7400 VORTEC 96-01
L29
1996–2000 Chevrolet/GMC C/K GMT-400 platform trucks 2500 and 3500
1996–1999 Chevrolet Suburban 2500/GMC Suburban 2500 (option)
1996–2000 Chevrolet Express 3/4 or 1 ton
L21:
1998–2001 Chevrolet Kodiak/GMC TopKick/Isuzu H-Series 4500 5500
1998–2001 Kodiak/Topkick
1998–2001 P12 HD Motorhome Chassis. The Workhorse W-20 is a clone of the P12 Chassis.