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102481 Posts in 12091 Topics by 4669 Members
Latest Member: paulmanta
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316  Camaro Research Group Discussion / Restoration / Re: 3917291 sbc heads 2.02's or 1.94's on: January 24, 2010, 12:10:19 AM
The castings are the same.  The combustion chamber on the 2.02 heads have some machine work done to unshroud the intake valve.  It is fairly easy to have the 1.94 heads machined for the 2.02 valves and be correct.  A lot of the time the original 2.02 valve heads have had a valve job or more and the seats are deeper in the head so a rebuilt 1.94 is more desireable.
X2 on this idea....I replaced the heads on my Z28 with a good used set of 291's with the 1.94/1.50 valves.....even found the right cast dates.  Had the machinist  replace the old valves with new 2.02/1.60 valves and had him to unshroud the intakes.  Those heads looked like new ones when I got them back.
317  Camaro Research Group Discussion / Restoration / Re: Lower alternator bracket question on: January 22, 2010, 10:35:19 PM
My original 1968 Z28 valve covers are 2.5" tall with the cover laying flat on workbench and no gasket.  Measure your valve covers and see what the read.
318  Camaro Research Group Discussion / Originality / Re: 1968 Front Spoiler! on: January 22, 2010, 05:23:29 PM
I'll go back and search again....thanks for advising me.
319  Camaro Research Group Discussion / Restoration / Re: Lower alternator bracket question on: January 22, 2010, 01:01:17 PM
Got any pictures of the lower bracket? How about pics of the alternator also.
320  Camaro Research Group Discussion / Originality / Re: 1968 Front Spoiler! on: January 21, 2010, 09:22:55 PM
Thanks.....had already read that one but it didn't mention anything about the production dates.  Just want to make sure that I get the one that would apply to my car build date.....or if it makes no difference then I'll get the later model.  Looks like the later one is heavier and it uses the braces so that it would probably hold up better....and it is usually cheaper.

Thanks again....
321  Camaro Research Group Discussion / Originality / 1968 Front Spoiler! on: January 20, 2010, 11:29:53 PM
I know there were two front spoilers for the 1968, ( 3916673-The first one and I understand that it was just screwed to the valance panel ) and ( 3943249-The second one and I understand that it was supposed to use the braces 3943253 & 3943251 ).  My 1968 Z28, 07C, has the spoiler option ( D80) but didn't have the spoiler when I bought it,  but upon removing the valance panel from the front end I noticed that the screws that mounted the spoiler and a small piece of the plastic under the screws from the old spoiler remained.  I did not find any braces attached so I am presuming that it either had the first design spoiler or it had the second design and when the original spoiler departed that the first owner removed the braces.  I am about to purchase a new spoiler and  I want to get the right one that matches the  date of the car.

So....does anyone know when the first design was deleted and the second design was added to the production line, or even if the second design was ever added to the production line and was only available as a service part?  Also, are both of the spoilers classified as original to the car or is the first one, only, original to the car?

Any pictures showing both of the spoilers would be greatly appreciated.....just to make sure I get the right one.

Thanks in advance for any advice given....
322  Camaro Research Group Discussion / Restoration / Re: 30 30 cam on: January 19, 2010, 10:02:36 PM
If you are referring to a cam that is exactly equivalent to the old 30/30......I bought the Comp Cams kit #CL12-107-3.  This is a kit that includes the cam and lifters.  It has been highly recommended in the past.
323  Camaro Research Group Discussion / Originality / Re: 1967 302 fuel pump on: January 19, 2010, 05:08:22 PM
is the correct fuel pump # 40503 for the 67 302 ? Or is there a different one. Huh

Ron -

My '69 Chevrolet P&A list type 40524 (GM part #6416886) as the correct fuel pump for the '67 302.

324  Camaro Research Group Discussion / Restoration / Re: 302 Cu. In. Crate Motor Availability? on: December 26, 2009, 11:14:57 AM
Easy to build....Yes.   My main difficulty was finding the right pistons.
325  Camaro Research Group Discussion / General Discussion / Re: Why is there some Z28's with 3908326 Rear Proportioning Valves and Some without on: December 23, 2009, 01:01:50 PM
No valve.....see signature for vehicle.
326  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 open element air cleaner lid on: November 24, 2009, 12:13:29 AM
You sure that's the right thread?  All I say was tires and a spoiler.
Try page #58....that is where I found the air cleaners.
327  Camaro Research Group Discussion / Restoration / Re: crank pulley bolts on: November 17, 2009, 08:26:55 PM
Paul......they should look like this

328  Camaro Research Group Discussion / Originality / Re: valve cover grommets 350 and 302 motors on: October 18, 2009, 10:45:19 AM
Here is 68ZProjects link that shows his 68Z and my 68Z looks the same as his and the are not the same as a 1969Z, I guess maybe they made a change with the aluminum valve covers.....
329  Camaro Research Group Discussion / Restoration / Tie Rod Dust Seals! on: September 28, 2009, 09:59:08 AM
Does anyone have a good source for the tie rod dust seals that look like the originals?  I have found the urethane ones that fit but was looking for the original looking rubber ones.  My original tie rods are in great shape but a couple of the boots were torn and I hate to buy new tie rod ends just to get boots.  Any info will be greatly appreciated.....Thanks in advance.

330  Camaro Research Group Discussion / Decoding/Numbers / Re: Exhaust Manifold dates on: September 22, 2009, 10:46:10 PM
My LH cast date:  F78
My RH cast date:  E218

Engine build date:  06/19/1968
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