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#72
12-04-2009, 01:18 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
18 1970 big block Chevelles got the aluminum heads.
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Rick 69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.) 69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan  Don't text and drive. Somebody's life may depend on it! 
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#73
12-04-2009, 01:46 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
What casting are those Alum Chevelle heads? I just checked my Colvin book for '70-75 and don't come up with any alum heads for that time except the '71 074 castings. All 70 and up had tapered seat spark plugs, so I was wrong, even the 842 castings would be incorrect.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#74
12-04-2009, 02:07 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
Mr.L-89.I would be curious to know what wayne Bushey of National Nostalgic nova thought about the L-89 as a legitimate L-89 car.i have spoke to Wayne quite a few times about a possible L-89 car.Mr.L-89 ,it great your commenting on the car;i think most of us want to believe there is a original L-89 nova;i think it is mostly the 074 heads ;if the car was a 69 with .,say a 842 head it would be an easier shoein.chris
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#75
12-04-2009, 04:44 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
[ QUOTE ]
Jim, the car in discussion is a 1970 model year Nova...not 1969. Just wanted to be sure you knew that. [/ QUOTE ] OHHH, I'M AWARE OF THAT.... 
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aka - Mighty Mouse
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#76
12-04-2009, 05:30 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
What was the compression ratio on the 71 LS6 Vette ? It was low as I recall.
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#77
12-04-2009, 05:37 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
1971 Corvette LS-6 454ci compression ratio 9:1. 425 hp @5600, 475 tq @4000. Has a domed piston.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#78
12-04-2009, 05:46 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
I am going off of memory but I thought you needed to modify the dome of a high compression closed chamber piston because it was too close to some part of an open chamber head. If the motor was out did it get rebuilt with new pistons? If so would the old pistons still be available for inspection?
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#79
12-04-2009, 06:12 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
Kim
I currently know about 3 of the original 18 1970 L-89 factory assembled SS Chevelles. They reportedly came w/842 heads.. They are still on this earth today and documented.
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#80
12-04-2009, 06:37 AM
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Re: One of ? L89 Nova for sale at Russo and Steele
[ QUOTE ]
Kim I currently know about 3 of the original 18 1970 L-89 factory assembled SS Chevelles. They reportedly came w/842 heads.. They are still on this earth today and documented. [/ QUOTE ] Post photos please.
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