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  1. Replies
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    Question: The K66 pulse amplifier was mounted on the...

    The K66 pulse amplifier was mounted on the forward side of the inner fender on the driver's side, behind the headlamp assembly, as shown in Section K66 in the Assembly Manual; 327 or 427 made no...
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    Question: Simple answer - the L71 engine was only available...

    Simple answer - the L71 engine was only available with the M21 close-ratio 4-speed transmission. The M20 wide-ratio transmission was available with the 390hp L36 and the 400hp L68, but not with the...
  3. Do you have any idea how old the rubber parts...

    Do you have any idea how old the rubber parts were (how long they had been "on the shelf")? Unless they were over 30 years old, they should have been compatible with DOT5 fluid. :thumb
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    Chances are your best bet to accomplish what...

    Chances are your best bet to accomplish what you're after is standard production (or Monroe/Gabriel/Delco equivalent replacement) shocks, springs, and OEM rubber bushings. All the aftermarket stuff...
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    From left: Pennant Blue = '54 or '55 Yellow...

    From left:

    Pennant Blue = '54 or '55

    Yellow = '54 or '55

    Arctic Blue = '56 or '57

    Cascade Green = '56 or '57
  6. Thread: Oil question

    by JohnZ
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    225

    With your vintage engine, the Mobil 1 synthetic...

    With your vintage engine, the Mobil 1 synthetic oil does nothing for you except increase your oil change costs. What's important for your engine is to ensure an adequate level of ZDDP in the oil to...
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    Question: I worked at St. Louis-Corvette in 1967-68, and...

    I worked at St. Louis-Corvette in 1967-68, and there was no fire - the records simply weren't kept - GM was in the business of building cars, not storing records. Assembly plants have very little...
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    Help! I'll defer to one of the '54 experts when one...

    I'll defer to one of the '54 experts when one chimes in, but it's my understanding that ALL '54 Corvette engines were suffixed with "F54YG", AND they were all built at the Flint Motor Plant (thus the...
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    The leaf spring was 2-1/4" wide from '63-'77, and...

    The leaf spring was 2-1/4" wide from '63-'77, and changed to 2-1/2" for '78-'79. The rear cover casting number didn't change - what DID change was the diameter of the four bolts retaining the spring...
  10. Thread: Ac 44 plug.

    by JohnZ
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    310

    I'd avoid the "S" (extended tip) with your L-79;...

    I'd avoid the "S" (extended tip) with your L-79; there have been reports of the tip contacting the pistons on the SHP engines with domed pistons.

    :beer
  11. Thread: Rear jack point

    by JohnZ
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    The strongest (and most stable) floor jacking...

    The strongest (and most stable) floor jacking point is the spring retainer plate on the bottom of the differential. :thumb

    :beer
  12. Question: You'll probably get a better/faster answer if you...

    You'll probably get a better/faster answer if you post in the C5 Forum - this forum is for C1/C2, decades before CD's were invented. ;)
  13. Thread: Fuel pump?

    by JohnZ
    Replies
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    449

    When I had C1's, I made up a special plug for the...

    When I had C1's, I made up a special plug for the male fitting on the pump end of the main fuel line on the frame; it's standard Weatherhead fittings - it's a 3/8" SAE double female flare union with...
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    Question: "Highly Intolerant" = broken fiberglass = new...

    "Highly Intolerant" = broken fiberglass = new paint = $$$

    :beer
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    Question: No, it's not - the rear underbody and...

    No, it's not - the rear underbody and wheelhouses/quarter panels are the same, common to both body styles; there is no difference. Folks forget that the midyear body and chassis were designed in 1960...
  16. Question: I've never seen anything officially published by...

    I've never seen anything officially published by Chevrolet, but one of the dyno techs at Tonawanda said the L-88's and ZL-1's consistently showed over 500hp, and the guys who designed/developed those...
  17. Thread: c2 power brakes/

    by JohnZ
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    Fortunately, 1967 was the ONLY year where the...

    Fortunately, 1967 was the ONLY year where the manual and power brake systems both used the SAME master cylinder (casting #5455509, stamped "DC" on the machined pad at the front), so you can use the...
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    Tracing a car's history is simply good...

    Tracing a car's history is simply good old-fashioned detective work, starting with the person you bought the car from and working backwards; the NCRS can tell you who the original selling dealer was,...
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    Question: The 1964 (only) had two additional inboard body...

    The 1964 (only) had two additional inboard body mounts per side, forward of the luggage stop panel; they were eliminated for 1965. Shown in the Assembly Manual, section 1-Mounting, sheet 2.00. :thumb...
  20. Question: Yes, they did - they just picked a different...

    Yes, they did - they just picked a different point on the curve as the rating point - I have the Chevrolet Engineering Change that revised the advertised hp and released new air cleaner stickers on...
  21. Question: I'll chime in here too. With manual steering set...

    I'll chime in here too. With manual steering set on the faster ratio, the steering effort isn't appreciably different; those of us who learned to drive back in the day when power steering was rare...
  22. Question: I did too - I was the Senior Process Engineer at...

    I did too - I was the Senior Process Engineer at the Chevrolet Pilot Line and GM Assembly Research Center from 1966-1969, then moved on to Lordstown. :thumb

    :beer
  23. Thread: 58 paint

    by JohnZ
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    414

    Question: Corvettes don't have gelcoat, but boats do. What...

    Corvettes don't have gelcoat, but boats do. What you're seeing is contamination of the fiberglass from absorbing standard brake fluid, which occurred prior to changing it over to DOT5 silicone fluid....
  24. Thread: Transmission oil

    by JohnZ
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    585

    GL-5 won't hurt it a bit. :) :beer

    GL-5 won't hurt it a bit. :)

    :beer
  25. Question: VIN numbers (E53F001001 - E53F001300) make it...

    VIN numbers (E53F001001 - E53F001300) make it pretty clear that it's 300.

    :beer
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