
Additional Highlights of the GM Performance Parts Exhibit
CT525 6.2LS
Based on Corvette’s powerful LS3 engine. This Circle Track crate engine features a carburetor intake manifold, 6-quart racing oil pan, aluminum block with cross-bolted six-bolt main caps, and high-flow LS3 rectangular-port cylinder heads. All that’s needed to complete the assembly is a carburetor, starter, and our LSX ignition controller—available from GM Performance Parts.
Based on LS3 6.2L engine
Aluminum deep-skirt block
525 hp/471 lb-ft torque
SuperMatic 4L85-E 4-Speed Transmission
Newly designed for use on our ZZ572/720 crate engine
All new parts, including additional clutch plates
Improved valve body for firmer shifts
Direct bolt-on for Gen 1 small block and all big blocks
Gear ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75
NOTE: Use with electronic controller P/N 12497316 or 19212657.































