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Author Topic: 1969 L78 Smog set up  (Read 4177 times)

Driveway_finds

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1969 L78 Smog set up
« on: May 21, 2021, 03:19:42 AM »
I have a 1969 L78 I’m in the process of restoring. There’s a seller on eBay that is selling a complete “restored” set up. Has anybody had any luck with this one? Thanks!
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1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
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x66 714

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Re: 1969 L78 Smog set up
« Reply #1 on: May 21, 2021, 03:29:58 AM »
Can you post the link?...Joe
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See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

Driveway_finds

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Re: 1969 L78 Smog set up
« Reply #2 on: May 21, 2021, 04:33:16 AM »
Here’s the link, thanks!

https://www.ebay.com/itm/274777061021
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1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
Check out driveway_finds on Instagram!

buenymayor

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Re: 1969 L78 Smog set up
« Reply #3 on: May 21, 2021, 07:17:25 AM »
Diverter valves are different between a SB and a BB. The difference is slight, but if you are going for a 100% correct restoration, you'll have to confirm with the seller which valve it has. IIRC, the SB valve is 29295, and the BB valve is 29297, but I'd confirm that with someone here. Pulley is probably a repop, but those are easy enough to change down the road.
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z28z11

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Re: 1969 L78 Smog set up
« Reply #4 on: May 22, 2021, 03:41:05 PM »
Quote from: buenymayor on May 21, 2021, 07:17:25 AM
Diverter valves are different between a SB and a BB. The difference is slight, but if you are going for a 100% correct restoration, you'll have to confirm with the seller which valve it has. IIRC, the SB valve is 29295, and the BB valve is 29297, but I'd confirm that with someone here. Pulley is probably a repop, but those are easy enough to change down the road.

Correct on the diverter valves. Years ago, ASL in Nevada had great, correct kits for not too far south of what this vendor is aksing. There are several choices here, including PartsPlace for a couple of hundred less. If you want to piece one together nowadsya, good luck - most of these parts like the correct restored pump and diverter will set you back some serious change if you can find them. Do yourself a favor and order an inoperative kit (devaned pump) and plug the exhaust tubes - it will be easier to tune, and get away from the inherent pump problems the cars always seemed to have.

Regards,
Steve
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1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

Driveway_finds

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Re: 1969 L78 Smog set up
« Reply #5 on: May 23, 2021, 04:15:25 AM »
Awesome thank you guys for the responses!
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1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
Check out driveway_finds on Instagram!

WorkinProgress

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Re: 1969 L78 Smog set up
« Reply #6 on: May 23, 2021, 05:52:08 PM »
The B/B bracket for the pump in the picture shows two holes in it on the bottom. As far as I know that is a newer bracket. I do not think any '69 Camaro had that bracket, but possibly end of year build got it.

                                                                                - Warren
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