Engine number
Race Director
Joined: Feb 2002
Posts: 11,616
Likes: 1,055
From: Compound in the Grove, Ga.
2026 Corvette of the Year Finalist - Unmodified
2025 C4 of the Year Winner - Unmodified
2024 C4 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
2015 C4 of the Year Finalist
St. Jude Donor '16
A brass brush and scrub away, the numbers are stamped into the block.
Team Owner
Joined: Sep 2006
Posts: 31,270
Likes: 4,362
From: Westminster Maryland
Hi Jason,
I'd caution you about using ANY kind of metal brush or tool on the stamp pad. The reason being that besides the stamps that might be there, preserving any of the original surface that might be left is important too.
Is the pad so rusty you can't read anything? Usually pads can't be read because of paint and dirt.
In order for me to make a suggestion I'd like to see a picture of what you're facing.
I'm thinking of starting with a THIN coat of gel rust remover to begin to determine if there's any stamp remaining; but a picture first!
Regards,
Alan
I'd caution you about using ANY kind of metal brush or tool on the stamp pad. The reason being that besides the stamps that might be there, preserving any of the original surface that might be left is important too.
Is the pad so rusty you can't read anything? Usually pads can't be read because of paint and dirt.
In order for me to make a suggestion I'd like to see a picture of what you're facing.
I'm thinking of starting with a THIN coat of gel rust remover to begin to determine if there's any stamp remaining; but a picture first!
Regards,
Alan
Melting Slicks
Joined: Jun 2006
Posts: 2,071
Likes: 147
From: S Nevada
I've used a green scotch brite pad to the clean stamp pad when looking for my numbers on the eng, trans, etc. A little water based degreaser such as purple power sold at autozone helps in cleaning too. (sometimes a lot is needed)
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Cruising
Joined: Oct 2010
Posts: 10
Likes: 0
From: Ohio
The stamp is T0502IL.
T = made in Tonawanda, New York
0502 = mm/dd assembled on May 2, 1968
IL = L36 with Rochester Q-Jet, hydraulic lifters and four speed
My reference book is Corvette 1968-1982 Restoration Guide, 2nd Edition (Motorbooks Workshop).
It's mine.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Pro
Joined: Sep 2007
Posts: 735
Likes: 1
From: Harleysville PA
Don't ever use a scrub pad or brush to clean a stap pad unless you want to ruin it or its a low value car.