• BER 320-NC-EXT - Bert 1-piece externally balanced flywheel - new Chevy bolt pattern for GM Crate Engine with HTD
• BER 320-NC - Bert 1-piece internally balanced flywheel - new Chevy bolt pattern with HTD
• BER 320-LS1 - Bert 1-piece flywheel - LS1 engine with HTD