1997 - 2004 21st Century Muscle Cars 
Corvette LS2 403 CID Engine Package 
Retro Fit for LS1 Cars

550 BHP / 500 lbs-ft of torque

Package includes:

Engine removal, inspection and disassembly
• 4.000" stroke forged steel crankshaft
• 4.005" forged aluminum pistons
• 6.125" fully machined, 4340 forged steel connecting rods
• Computer balanced and blueprinted
• Lingenfelter CNC ported & polished LS2 cylinder heads
• 2.055" / 1.57" one piece stainless steel valves
• Three angle valve job, hand blending of valve seats
• CC chambers, surface, set spring heights and assembly
• Competition Cams dual valve springs, titanium retainers
• Custom Competition Cams camshaft
• Modified LS2 oil pump assembly
• Fast 90 mm composite intake manifold
• Ported & polished throttle body
• Low temperature thermostat
• All necessary gaskets, fluids & bolts
• Professional assembly & engine installation
• Engine testing & expert PCM tuning
• Chassis dyno testing before & after installation
• 21^st Century Muscle Cars 2 year / 24,000 mile warranty

403 CID LS2 550 HP Package Price

Price  $14,995.00

*Includes automatic transmission shift improvements. Some applications may benefit from a higher stall torque converter. Please ask your salesperson for details and prices. Normal installation time required: 3 weeks with prior notification. Items on this page are not legal for sale or use on California pollution controlled motor vehicles unless they are listed with an E.O. number.