Rocker Arms (P/N 12681275 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Maximum Recommended rpm: 6700
Reluctor Wheel: 58X
Balanced: Internal

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.

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Win with Integrity

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

CHEVROLET PERFORMANCE CIRCLE TRACK CRATE ENGINE^†