'69 ZL-1 engines questions

[nuch_ss396]

I've been reviewing some of the ZL-1 reference material I
have and a few questions came to mind. I'm sure members
here can clear this up for me.

1) With the exception of the chrome valve covers, what was
the color used on all sheet metal engine parts? Was it
gloss black, semi-gloss black, etc.?

2) What color were the engine lift brackets? Natural, or
black?

3) I know the BB Camaro's couldn't use the windage tray
due to oil pan clearance with the frame, but why
couldn't/didn't GM make a special oil pan that could use
the windage tray? They made so many other special parts
for these cars...... Also, why were the Z/28's able to
use a windage tray? Was the small block oil pan to frame
clearance a non-issue?

4) Did any ZL-1 engines come with aluminum water pumps?
Possibly in the 2 ( or 3 ) Corvettes.

5) Did any of the ZL-1's use the lifter valley oil splash
shield? This was a sheet metal part that fit in the lifter
valley ( just below the intake ) and kept oil from
splashing on the bottom of the intake. I have one here
somewhere? BTW, I'm not referring to the splash shield
riveted to the bottom of many of the aluminum intakes of
the day.

6) Were the oil pan and timing cover bolts natural color,
or were they painted black?

7) I believe that the ZL-1's used special ( extra length )
head bolts as well. Can someone confirm this?

That's it for now. http://www.yenko.net/ubbthreads/images/graemlins/hmmm.gif

Steve

[396L35]

[ QUOTE ]

1) With the exception of the chrome valve covers, what was
the color used on all sheet metal engine parts? Was it
gloss black, semi-gloss black, etc.?

2) What color were the engine lift brackets? Natural, or
black?

4) Did any ZL-1 engines come with aluminum water pumps?
Possibly in the 2 ( or 3 ) Corvettes.

That's it for now. http://www.yenko.net/ubbthreads/images/graemlins/hmmm.gif

Steve

[/ QUOTE ]
1) All engine parts were painted semi-gloss black or low gloss...

2) The brackets were painted semi-gloss black or low gloss...

4) Aluminum water pumps were used..
I hope this helps.... http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[nuch_ss396]

Mark,

Can you tell me more about the aluminum water pumps that
were used? Were they used on Camaro's? Were they the
long nose version? If so, got a part number for that WP?
Seems like every ZL-1 I've seen used the painted cast iron
version. What else can you tel me?

Steve

[ZL1.FUN]

short aluminum water pump on the ZL1's casting number 3975928, and I also believe they use these still, on the 572 crate motor’s, but there is just as much indication that the cast iron 3931065 was used. Both would have been painted black

[396L35]

I just remember seeing a picture of a ZL1 with the short aluminum water pump... Maybe they used the cast as well but I'm no expert... http://www.yenko.net/ubbthreads/images/graemlins/naughty.gif I'll try to get that picture posted as soon as I get home from work... http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[396L35]

The first two camaro ZL1's came with the aluminum water pump that were natural aluminum finish casting #3968811. This pump looked exactly like the cast iron pump but it was aluminum... They only used it on the first two or so cars before they noticed that the bearing was moving in the housing so they went to the cast iron pump.. It explains it on page 176 in The 1969 Camaro Reference Book From A to Z by John Hooper.. It also says they used the short aluminum pump like the corvette pump as well... Here is a part # list on the ZL1 cars... http://www.copo.com/ZL1-Parts-Listing.htm Hope this helps... http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[GMH454]

[ QUOTE ]
I'm sure members
here can clear this up for me.


7) I believe that the ZL-1's used special ( extra length )
head bolts as well. Can someone confirm this?

That's it for now. http://www.yenko.net/ubbthreads/images/graemlins/hmmm.gif

Steve

[/ QUOTE ]

Mine has some lovely studs that stand around 3 1/2" out of the block. Been there for 22 years and thought they were factory, though have never seen any others.