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Maven · 07-02-2007, 04:16 PM

LS2 vs LS3

LS2 is 6.0L/364ci , LS3 is 6.2L/376ci (LS3 has a .065" larger bore)

LS2 uses first gen style heads with Cathedral shaped intake port, and 15 degree valve angle(same as on the C5 Z06 LS6 engine, but with cheaper valves) 2.00" I valve and 1.55" E valve

LS3 uses new style L92/L76 based heads with rectangle intake ports, larger valves(2.16" I valve, 1.61"(or 1.58")E valve, a shallower (same as LS7) 12 degree valve angle, and (in the Vette) a higher lifter cam(.550 vs .520)

07-02-2007, 04:16 PM	#142
Maven Bowtie Technician Drives: 1969 Corvette Join Date: Jun 2007 Location: NJ, USA Posts: 38	LS2 vs LS3 LS2 is 6.0L/364ci , LS3 is 6.2L/376ci (LS3 has a .065" larger bore) LS2 uses first gen style heads with Cathedral shaped intake port, and 15 degree valve angle(same as on the C5 Z06 LS6 engine, but with cheaper valves) 2.00" I valve and 1.55" E valve LS3 uses new style L92/L76 based heads with rectangle intake ports, larger valves(2.16" I valve, 1.61"(or 1.58")E valve, a shallower (same as LS7) 12 degree valve angle, and (in the Vette) a higher lifter cam(.550 vs .520) __________________ ASE Master Auto Technician & Advanced Engine Performance Specialist GM Mark Of Excellence Platinum Award winner Oft consequences unintended, result from plans ill comprehended.