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Mike C · 09-28-2003, 10:32 PM

The L82 was rated at 245 hp in the 73 and 74 Z/28s. It was 255 in the 74-75 'vettes and down 30 more after cat converters show up. It is ~ 9:1 compression and has 76cc heads that have 2.02/1.60 valves and screw in studs and guideplates. It was the most powerful SBC from its intro until the LT1 debuted. They run OK, but the open chamber heads are down 20hp compated to the earlier closed chamber ones, all else being equal.

09-28-2003, 10:32 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,740	The L82 was rated at 245 hp in the 73 and 74 Z/28s. It was 255 in the 74-75 'vettes and down 30 more after cat converters show up. It is ~ 9:1 compression and has 76cc heads that have 2.02/1.60 valves and screw in studs and guideplates. It was the most powerful SBC from its intro until the LT1 debuted. They run OK, but the open chamber heads are down 20hp compated to the earlier closed chamber ones, all else being equal. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax