Go Back   The Supercar Registry > General Discussion > Supercar/Musclecar Discussion


Reply
 
Thread Tools Display Modes
  #1  
Old 04-22-2019, 07:12 PM
HuggerSS HuggerSS is online now
Yenko Contributing Member
 
Join Date: May 2017
Posts: 498
Thanks: 76
Thanked 921 Times in 190 Posts
Default Engine number pad painted?

Which engines, if any had the engine number pad painted? I have seen 1st gen Z28’s and L78’s with the engine number pads not painted and I have seen L48’s and L35’s with the engine pad painted. What is correct? I am not sure if it has anything to do with a solid cam or aluminum intake.
Reply With Quote
Attachments - The Supercar Registry tn_IMG_7200.JPG tn_IMG_7199.JPG tn_IMG_7195.JPG tn_IMG_7194.JPG
O Garage vBulletin Plugins by Drive Thru Online, Inc.
Click here to view all the pictures posted in this thread...
  #2  
Old 04-23-2019, 10:25 PM
Jonesy's Avatar
Jonesy Jonesy is offline
Yenko Contributing Member
 
Join Date: Mar 2002
Location: Duluth, Minnesota
Posts: 2,987
Thanks: 271
Thanked 694 Times in 438 Posts
Default

From John Hinckley:

Quote:
Yes, the pad was masked with tape prior to the engine entering the paint booth (along with masking all the other items Engineering specified). Once the engine left the paint booth, the only way to identify it was by the suffix on the pad stamp so they knew which conveyor spur it needed to be routed on so it went to the correct spot on the rail shipping dock so it went to the correct assembly plant. Those engines were moving at 300 per hour (one every 12 seconds), and they had to be able to read the pad stamp suffix quickly. The suffix code scrawled upside-down on both sides of the block in grease crayon in the first bore air-gage station on the engine assembly line (which told everyone on the line what innards to install in that block) was covered by the paint and couldn't be seen any more
__________________
1969 Camaro RS/SS Azure Turquoise
1969 Camaro Z/28 Azure Turquoise
1984 Camaro z/28 L69 HO 5 speed
1984 Camaro z/28 zz4 conversion
1987 Monte Carlo SS original owner
Reply With Quote
The Following 6 Users Say Thank You to Jonesy For This Useful Post:
bergy (04-24-2019), big gear head (04-23-2019), PeteLeathersac (04-24-2019), purple panther (04-24-2019), ruralrte66 (04-24-2019), tunes (04-24-2019)
  #3  
Old 04-23-2019, 11:10 PM
HuggerSS HuggerSS is online now
Yenko Contributing Member
 
Join Date: May 2017
Posts: 498
Thanks: 76
Thanked 921 Times in 190 Posts
Default

Thank you, very informative
Reply With Quote
  #4  
Old 04-24-2019, 11:50 AM
70 copo 70 copo is offline
Senior Member
 
Join Date: Oct 2000
Location: chillicothe Ohio 45601
Posts: 3,834
Thanks: 219
Thanked 1,231 Times in 576 Posts
Default

As an addition to the knowledge shared here the engine Suffix designation was also crayon marked on the head or on the side of the block. Later Suffix designation labels were used for fast identification of engine assemblies.
Reply With Quote
The Following User Says Thank You to 70 copo For This Useful Post:
PeteLeathersac (04-24-2019)
  #5  
Old 04-24-2019, 01:44 PM
SS427's Avatar
SS427 SS427 is offline
Yenko Contributing Member
 
Join Date: Jul 2001
Location: Pleasant Plains, IL
Posts: 10,137
Thanks: 2,654
Thanked 3,812 Times in 993 Posts
Default

Here are two of the examples of those markings. Right side up Tonawanda big block 70 CRV on right rear of block vs upside down Flint small block 70 CTB on passenger side of block.
Attached Images
  
__________________
Rick Nelson
Musclecar Restoration and Design, Inc
www.musclecarrestorationanddesign.com
https://www.youtube.com/watch?v=62r-6vgk2_8
specializing in (only real) LS6 Chevelle restorations
Reply With Quote
The Following User Says Thank You to SS427 For This Useful Post:
70 copo (04-24-2019)
  #6  
Old 04-24-2019, 05:30 PM
Jonesy's Avatar
Jonesy Jonesy is offline
Yenko Contributing Member
 
Join Date: Mar 2002
Location: Duluth, Minnesota
Posts: 2,987
Thanks: 271
Thanked 694 Times in 438 Posts
Default

Great pics Rick!!
__________________
1969 Camaro RS/SS Azure Turquoise
1969 Camaro Z/28 Azure Turquoise
1984 Camaro z/28 L69 HO 5 speed
1984 Camaro z/28 zz4 conversion
1987 Monte Carlo SS original owner
Reply With Quote
  #7  
Old 04-24-2019, 06:05 PM
HuggerSS HuggerSS is online now
Yenko Contributing Member
 
Join Date: May 2017
Posts: 498
Thanks: 76
Thanked 921 Times in 190 Posts
Default

Were the grease pencil marks put on before the block was painted? I have seen some engines with the grease pencil marks with the engine designation on the front head. Are these marks on top of the paint or did the bleed trough the paint? Thank you
Reply With Quote
  #8  
Old 04-24-2019, 10:01 PM
70 copo 70 copo is offline
Senior Member
 
Join Date: Oct 2000
Location: chillicothe Ohio 45601
Posts: 3,834
Thanks: 219
Thanked 1,231 Times in 576 Posts
Default

At the engine Plant Yes, under the paint and yes sometimes visible through the paint depending on how thin the paint was applied. Paint runs and crude stripes were included on the head faces which is a treat if you are stripping original Chevy orange.

Crayon for Suffix was used at Norwood again to identify the engine for build up on the motor line but usage was less consistent if experienced personnel were dressing.

Suffix labels ended the need to do this at the assembly plant.
Reply With Quote
  #9  
Old 04-24-2019, 10:20 PM
SS427's Avatar
SS427 SS427 is offline
Yenko Contributing Member
 
Join Date: Jul 2001
Location: Pleasant Plains, IL
Posts: 10,137
Thanks: 2,654
Thanked 3,812 Times in 993 Posts
Default

All inspection marks that I have ever seen were on the bare cast iron with rare exception. Depending on the type of applicator the paint often times did not stick to the inspection mark too well plus it is likely they were not always dry before the engine was painted. Here are some examples of engine assembly markings.
Attached Images
     
__________________
Rick Nelson
Musclecar Restoration and Design, Inc
www.musclecarrestorationanddesign.com
https://www.youtube.com/watch?v=62r-6vgk2_8
specializing in (only real) LS6 Chevelle restorations
Reply With Quote
  #10  
Old 04-25-2019, 12:59 AM
Billohio Billohio is offline
Yenko Contributing Member
 
Join Date: Jul 2012
Location: Ohio
Posts: 1,505
Thanks: 690
Thanked 236 Times in 173 Posts
Default

My Z had 2 stripes on the front of the drivers head and what looked like a huge cursive ok on the side of the block. Probably a DZ but it was really fancy if it was. I think in the how to hot rod your small block chevy, maybe the rebuild book, it shows engines at the plant with writing on them before paint
__________________
Bill
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 12:45 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.