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97194 Posts in 11690 Topics by 4578 Members
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61  Camaro Research Group Discussion / General Discussion / Re: How big of a tire will fit on the front of a 69 on: February 03, 2014, 10:52:06 AM
My all-original unrestored '69Z came to me with BFG 235/60-15 T/A's on the stock YH rallys, and the fronts rubbed at 12 o'clock on the bright wheel opening moldings and bolts. I swapped the whole set out for 215/65 T/A's (same size as the original E70-15's), and the rubbing is history.
62  Camaro Research Group Discussion / General Discussion / Re: What we did during the Deep Freeze and Great Southern Blizzard of 2014 on: February 03, 2014, 10:41:09 AM
Here's what WE did last week (snowiest month in metro Detroit history since they started keeping records) - shot these yesterday morning.   Shocked
63  Camaro Research Group Discussion / Decoding/Numbers / Re: Original 67 327 ? on: January 31, 2014, 03:07:05 PM
I'm wondering then how any 327 of that year is labeled as numbers matching if there is no absolute proof.

Yup, for '67 the closest thing to absolute proof on engines that didn't have a partial VIN stamp would be that the engine assembly stamp would match the POP.

Paul

And that doesn't positively nail it, as the engine plant probably built several hundred of that particular engine suffix that day, all of which will have exactly the same engine plant stamp.
64  Camaro Research Group Discussion / Decoding/Numbers / Re: Original 67 327 ? on: January 31, 2014, 03:03:48 PM
I'm wondering then how any 327 of that year is labeled as numbers matching if there is no absolute proof.

"Numbers Matching" has as many meanings as there are sellers, but the only one that matters is "born with"; on a '67 327, all you can really PROVE is "date-correct" without a VIN stamp.
65  Camaro Research Group Discussion / General Discussion / Re: How long are you guys running your radials tires on: January 31, 2014, 02:49:40 PM
Normally, the worst thing that can happen to a tire is a tread separation, which is almost always a catastrophic failure, particularly at freeway speeds, which can result in all manner of really bad outcomes. Tread separation is a common failure mode on "S" speed-rated tires, which are on 99.99% of all cars on the road today (except new Corvettes, Vipers, Ferraris, etc.).

The problem is that "S"-rated (112mph) tires don't have a nylon cap belt in the carcass, on top of the radial or bias plies, which keeps the tire from disintegrating if the tread separates; that cap belt is only in tires that are speed-rated "H" (130mph) or above, and they're significantly more expensive true performance tires due to the premium materials used in their construction.

BFG Radial T/A's are NOT "performance" tires - they're ordinary garden-variety "S"-rated tires (no cap belts), better described as "performance-appearing" tires. Keep that in mind the next time someone tells you that their T/A's are "performance" tires - they're NOT.

Just one more thing to consider when deciding whether or not to replace your old tires - unless you have "H" or "V"-rated tires (which have cap belts), ten years is probably a good time to replace them.
66  Camaro Research Group Discussion / Decoding/Numbers / Re: Ignition Coils on: January 26, 2014, 11:25:03 AM
Here's the Delco Remy catalog pages from Oct. '68. Note the distributor listings are correct, as are the point sets and other parts, but is only lists 2 coils to cover the entire engine offering. Interesting -

Remember that those Delco wholesale/retail catalogs refer only to the part number of the coil itself; the part number shown in the Assembly Manual is for the coil AND ITS MOUNTING BRACKET, a "coil assembly".
67  Camaro Research Group Discussion / General Discussion / Re: Rosewood Wheel on Ebay on: January 26, 2014, 11:14:16 AM
JohnZ:  Did the McKinnon plant build 302's for Z28s? Smiley  or were high performance small blocks 'all Flint' as I've always believed?

McKinnon didn't build any solid-lifter small-block engines - they all came out of Flint V-8.
68  Camaro Research Group Discussion / General Discussion / Re: Crankcase Ventilation question on: January 26, 2014, 10:59:30 AM
I'm trying to bring my 67 RS with an original 327/210 back to as close to stock as possible.  Found the correct dated 2 barrel manifold and original air cleaner, and have a line on a rebuilt Rochester dual jet, but can't seem to find out anywhere why some cars were set up with a positive system (vented oil fill cap/breather) and others a closed positive, with the pcv valve attached to the fill tube. 

Do you have an Assembly Manual? The standard (non-California) crankcase vent system is shown in UPC 6, sheet C5 (adapter elbow, hose, PCV valve, and carb fitting, with vented oil fill cap), and the optional (mandatory in California) RPO K24 system is shown in section K24, sheet A2. You want the standard setup.
69  Camaro Research Group Discussion / General Discussion / Re: console gauge lights on: January 25, 2014, 12:48:03 PM
With the copper line I ran to my oil press gauge....
Yikes. We lost one test car when it burned to the ground due to a copper line - could still see the marks on the highway for years later. Melted the wheels off of it.
I personally almost burned up a test car that had a copper oil line.
I'd never use a copper oil or fuel line.....

Correct!  Copper tubing work-hardens with vibration, then fatigue-cracks and fails (and it's used in a lot of aftermarket kits); that's why GM used copper-PLATED steel oil pressure lines before they changed to nylon - they look like copper, but they're steel.
70  Camaro Research Group Discussion / General Discussion / Re: Rosewood Wheel on Ebay on: January 25, 2014, 12:37:55 PM
John, was your car originally Canadian-delivered?

Yes, it was - to Howard Elliott Motors in Hamilton, Ontario.
71  Camaro Research Group Discussion / Maintenance / Re: 68 th400 fluid capacity with dry torque converter on: January 23, 2014, 11:41:30 AM
The Chassis Service Manual says that an overhauled THM400 and empty converter takes 19 pints of fluid.
72  Camaro Research Group Discussion / Decoding/Numbers / Re: engine block 3782870 9x3157 on: January 23, 2014, 11:18:44 AM
Thanks gentlemen!
 Back in '65, were Canadian blocks suffix-coded any differently than U.S. blocks?

If you mean McKinnon-built engines, no - the only difference was the first character (it was a "K" instead of "F" or "T").
73  Camaro Research Group Discussion / General Discussion / Re: Rosewood Wheel on Ebay on: January 23, 2014, 11:09:51 AM
Here's my original rosewood wheel.  Smiley
74  Camaro Research Group Discussion / Decoding/Numbers / Re: engine block 3782870 9x3157 on: January 22, 2014, 04:24:24 PM
327 block, date looks like B4  5,  but suffix code 9x 3157 ? ?
Thanks!
T.

9X 3157 sounds like a typical rebuilder's code; definitely not a factory code.
75  Camaro Research Group Discussion / Decoding/Numbers / Re: Fuel pump codes on: January 22, 2014, 04:22:35 PM
So what was on the fuel pump outlet at the engine plant when it was fired? A block off plate of some sort?

Nothing - it only ran for about 20-30 seconds, and there's no oil under pressure in that area.
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