Author Topic: 1969 RSSS L78 Project  (Read 808 times)

69Z28-RS

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Re: 1969 RSSS L78 Project
« Reply #15 on: December 04, 2019, 02:46:17 PM »
"Chirping 2nd gear." That's cute. ;-) If you aren't smoldering third you need a new power plant lol. Even with 3.31s I couldn't think about going full bore in 2nd. Just busting your chops Gary...

No problem Dave... :)    As I said, it's a factory original stock '72 BASE 350 that I rebuilt (30 over) about 15 yrs ago..  For what it is, I'm pleased with how it runs... :)    (factory rating was 200 bhp).. :)

PS.  What you really need is to get some of that Big Fat Block weight over the drive wheels!!  :)
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

HawkX66

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Re: 1969 RSSS L78 Project
« Reply #16 on: December 04, 2019, 04:37:34 PM »
"Chirping 2nd gear." That's cute. ;-) If you aren't smoldering third you need a new power plant lol. Even with 3.31s I couldn't think about going full bore in 2nd. Just busting your chops Gary...

No problem Dave... :)    As I said, it's a factory original stock '72 BASE 350 that I rebuilt (30 over) about 15 yrs ago..  For what it is, I'm pleased with how it runs... :)    (factory rating was 200 bhp).. :)

PS.  What you really need is to get some of that Big Fat Block weight over the drive wheels!!  :)

You are absolutely right!
Dave
69 SS396 X66 L34 M21 BS
Z23 711 U17 Hugger Orange
Semper Fi! USMC 93-02

Driveway_finds

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Re: 1969 RSSS L78 Project
« Reply #17 on: December 05, 2019, 06:58:48 AM »
Kurt-
Car has a BU 12 bolt in it. Thank you guys for all the replies! Excited to see it on the road soon!
1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
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KurtS

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Re: 1969 RSSS L78 Project
« Reply #18 on: December 05, 2019, 08:35:38 PM »
Thanks! Don't see too many of those in that drivetrain. What's the stamped axle date?
Kurt S
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Driveway_finds

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Re: 1969 RSSS L78 Project
« Reply #19 on: December 11, 2019, 04:09:45 AM »
Itís got a BU 10 10 G1 E code

-Dustin
1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
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KurtS

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Re: 1969 RSSS L78 Project
« Reply #20 on: December 11, 2019, 06:35:34 AM »
Thanks! Not original to the car, btw.
Kurt S
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bcmiller

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Re: 1969 RSSS L78 Project
« Reply #21 on: December 11, 2019, 03:51:15 PM »
Probably had a 3.55 axle originally.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

Driveway_finds

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Re: 1969 RSSS L78 Project
« Reply #22 on: December 12, 2019, 08:03:36 AM »
Curious what a 69 3:73 rear axle code would be? I assumed ours did not have the original rear
1969 RSSS L78
1970 RS L78 clone
1970 C10 LS swap
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69Z28-RS

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Re: 1969 RSSS L78 Project
« Reply #23 on: December 12, 2019, 01:19:46 PM »
The BU code was originally the std rear in '69 Z28s, and would have been 3.73:1 ratio.
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

bcmiller

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Re: 1969 RSSS L78 Project
« Reply #24 on: December 12, 2019, 02:17:58 PM »
Gary, positraction was recommended for Z28s - but not required. 3.73 was the standard ratio. Yes BU is the most common, but there are Z28s that received the BO 3.73 open rear end.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

69Z28-RS

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Re: 1969 RSSS L78 Project
« Reply #25 on: December 12, 2019, 02:45:27 PM »
You are right Bryon,, but your answer wasn't complete either (to his question of 'Curious what a 69 3:73 rear axle code would be?')

The complete answer would have included the QX code as well as the BU and BO codes, but the BEST answer of all would have been to refer him to the full table in the archive...      http://www.camaros.org/drivetrain.shtml#AxleCodes 

 
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

bcmiller

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Re: 1969 RSSS L78 Project
« Reply #26 on: December 13, 2019, 01:07:41 AM »
I donít think we fully understand the question.

In 1969 a 3.73 ratio was standard for a Z28 and the optional - performance - ratio - for L78 and L89. I think a 3.73 ratio could also be special ordered with L34, L48 and LM1.
« Last Edit: December 13, 2019, 02:34:19 AM by bcmiller »
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016