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111302 Posts in 12818 Topics by 4913 Members
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226  Camaro Research Group Discussion / Decoding/Numbers / Re: vin numbers on: April 23, 2014, 09:04:35 PM
Heater core box/cover ? Pic of that (if it's an original) would point at small or big block depending on where the hose outlets are located -

I agree with the color combo - Le Mans is my favorite 68/9 color (for all you H.O. gurus !)

Regards -
227  Camaro Research Group Discussion / General Discussion / Re: engine assembly on: April 23, 2014, 08:54:05 PM
'68 engine assembly is about as straightforward as you can get - with the exception of the windage tray, it assembles just like any other early small block when utilizing the correct parts. Speaking of parts, you can use esteemed CGR members Alan Colvin's book Chevrolet by the Numbers, and Jerry MacNeish's 1967-68 Defiinitive Facts books and gorge yourself on part numbers. Carb to pan, intake to exhaust, everything you need to source and search for are spelled out in good fashion. Part numbers and visual references abound.

No, I'm not a publisher, nor do I get royalties from either, but I have read and reread these and others until I fell I have a pretty good grasp of what's needed to put one together as original. I have built SB Chevys since age 16 (44 years), and so I did my latest, '68 MO, waiting to be painted, topped off and installed. Top to bottom, you can still put one of these together, correctly, on a budget.
228  Camaro Research Group Discussion / Decoding/Numbers / Re: vin numbers on: April 21, 2014, 08:51:23 PM
Since the '68's are so hard to document (unlike the 7's and 9's, no cowl tag coded info to go by), look at rear end numbers (passenger side axle tube, front side), 10 or 12 bolt, number of leaf springs, auto or std. trans, size and number of gas lines, presence or absence of right side tailpipe mounting bracket in the rear wheel opening. Barring original paperwork or documentation, there is no cut and dried (or exact) way to pinpoint what this car is, or was.

Who knows, maybe it's a Yenko, or a Nickey, or a Dana, or a Baldwin Motion ? That's the fun of it, finding and researching. Maybe it will be one of the really rare ones. In any case, good luck and good hunting. Let us know what you find out, or discover. Most all of us will be glad to try and sort it out.

Regards - 
229  Camaro Research Group Discussion / General Discussion / Re: Bad Luck is Better Than No Luck; Right? on: April 21, 2014, 08:30:12 PM
Makes total sense. Easy thing to confuse BB pistons and reliefs - one version even uses two different part numbers, one for each side of the block (I found this during a search for the L78 proper piston part numbers). Betcha the builder never checked the valve to piston clearance during the build - you're probably lucky it didn't mangle it worse. Sounds like a cam change would be in the works -

Hate it happened, but glad it did it now rather than strand you somewhere, or grenade it -

230  Camaro Research Group Discussion / General Discussion / Re: Bad Luck is Better Than No Luck; Right? on: April 21, 2014, 04:52:06 PM
Better than sitting in a garage for 34 years - like one I know of -
231  Camaro Research Group Discussion / Decoding/Numbers / Re: Rochester Quad Verify? on: April 21, 2014, 04:48:56 PM
Good one to have - 7037213 is for 327/275 hp , standard trans, A.I.R, also for 350/295 hp, standard trans, A.I.R. A more common version is probably the 7027213, same engine power combinations, S/T, W/O A.I.R.

2726 is Julian date for the 272nd day of '66, you are correct -

232  Camaro Research Group Discussion / General Discussion / Re: Bad Luck is Better Than No Luck; Right? on: April 21, 2014, 04:36:40 PM
Fair enough - let us know. Hate to hear you had a momentary setback - I'm anxious to see this one on the road (as I know you are).
233  Camaro Research Group Discussion / General Discussion / Re: Bad Luck is Better Than No Luck; Right? on: April 21, 2014, 04:28:25 PM
The remark earlier about the weak spring installation might be a good crosscheck to see just how much lift you can get away with. Piston at TDC, depress the valve until it makes contact, and measure. What ratio are the rockers ? Cam could be stout enough (and I remember the idle) to play hell with the pushrods if the valves come anywhere close to the pistons.

