Chevrolet Performance Sp383 Efi

Chevrolet added their revised cylinder heads that incorporate a new high rpm valvetrain to help the sp383 produce 435 horsepower and 445 lb ft of torque. Chevrolet performance s new sp383 efi is based on the zz6 efi crate engine including its high flow fast burn type cylinder heads with modern valvetrain technology but features a longer 3 800 inch stroke to help build more torque. Sp383 efi turn key connect cruise 450 hp 5800 rpm 436 lb ft torque.