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#1
03-04-2002, 08:34 PM
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Re: 1970 vs 1971 LS-6
Used only in the Corvette production for 1971, If memory serves only 188 were produced. I have never had an original appart, and GM specs have varried, but I believe it to be a carry over from the 1970 Chevelle only platform, just with the open chamber aluminum heads.
Same cam and pistons ect...??
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#2
03-05-2002, 05:58 AM
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1970 vs 1971 LS-6
Can anyone describe the difference between the 1970 and 1971 LS-6? 450hp vs 425hp
Compression 11.25 vs 9.x? How was this obtained closed chamber piston with open chamber heads? Was the cam changed? Help here would be appreciated...
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#3
03-11-2002, 05:06 AM
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Re: 1970 vs 1971 LS-6
1970 LS.1 rated @ 450 H.P. had 11.25:1 compression ratio. Mechanical lifter cam, and an 800 CFM Holley, rectangular port cast iron heads, forged pistons and four bolt caps. 1971 LS:6 rated @ 425 H.P. dropped the compression ratio to 9:1.
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