At least it's apparently just pushrods - I've seen BB internals when you hydraulic a piston - rods look like corkscrews, or grenade through the motor.

Regards -  
234  Camaro Research Group Discussion / General Discussion / Re: Pic posting problems ? on: April 21, 2014, 04:10:25 PM
Figured it out - I used my iPhone, a higher resolution camera. I almost always use my older camera, which is easy to get under the 200kb, 4 per post max. Sorry to squawk before I thought better about it -

Regards -
235  Camaro Research Group Discussion / General Discussion / Re: Bad Luck is Better Than No Luck; Right? on: April 21, 2014, 04:04:15 PM

What compression ratio and piston are you running ? Any specs left by the builder ? I remember hearing this engine run on a couple of occasions - sounded great then, but maybe when you actually got to drive it, the higher RPM got some valves into the pistons ?

I doubt oil starvation would have taken them down this quick - more likely impact. Could be wrong piston/valve relief for the cam lift -

236  Camaro Research Group Discussion / General Discussion / Pic posting problems ? on: April 20, 2014, 10:19:44 PM
I have posted many pics on this forum, but I have never run into this before - after repeated tries to post a 476 kb pic, the error message tells me the max file size is 200 kb, which I don't think has changed from 500 kb. What gives ? Antone else had the same problem ?
237  Camaro Research Group Discussion / Originality / Re: Amazing 69 Z/28 Survivor on: April 20, 2014, 02:58:40 PM
Steve, I bet you can't wait to have it at your show! What a nice example of a car that happen to benefit from just the right circumstances.
It is funny to me how many people set out to preserve a car back in the day, and how only a small handful actually came out the other side in nice condition. I remember a few years back there was a raffle for a like 50's plymouth/chrysler that was entombed when brand new in a cinderblock mausoleum, and then at the 50 year anniversary of the town they were going to announce the winner who would have entered the raffle when the car was locked away new. Well long story short, the cinder block tomb only trapped moisture inside and the car that was suppose to have been  well preserved looked like it had been buried in a river.

I remember that one - greatly disappointed a lot of people, including me. I can't remember what magazine it was featured in (or at least showed the pics of the rusted hulk).
238  Camaro Research Group Discussion / Originality / Re: Amazing 69 Z/28 Survivor on: April 20, 2014, 10:59:10 AM
Survivor? It didn't even survive the factory paint line. It came out H.O. (lol lust kidding it is astounding !!!)

I agree - must be a conspiracy.

Unreal find -
239  Camaro Research Group Discussion / Decoding/Numbers / Re: 1968 Z/28 Block - Trans - Rear Numbers... Original Stamps? on: April 20, 2014, 10:54:54 AM
Yes, who knows. I see that last digit is very light. Looks like a "9" ? How can you hit them all super deep and then have one that barely shows. What the hell!!  Huh Huh   I need a few more entries here, and some more explaining before I tell my buddy weather or not to pull the trigger on this car... Danny

Nature of a gang stamp. Individual stamp shanks tend to deform over repeated use, plus the holder itself allows some movement of the individual stamps - they are usually held in place with a key or wire, and will shift slightly that allows some irregularity in the finished stamp. I'm pretty convinced the stamping looks authentic, characters look good, alignment is within the range of normality in my estimation; the only question mark I have is the suggestion of decking. It could very well be that if the rest of the block surface has been milled, then the shop that decked it did the right thing and kept away from the pad stamping. My opinion -

Regards -
240  Orphans - documentation or VIN-stamped drivetrains - in search of the original cars / 1968 - Orphans / 18N448650 engine block on: April 19, 2014, 01:53:25 PM
Anyone seen 18N448650 ? In the database ? I have your original block on hand -
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