When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I was checking this engine out on a 67 i'm looking to buy and freshen up, but the numbers are confusing me. I could use some help. Here is the stamped #'s : VII23HO (ALL CAPS)
I was checking this engine out on a 67 i'm looking to buy and freshen up, but the numbers are confusing me. I could use some help. Here is the stamped #'s : VII23HO (ALL CAPS)
thanks for any info.
A ’67 engine stamped VII23HO, means it was assembled at the Flint engine plant on November 23, 1966 as a 300HP/327 with an automatic transmission (Powerglide). I say it like that because Flint used the HO engine suffix during other years going back to '65 (250HP/327, at) and forward to '68 (300HP/327, at).
The '67 block casting number should be 3892657 with a date code before November 23, 1966. If the engine is original to the car, the stamp pad should also have a VIN derivative starting with 71..... followed by the last five digits of the VIN.
A ’67 engine stamped VII23HO, means it was assembled at the Flint engine plant on November 23, 1966 as a 300HP/327 with an automatic transmission (Powerglide). I say it like that because Flint used the HO engine suffix during other years going back to '65 (250HP/327, at) and forward to '68 (300HP/327, at).
The '67 block casting number should be 3892657 with a date code before November 23, 1966. If the engine is original to the car, the stamp pad should also have a VIN derivative starting with 71..... followed by the last five digits of the VIN.
The 11 actually looks like the letters II. Everything else matches up. Any ideas ? Thanks
The 11 actually looks like the letters II. Everything else matches up. Any ideas ? Thanks
The "I" character was used in place of the "1" character in the engine plant stamp - it was perfectly normal.
Here's a stamp pad pic I had handy - it's a big block, but you can see the use of the character "I" in the engine plant stamp. It also shows an example of a '67 VIN derivative.
The "I" character was used in place of the "1" character in the engine plant stamp - it was perfectly normal.
Here's a stamp pad pic I had handy - it's a big block, but you can see the use of the character "I" in the engine plant stamp. It also shows an example of a '67 VIN derivative.
Thanks Mike. Greatly appreciated.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
My understanding is that sometime the guy who stamped the engine pad would use an "I" instead of a number one some of the time. No, QC for stamping engines back in those days... Long hours worked at GM plants pushing out there new big blocks 427's mistakes where made.
My understanding is that sometime the guy who stamped the engine pad would use an "I" instead of a number one some of the time. No, QC for stamping engines back in those days... Long hours worked at GM plants pushing out there new big blocks 427's mistakes where made.
Engine # id
