Become a ltxtech.com member, Click here to register!
Fastbird

Results 1 to 10 of 10
  1. #1
    Bastardized LT1 Car


    Status
    Offline
    Join Date
    Sep 2008
    Location
    Lynchburg, Va
    Posts
    1,809

    Default Stock Specs of LT1 and LT4

    info gathered from LT1Engine.com


    Block Specs
    Displacement: 350 cubic inches, 5733 cubic centimeters, 5.7 liters
    Block Material: Cast Iron
    Main Bearings: 2-Bolt Centers and Ends (The Corvette LT1/LT4 had 4-bolt mains)
    Stroke: 3.48″
    Bore: 4.00″
    Compression Ratio: 10.4:1
    Combustion Chambers: 54 cubic centimeters
    Factory Redline Rating: 5700 Rotations Per Minute
    Bottom End
    Piston Material: (10159437) Eutectic Aluminum/Silicon Alloy
    Connecting Rod Material: (10108688) Powdered Metal
    Crankshaft Material: (12556307) Cast Iron
    Top End and Valvetrain
    Cylinder Heads: (10168448) Cast Aluminum, 2 valves per cylinder/16 valves total, ~212 CFM flow (Impala SS and
    Caprice heads were made of cast iron*)
    Valve Diameter: (intake- 10241743, exhaust- 12550909) 1.94 intake, 1.50 exhaust
    Valve Overlap: 41*
    Valvesprings: (10206040) 85 lbs, seated
    Camshaft Specs (12551705): 205/207 duration @ 50*, .447/.459″ lift, 117 Lobe Seperation Angle
    Rocker Arms: (10089648) 1.5:1 Stamped Steel
    Timing Chain: (10128485) Powdered metal butt link
    Intake and Fuel Delivery
    Fuel Delivery: Electronic Fuel Injection, sequential port
    Injector Size: (17124248) 3.0gps, 22lbs/hr speed density (1992-1993), 24lbs/hr mass airflow (1994-1997)
    Throttle Body: 48 millimeter twin butterfly
    Intake Manifold: (12552137) Aluminum
    Factory Power Ratings
    92-96 LT1 Corvette: 300bhp, 330lb-ft
    1996 LT4 Corvette: 330bhp, 340lb-ft
    1992 LT5 Corvette: 375bhp, 370lb-ft
    93-95 LT5 Corvette: 405bhp, 385lb-ft
    93-95 LT1 F-Body: 275bhp, 325lb-ft
    96-97 LT1 F-Body: 285bhp, 325lb-ft
    96-97 WS6/SS: 305bhp, 335lb-ft
    93-97 Firehawks: 315bhp, 340lb-ft
    Factory Camshaft Specifications:
    1992 Y-body: 205/207 0.451/0.450 lift 117 LSA
    1993-1995 Y-body, F-body: 202/207 0.450/0.460 lift 116 LSA
    1994-1996 B-bodies (including L99 4.3L): 191/196 0.418/0.430 lift 111 LSA
    1996 Y-body, 1996-1997 F-body: 200/207 0.447/0.459 lift 117 LSA
    1996 Y-body, F-body LT4: 203/210 0.476/0.479 lift 115 LSA
    Last edited by Adam; 02-26-2010 at 12:55 AM.

    :Jon:
    94 Z28 - Turbo LQ4 Build - T56 - Moser 9"
    06 Tundra DD - Michelin Go Fast tires
    99 WS6 T/A - 3800 Stall - 3.73 Gears
    07 Hayabusa - blacked out - brocks/hindle exhaust - sprocketed - PCIII - lowered & stretehed
    09 Yamaha R6 - Sold

  2. #2

    Default

    holy crap...

  3. #3

    Default

    There are a couple of little tweaks that can be made to a couple of specs which differ from what I've read on another site.

    Right now I don't know which info is correct, the info here or the info on grandsportregistry.com. Little stuff like the cam specs for the 96 LT1 'Y' body.

    Just trying to help.

