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97540 Posts in 11719 Topics by 4581 Members
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3826  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...
3827  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).
3828  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).
3829  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
3830  Camaro Research Group Discussion / Restoration / Re: Id a balancer & on: January 27, 2006, 10:20:01 PM
Second photo of the balancer didn't show up in the above post - here it is.
3831  Camaro Research Group Discussion / Restoration / Re: Id a balancer & on: January 27, 2006, 10:18:33 PM
Photo below of a correct original '69 DZ302 timing cover - the timing tab is welded to the cover. Photo also of a 302 8" balancer scribed to show both timing index marks - note that the timing index mark for '68 usage is directly in line with the crank keyway and a pulley bolt hole, and the '69 timing index line was moved counter-clockwise about ten degrees from the keyway positiion, which also generated a different timing cover and tab to match the relocation. Don't mix a '68 balancer and a '69 timing cover, or vice versa, or your timing tab marks will be out of whack.
3832  Camaro Research Group Discussion / Originality / Re: 186 question for John Z or whoever else knows:) on: January 27, 2006, 10:01:21 PM
The standard small-valve 186 heads DEFINITELY need the chamber wall adjacent to the intake valve cut to unshroud it when 2.02" valves are installed, just as the 461/462 heads require; if this isn't done, they'll flow less air with the 2.02's than they did with the 1.94's. I think the cutter used was on the order of 2.34" diameter, but I'm out of town this week and don't have access to my prints - any GOOD automotive machine shop will have the info, as most have done hundreds of heads this way. Photo below is of the 186 chamber with factory 2.02" valves - look closely at it and you can see the unshrouding cut adjacent to the intake valve.
3833  Camaro Research Group Discussion / General Discussion / Re: 1968 Z-28 on: January 27, 2006, 09:49:05 PM
The engine source, assembly date, and identifying suffix code is stamped on a machined pad on the front of the block immediately below the front of the passenger side cylinder head; the "MO" suffix will be the last two characters of the stamping, which will look like "V0306MO".
3834  Camaro Research Group Discussion / Maintenance / Re: Fuel Filter Relocation on: January 26, 2006, 10:29:49 AM
Hard to tell without looking at it - I'm sure Jerry can fix you up.
3835  Camaro Research Group Discussion / Originality / Re: factory options on: January 26, 2006, 10:26:19 AM
No Camaros were made in Canada - all of them sold in North America were made at Norwood or Van Nuys.
3836  Camaro Research Group Discussion / Originality / Re: More X77 stuff on: January 26, 2006, 10:23:37 AM
Those are X33 items (from the Z21 Style Trim Group) that someone has added.
3837  Camaro Research Group Discussion / Maintenance / Re: Fuel Filter Relocation on: January 25, 2006, 09:58:53 PM
Most professional Q-Jet rebuilders can repair the fuel inlet threads with a special Helicoil; DON'T use the parts store repair kit that's self-threading - that'll simply destroy the casting. Not a good idea to put a filter upstream of the pump - that adds restriction to what is already a weak vacuum on the "pull" side of the fuel pump.
3838  Camaro Research Group Discussion / Maintenance / Re: Rebuilt motor tuneup on: January 25, 2006, 09:54:23 PM
Does the distributor have vacuum advance? If so, initial timing is set with it disconnected and plugged. If you don't hear any valvetrain sounds, the valves aren't lashed correctly - if you drive it like that, you'll burn the valves. Click on the box at the top of the page labeled "CRG Reports" and go to the Research Report on adjusting valves with the "30-30" cam. Most 302's only pull about 9"-10" Hg. vacuum at a 900 rpm idle - it's characteristic of that cam.
3839  Camaro Research Group Discussion / Restoration / Re: Repop spiral shock absorbers on: January 25, 2006, 09:45:35 PM
Thanks Kurt. I didn't know they were not for use on the road. Any comments on having used originals rebuilt by Apple Hydraulics?

Never heard of anyone rebulding monotube shocks, but I know Apple rebuilds the old lever-arm Armstrong and Houdialle shocks - different animals.
3840  Camaro Research Group Discussion / General Discussion / Re: 2657 block on: January 25, 2006, 09:36:39 PM
I know it was only used in Corvettes in 1967 - I'm out of town this week and don't have my references handy for any other usages.
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