Corvette Action Center - The ultimate online hub of Corvette news and information! Click here to go to the Corvette Forums!

Supporting Vendors / Dealers - Supporting Membership - Advertising Information - Corvette Amazon Shop
Page 2 of 3 FirstFirst 123 LastLast
Results 16 to 30 of 36
  1. #16
    Member
    Join Date
    May 2002
    Location
    Central NY
    Posts
    282

    Default

    I like the L88's and the ZO6's but I still, 13yrs later salivate over the ZR-1. I would love to own a 93-95

  2. #17
    SwaveDave
    Guest

    Default

    Id like to own a few different ones...but my favorite for 'beating on' would have to be an L88/ZL1 . Another good one , was Callaways Twin Turbo LT 1 1988-1991 (?) !

  3. #18
    427SB
    Guest

    Default

    A guy had a couple of the 88-91 Callaways at the Knoxville Expo a couple years ago for sale. They both were in dire need of restoration. Unique though. It amazes me how they crammed twin turbos with intercoolers under the hood of that thing.

  4. #19
    SwaveDave
    Guest

    Default

    427sb,

    One of the guys in my former Corvette Club, had a Callaway Twin Turbo 1990 . I love the looks of the engine from the top. That had to be a solid 12 second car . They are really going up in price too.

  5. #20
    Member
    Join Date
    Feb 2003
    Location
    YANKEES UNIVERSE
    Posts
    67
    Corvette(s)
    1970 454/390 1969 350/300

    Default

    In one of the vette books i have they talk about how ZORA in 1969 at the new car introductions,him and two other engineers took a 69 t top specially outfitted with a 454 LT-2,an all aluminum ZL-1 derivative,which blasted down the quarter mile in 10.5 seconds at 130 mph.The car was specially equpped with open headers and racing slicks and 3.70 gears,and a special Turbo-Hydramatic transmission.The same car with the 427 ZL-1 ran the quarter in 12.6 seconds at 116 mph.The engineers believe that the 454 LT-2 put out no less than 710 hp.All this info came from Mike Mueller's book-CORVETTE 1968-1982....a must have for any Shark car enthusiast,like myself.....THANKS JERRY

  6. #21
    Member
    Join Date
    Feb 2003
    Location
    Georgia
    Posts
    88
    Corvette(s)
    59 60 62 63,63,63 65 67,67 69,69,69,69,69 70

    Default

    Theoretically, the second design L88, which was the same engine as the ZL1, except for the aluminum block should be the highest horsepower factory installed Corvette engine. Many engineers have long contended that a cast iron block would outhorsepower an aluminum one, all other things being equal, because of heat retention. Of course any such advantage would be offset by the lighter weight.

    I have an original 69 L88. In the early 90's, I also owned a 90 ZR1 which I bought new and a 90 Callaway, which I bought used in late 90. I've owned the L88 since the mid 80's. Mine is the first design engine, which all the L88's were during 67, 68, & 69 up until late in the year, so it's slightly down on power from the second design open chamber design. The open chamber motor not only had the compression dropped from 12.5:1 to 12:1, but had a more radical camshaft which it shared with the ZL1 (as well as the LS7 crate motor the next year) From personal experience I can say for sure that the 2 late models were no match for the L88 from a roll, through the gears, but outside of those parameters, the advantage goes away. With both the other cars .5 overdrive ratio, it'd be hard to get an L88 geared tall enough to run on top, and still have anything down low with the M22's 2.20 first gear. I wouldn't consider driving the old car as fast as the other two would run on top anyway.

    From a pure horsepower standpoint, there's no question in my mind that the nod goes to the L88, but with the new cars' overall advantages it would be impossible for the old car to match the new stuff overall.

    As far as the horsepower rating on these old motors, the upper 500's rumors have been flyin' for years with 560 being commonly quoted for the L88. Needless to say this was with open headers and the stock manifolds were chokers in this case especially.

    One other super star that got so close, but so far was the LS7, which GM never got around to installing in a car sold to the public. It's arguable the baddest of the bad and was essentially a second design L88 with 454 inches and cast iron heads, instead of the aluminum ones on the L88. I've got one of these original crate motors in a 69 Camaro with headers and a 3" exhaust system and it's definately the quickest car I've owned with any roots to stock stuff.