    Jake
    My son, Ryan M. Cameron, graduated from West Point on 22 May 2010! He was commissioned as a 2nd Lieutenant and I pinned on his first pair of "Butter Bars" PROUDEST DAY OF MY LIFE!!

  4. #4

    Default

    Anyone know what accounts for the differences in HP and torque between the various models? With the LT4 or LT5 vs the LT1, the differences are obvious. But what is it about the Corvette LT1 that gives it 300HP vs 275HP for the pre-1996 F-body? Or what makes the 1996-1997 SS and the Firehawk have 30-40 more HP than, say, a typical 1995 Z28?

  5. #5
    Xtreme Member


    Status
    Offline
    Join Date
    Oct 2008
    Location
    las vegas
    Posts
    1,723

    Default

    sales my friend!
    would you pay the money for a corvette if the lesser price F-body had the same HP rating. As far as i am concerned the Lt1s are all the same, the vettes had true duals and lighter weight.
    Now the GS vette and the 96 6spd models were Lt4s and you know the obvious differences.

  6. #6

    Default

    Quote Originally Posted by 96lt1m6 View Post
    sales my friend!
    would you pay the money for a corvette if the lesser price F-body had the same HP rating. As far as i am concerned the Lt1s are all the same, the vettes had true duals and lighter weight.
    Now the GS vette and the 96 6spd models were Lt4s and you know the obvious differences.
    So you're saying that, apart from the fact that the Vette LT1 has four bolt mains, the Vette longblock is identical to the F-body longblock? The Vette doesn't have a better cam, or anything like that?

  7. #7

    Default

    Quote Originally Posted by StorminMatt View Post
    So you're saying that, apart from the fact that the Vette LT1 has four bolt mains, the Vette longblock is identical to the F-body longblock? The Vette doesn't have a better cam, or anything like that?
    there were a couple H.O. cams.

    http://en.wikipedia.org/wiki/Lt1_engine#LT1

  8. #8
    Xtreme Member


    Status
    Offline
    Join Date
    Oct 2008
    Location
    las vegas
    Posts
    1,723

    Default

    Factory LTX Camshaft Specifications**:
    1992 Y-body: 205/207 0.451/0.450 lift 117 LSA
    1993-1995 Y-body, F-body: 202/207 0.450/0.460 lift 116 LSA
    1994-1996 B-bodies (including L99 4.3L): 191/196 0.418/0.430 lift 111 LSA
    1996 Y-body, 1996-1997 F-body: 200/207 0.447/0.459 lift 117 LSA
    1996 Y-body, F-body LT4: 203/210 0.476/0.479 lift 115 LSA

  9. #9
    "The Rock"


    Status
    Offline
    Join Date
    Jul 2009
    Vehicle
    1996 Camaro Z28, 1994 Trans Am GT, 1985/1996 Corvette CLONE
    Location
    Shillington, Pennsylvania, United States
    Posts
    42,242

    Default

    thats some interesting stuff.....


    Our BIG MOMENT @ the 2012 LTXshootout

    http://www.facebook.com/photo.php?v=521756391174175

    1996 Camaro Z28: 385ci, forged internals, p1sc/intercooled (11.x lbs) AFR eliminator 227s, TD shaft mount rockers, Edelbrock LT4 Air Gap intake, AS&M monoblade TB, 60# motron injectors, hypertech boost ref fpr,Lonnies dual 255s in tank, AC Delco OPTI from AMERICAN Powerhouse,, Buit T56, 9" with locker/3.90s, 35 spline axels, Pacesetter longtubes, custom Y-pipe into factory style magnaflow, SLP SFC and STB,etc, etc, etc $35k and counting....
    1996 M6 Camaro:602hp/54Xtq 1985/1996GS clone 207hp/286tq
    1994 Trans Am GT A4 (all stock)





  10. #10

    Default

    Some other tweaks which could be mentioned:

    LT4 compression is 10.8:1
    92-93 LT1 is batch fired injection vs. 94-97 being sequential
    Piston material is "Hyper"eutectic

    Nothing too important, just tweaks.
    94 Z28 LT1 M6 - ​SOLD

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •