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97527 Posts in 11718 Topics by 4581 Members
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3661  Camaro Research Group Discussion / Originality / Re: Engine casting date vs build date on: May 09, 2006, 01:36:20 PM
Mike, I was at the Chevrolet Pilot Line (on Van Slyke just south of Atherton, next to Flint Assembly) from '66-'69; they bulldozed it two years ago.
3662  Camaro Research Group Discussion / Originality / Re: 69 Camaro big block oil line for gauges on: May 09, 2006, 01:32:31 PM
The pipe in the photo is for a Corvette, which used steel or copper-plated steel; the same fitting design was used with metal or nylon tubing (the nylon tubing had a tiny brass insert in the end that kept it from collapsing when the fitting was tightened).  Paragon's site is www.corvette-paragon.com .
3663  Camaro Research Group Discussion / Originality / Re: Light monitoring system rpo U46 on: May 08, 2006, 10:57:18 AM
The routing, connections, and holes for the rear portion of the system are all shown in the Assembly Manual in section U46, Sheet A3 and A4.
3664  Camaro Research Group Discussion / Originality / Re: DZ harmonic balancer VS LT1 harmonic balancer on: May 08, 2006, 10:54:13 AM
The DZ balancer has the timing index line on the inertia ring about 10* counter-clockwise from a straight line extended from the hub keyway slot through the center of a pulley bolt hole, as the '69 DZ used the new long water pump accessory drive; '68 and earlier balancers had the timing index line directly on that line, as they used the earlier short water pump accessory drive system. An LT-1 balancer should also have the timing index line located in exactly the same place as the DZ balancer, as it also used the long water pump layout.
3665  Camaro Research Group Discussion / Originality / Re: 69 Camaro big block oil line for gauges on: May 08, 2006, 10:46:18 AM
The fittings at the BB engine end shown in the photos above are aftermarket compression sleeve fittings. The original fitting that was screwed into the brass elbow and the mating fitting that went on the oil pipe are shown in the photo below; GM used their own proprietary fitting design that didn't use a separate compression sleeve - it used specially tapered male and female fittings that captured and sealed the pipe when the fitting was tightened. Paragon has the GM female fitting that screws into the elbow (their #34), and the matching GM male fitting that goes on the pipe is supplied with their oil line kits - they may sell the fittings separately.
3666  Camaro Research Group Discussion / Mild Modifications / Re: ignition system on: May 07, 2006, 12:24:03 PM
Does anybody have any comments/experience on the" breakerless ignition convertion" that Rick's sells (ep-714)?
keep your original ditributor without the breakers.

That's the "Breakerless SE" conversion manufactured by M&H Fabricators; lots of Corvette guys use it, as it only uses one black wire to the coil and thus appears stock during judging. Haven't heard of any problems with it from the Corvette users.
3667  Camaro Research Group Discussion / Originality / Re: Light monitoring system rpo U46 on: May 07, 2006, 12:14:55 PM
Which lights were monitored by the rear pod, seems the two outer red lens fibers are for the tail/stop lights, not sure about the center one?

See my post above - only the outer bulb was monitored.
3668  Camaro Research Group Discussion / Originality / Re: Engine casting date vs build date on: May 07, 2006, 12:13:14 PM
Yes, I've seen a couple, and NCRS has documented several over the years. Flint blocks were cast in Saginaw, and it was possible for a block to be cast early in the 1st shift and show up at Flint Engine on 2nd shift for machining and assembly. Would also have been possible at Tonawanda, as the foundry was right next door to the engine plant, on the same site.

The "norm" was more like 2-3 days to a week, but it was "possible".
3669  Camaro Research Group Discussion / Decoding/Numbers / Re: Impossible to document? on: May 07, 2006, 12:07:47 PM
GM of Canada Vintage Desk - George Zapora, (905) 644-3387.
3670  Camaro Research Group Discussion / Originality / Re: 68 396 radiator cap on: May 06, 2006, 09:50:47 AM
There were MANY different configurations of the RC-15 cap in production and service, and there are at least four different reproductions on the market; there's an excellent research article on the history of the RC-15 cap in the Winter, 2006 issue of the NCRS "Corvette Restorer" magazine.  Smiley
3671  Camaro Research Group Discussion / Maintenance / Re: spark plugs on: May 04, 2006, 01:18:40 PM
Yup, .035" gap.
3672  Camaro Research Group Discussion / Originality / Re: Light monitoring system rpo U46 on: May 04, 2006, 01:13:22 PM
Housings on both front fenders and in the lower center of the rear window - headlights and park/turn lamps were monitored in the front, and outboard taillamps and license light were monitored in the rear.
3673  Camaro Research Group Discussion / Maintenance / Re: spark plugs on: May 03, 2006, 10:27:49 AM
I run AC R45S plugs in all my small-blocks, with and without factory domed pistons; good all-around plug for normal driving, no fouling in my '69 Z/28, which would foul 44's occasionally around town. Autolite 86's also work well for the same normal operation.
3674  Camaro Research Group Discussion / Originality / Re: 68 396 hood ornaments and side marker bezel on: May 03, 2006, 10:22:10 AM
Original '69 side marker lamp bezels had no paint, and no groove; they were all chrome, with a raised rib around the lens opening in the bezel.
3675  Camaro Research Group Discussion / Originality / Re: 68 396 radiator cap on: May 03, 2006, 10:19:19 AM
Hi, was the original radiator cap for 68 396 350hp the short eared or long eared type?
Were they 15 psi?
Any pics appreciated

The caps with the short ears are later GM service replacements.
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