  7. #22
    Brett
    Guest

    Default

    Thank you, SL. That was exactly what I was looking for. I couldn't straighten out all of the L88 numbers on my own, and needed some real world info.

    I am very interested to hear about the LS7. It's something I have always been interested in, and it's all I have been talking about on here lately! You have one?!?! How did you get it?




    Brett

  8. #23
    6 Shooter's Avatar
    Join Date
    May 2002
    Location
    Missoura Ozarks
    Posts
    9,596
    Corvette(s)
    Millennium Yellow LS6 enhanced Roadster

    Default

    I love the late 60 and early 70 model Vette's with their huge HP rating's, but in stock form they just can't hook-up and run with the Z Boys (ZR-1/Z06).

    I'd have to say the 2002/3 Z06 is the Most Powerful Factory Produced Corvette if running from the bottom to top end counts !

  9. #24
    Brett
    Guest

    Default

    I totally agree, 6shooter. The technology everywhere else on the car puts them miles ahead. They are clearly the best performing 'vettes. I just wanted to get the lowdown on the absolute raw horsepower of the L88.

    By the way, you considering selling your LT-4 anytime soon? That is one hot ride! Perfect colors. And the LT-4 to boot!

    Also, what is the badge on the side in your side-shot?


    Brett

  10. #25
    Member
    Join Date
    Feb 2003
    Location
    Georgia
    Posts
    88
    Corvette(s)
    59 60 62 63,63,63 65 67,67 69,69,69,69,69 70

    Default

    6 Shooter, the question was most powerful, not most well balanced package. I'll agree that putting it to the ground is what really matters, but it doesn't always reflect the most power available.

    Brett, the LS7 was available over the counter from any Chevy dealer, just like today's ZZ502 and countless other crate engines (including the 2 different models of the soon to be released ZZ572 with 610 & 710 horsepower) In the case of my engine, Floyd Garrett's Muscle Car Museum in Tenn. had several of them that were bought from somebody's old stock. The previous owner of my Camaro bought one and installed it several years ago.

  11. #26
    vettepilot
    Guest

    Default

    I would just like to add the enormous TQ that those big blocks produced compared to even the LS6 of today. I can't recall the exact TQ figures, but the real advantage was the low RPM range where it came in.
    The LS6 that's in the Z06 is a 405 HP/400lb ft TQ engine, I think the combination is why Chevy says it's the most powerful ever placed in a Corvette. (over the LT5)
    Of course Chevy could be playing with words.. those big blocks were in Stingrays... not Corvettes if you get my drift.

    vettepilot

  12. #27
    6 Shooter's Avatar
    Join Date
    May 2002
    Location
    Missoura Ozarks
    Posts
    9,596
    Corvette(s)
    Millennium Yellow LS6 enhanced Roadster

    Default

    Originally posted by Brett
    I totally agree, 6shooter. The technology everywhere else on the car puts them miles ahead. They are clearly the best performing 'vettes. I just wanted to get the lowdown on the absolute raw horsepower of the L88.

    By the way, you considering selling your LT-4 anytime soon? That is one hot ride! Perfect colors. And the LT-4 to boot!

    Also, what is the badge on the side in your side-shot?


    Brett
    The Tiger in my Tank . . .

  13. #28
    Member
    Join Date
    Feb 2003
    Location
    Georgia
    Posts
    88
    Corvette(s)
    59 60 62 63,63,63 65 67,67 69,69,69,69,69 70

    Default

    Okay, so here's a trivia question for you guys................what's the highest torque rated engine ever factory installed in a Corvette? (yes I have one and yes I agree with the rating)

  14. #29
    Brett
    Guest

    Default

    The LS5 in '70?



    Brett

  15. #30
    Brett
    Guest

    Default

    6shooter, do all LT-4's have the grand sport badge?



    Brett

Page 2 of 3 FirstFirst 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© CORVETTE is a registered trademark of the General Motors Corporation & Chevrolet Motor Division.  Neither Chevrolet Motor Division nor any subsidiaries of GM© shall bear any responsibility for CorvetteActionCenter.com content, comments, or advertising. CorvetteActionCenter.com is independent from GM© and is not affiliated with, sponsored or supported by GM©.  Copyright/trademark/sales mark infringements are not intended, or implied.  All Rights Reserved