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103779 Posts in 12188 Topics by 4700 Members
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3931  Camaro Research Group Discussion / Originality / Re: What is the color of the door jamb strikers? on: February 02, 2006, 02:16:16 PM
They were installed in the Body Shop (to fit the doors), and were later painted body color; looks messy, but that's the way it was done.
3932  Camaro Research Group Discussion / Originality / Re: 1969 Z brake booster fitting on: February 02, 2006, 02:13:48 PM
Yes - the correct one has only the one tubular port for the brake booster hose (Rick's INT-3); I use the one with the booster hose port and a vacuum hose port (Rick's INT-4), as it provides a handy connection for a vacuum gauge for setting idle mixture - I just keep a rubber cap on it (see photo).
3933  Camaro Research Group Discussion / Restoration / Re: Lug wrench color? on: February 01, 2006, 11:11:34 AM
My original is black, and still has one of the two wide rubber bands attaching it to the jack column.
3934  Camaro Research Group Discussion / Restoration / Re: Paint Formulation on: February 01, 2006, 11:10:19 AM
Nope - all GM plants used DuPont paint and chemicals (cleaners, phosphate, primers, sealers, and topcoats); the DuPont family was one of the largest individual GM stockholders, and had a "lock" on all of GM's paint business in those days.
3935  Camaro Research Group Discussion / Originality / Re: 69 deluxe door panel markings. on: February 01, 2006, 11:07:25 AM
Probably has nothing to do with X33, as that only denoted exterior trim items; more likely that it's an assembly sequence number.
3936  Camaro Research Group Discussion / Maintenance / Re: Rebuilt motor tuneup on: January 31, 2006, 10:48:17 AM
Doubt if the plugs have anything to do with it - I run AC R45S plugs in all my small-blocks for normal driving - 44's tend to foul somewhat in around-town driving, and 43's are WAY too cold for normal driving.
3937  Camaro Research Group Discussion / Maintenance / Re: Rebuilt motor tuneup on: January 30, 2006, 09:05:35 PM
If the two marks from your piston-stop exercise are both exactly the same distance from the "0" mark on the timing tab, your existing marks are OK. Advancing the cam 4* shouldn't have any significant effect on ignition timing - will just move the torque curve down a little.

I don't recall how the Unilite distributors manage centrifugal advance - haven't had one for many years. I run my '69Z with 8*-10* initial advance, 26* in the distributor, all in by 2800 (for total timing of 34*-36*), and a NAPA/Echlin #VC-1810 vacuum advance unit that adds 15*, and is fully deployed at 8" Hg. and connected to full manifold vacuum.
3938  Camaro Research Group Discussion / Maintenance / Re: What octane should I put in my '68 ?? on: January 30, 2006, 08:54:47 PM
If you see normal vacuum at idle with a gauge at the carb nipple, that's a manifold vacuum source; if you don't see vacuum there at idle but you do when you open the throttle, it's a "ported" vacuum source. If you can't find a manifold vacuum source on the carb, you can use the fitting on the intake behind the carb.

Q-Jets don't have a "venturi vacuum" system - that's only found on Holleys with vacuum secondaries. Venturi vacuum" is created by mass airflow past a pickup tube in the main venturi, and is unrelated to manifold vacuum.
3939  Camaro Research Group Discussion / General Discussion / Re: 2657 block on: January 30, 2006, 08:44:29 PM
Does anyone know for sure when the 3892657 block was produced?



'64-'67; it was the last small-journal 327 block.
3940  Camaro Research Group Discussion / General Discussion / Re: 1968 Z-28 on: January 30, 2006, 08:40:25 PM
O.K. I finally got to check the block that is rumored to be from this car. Here are the #'s from the block, the cowl tag and the vin.

cowl: 06B H257
 ST 68-12437 LOS 42128 BODY

V.I.N. 124378L343505
ENGINE: V0423MO 18N425549

Could this be the original block??

No, that engine was originally installed in a '68 Norwood car, VIN #425549; your car was built at Van Nuys.
3941  Camaro Research Group Discussion / Maintenance / Re: Rebuilt motor tuneup on: January 29, 2006, 12:04:48 PM
I'm out of town this week in Florida, so I don't have my "30-30" crank angle-cam lift diagrams handy; I'd find true TDC, re-mark the balancer, then adjust the valves.
3942  Camaro Research Group Discussion / Originality / Re: 68 AM FM Stereo on: January 29, 2006, 12:00:43 PM
Here's that same setup in the Estes '68 Z/28 convertible...
3943  Camaro Research Group Discussion / Mild Modifications / Re: Possible Axle swap on: January 27, 2006, 10:35:46 PM
4.11's SUCK for anything but cruising around town - you'll see 3900 rpm at 70 mph on the highway. Furthermore, if you buy it and later decide to gear it down to 3.55 or 3.36, you'll have to shell out $400 for a new Series 3 Posi unit, PLUS the cost of the new gears (the 4.11 uses a Series 4 carrier).
3944  Camaro Research Group Discussion / Mild Modifications / Re: Aftermarket wheels for my '68 RS/SS w 4 piston calipers? on: January 27, 2006, 10:32:43 PM
Just call the manufacturer of the wheels you're interested in and ask them if they'll clear '67 Camaro calipers (with prepaid return shipping if they don't).
3945  Camaro Research Group Discussion / Maintenance / Re: Rebuilt motor tuneup on: January 27, 2006, 10:28:11 PM
If you have roller rockers with a true 1.5:1 ratio, change the recommendation in the Research Report for lashing the valves for your car to .030" cold (the .026" cold lash recommendation is only for use with stock stamped rockers, which are actually only 1.37:1 at initial contact). As noted above, get a piston stop tool and verify ACTUAL TDC vs. what your balancer and timing tab show, and re-mark the balancer with a new timing index line aligned with "0" if necessary. If I had a dollar for every mis-matched balancer and timing cover I've seen in the last 20 years, I could afford to buy at Barrett-Jackson.  Grin
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