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104563 Posts in 12237 Topics by 4718 Members
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4021  Camaro Research Group Discussion / Restoration / Re: 302 heads on: December 22, 2005, 12:49:51 PM
482 heads came with 1.72/1.5 valves and small ports and it would be a waste to put bigger valves in them due to the port restrictions. 462 heads came with both 1.94/1.5 and 2.02/1.6 valves (just as 186's did), but if you take a 462 or 186 head with 1.94's and open them up to take 2.02's and don't also make the unshrouding cut in the chamber wall adjacent to the intake valve, they'll flow less than they did with the 1.94's. Photo below of the factory unshrouding cut with factory 2.02 valves.

4022  Camaro Research Group Discussion / Decoding/Numbers / Re: 1969 z-11 casting numbers on: December 22, 2005, 12:34:05 PM
The "Cans" are called "shakers" or "cocktail shakers".  They help stiffen the body on convertibles as the roof is missing.

More to the point, they are vibration dampers - they don't stiffen the body, but they dampen torsional vibrations that occur as a result of the convertible's reduced body stiffness; you'll find two more in front, behind the headlights, and a bolted-on "X-brace" across the bottom of the transmission tunnel, used only on convertibles, that adds back some of the lost body stiffness.
4023  Camaro Research Group Discussion / Originality / Re: 1969 z/28 ignition coil (early z/28 october 1968) on: December 19, 2005, 07:14:50 PM
Be aware that the part numbers shown in the Assembly Manual are for the coil ASSEMBLY, which includes the coil and the mounting bracket (they came from Delco-Remy with the mounting bracket and clamp screw already installed); the coil used with the ZL2 hood had a different ASSEMBLY number because it came with a different mounting bracket (to clear the air cleaner base). I don't have the details handy, but I wouldn't be surprised if the coil itself was the same part number in both applications, with a different ASSEMBLY number due only to the brackets.
4024  Camaro Research Group Discussion / General Discussion / Re: Catalytic converters on 69' Camaro ! on: December 19, 2005, 06:53:23 PM
I live in AZ ,were a few years behind here. This state is not very car friendly , there are alot of nice cars here that don't hardly see the light of day because there are not very many car things to do. Cruising has been outlawed at all the old cruise spots. There are some cruis-ins but only a few and even they disapear from time to time.


Your governor just signed a bill into law about three months ago that exempts classic/collectible cars over 25-30 years old from the emission requirements; isn't it in effect yet?
4025  Camaro Research Group Discussion / General Discussion / Re: Catalytic converters on 69' Camaro ! on: December 18, 2005, 10:44:40 AM
What state do you live in that requires emission testing on a 36-year-old car? Even California doesn't require it on cars prior to 1976.
4026  Camaro Research Group Discussion / Originality / Re: seat belt color on: December 16, 2005, 12:43:10 PM
Same was true in '69 - my Z has the deluxe interior (Z87), but has standard (black) belts; deluxe belts were still a stand-alone option in '69, not tied to any other package.
4027  Camaro Research Group Discussion / Originality / Re: 69 X77 code Camaro Many fact questions. on: December 13, 2005, 01:15:51 PM
The spindle/steering knuckle, steering arm, hub, rotor, bearings, and caliper were received as a complete assembly; J52 power disc brake cars (except Z/28) used P/N 3954867-8 assemblies, and the Z/28's (which had J52 as a mandatory option) used P/N 3954869-70, which were identical except for shorter steering arms bolted to the knuckle.  Smiley
4028  Camaro Research Group Discussion / Restoration / Re: New Shell Vs Fixing mine on: December 11, 2005, 11:49:20 AM
<< Now I suppose GM had tin from the sixties around. I dont think so. If modern tin is so much better why did GM stamp new fenders out of full guage metal. Remember all asian tin is made from the ground up cars and appliances we send overseas. >>

It's not a matter of "having tin from the sixties around" - the print calls for a given sheet thickness, and that's what the draw, trim, flange, and pierce dies are designed to work with. Steel sheet is available in any thickness you specify, and there's nothing "special" about the sheet gauge used in the 60's; many different gauges of steel sheet are used in different parts of the car. Domestic steel isn't "virgin" either - normally it's about 40%-50% recycled material, and has been for decades; the alloying materials are what gives it specific properties.  Smiley
4029  Camaro Research Group Discussion / Originality / Re: front spoiler on: December 11, 2005, 11:36:46 AM
Steve - the photo below is typical of the 3847757-8; they're used all over the car; don't have a photo of the 7075.
4030  Camaro Research Group Discussion / Restoration / Re: Trunk Spatter Paint Color for 1st Gens. on: December 10, 2005, 10:46:05 AM
It varied a lot (imagine yourself leaning into the trunk with a spray gun with instructions NOT to get any on the body color edge of the gutter around the opening); my original Norwood 02D car has coverage right up to the top of the deck lid latch, and most of the inside of the tail panel is covered, along with the hinge boxes and hinge arms.  Smiley
4031  Camaro Research Group Discussion / Originality / Re: front spoiler on: December 09, 2005, 12:06:01 PM
The 7075 screw had a hex head.
4032  Camaro Research Group Discussion / Maintenance / Re: polyurethane on: December 08, 2005, 10:58:22 AM
They are if you don't mind more ride harshness and squeaking  Roll Eyes
4033  Camaro Research Group Discussion / Originality / Re: Another 1968 Z28 question - Cowl Hoods? on: December 07, 2005, 12:25:25 PM
Nope - it had a fiberglass cross-ram hood.  Smiley
4034  Camaro Research Group Discussion / Restoration / Re: L30/M20 firewall pic needed... on: December 06, 2005, 12:50:39 PM
Yup, that link works.  Smiley
4035  Camaro Research Group Discussion / Originality / Re: front spoiler on: December 06, 2005, 12:45:47 PM
I don't know the captured washer diameter on the screw offhand, but what you found sounds reasonable to me; AMK is about as close as you're going to find.
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