I cannot manage to decrypt my engine code and numbers? Missing smthing? What's wrong?
Thread Starter
Intermediate
Joined: Sep 2014
Posts: 48
Likes: 0
I cannot manage to decrypt my engine code and numbers? Missing smthing? What's wrong?
Hello!
I have read online what I could about decrypting my engine numbers to know what kind of engine I have. I took all the numbers needed but it seems like my numbers doesn't match what they should look like.
I have been told my engine is a '68 327 vette engine...
At the front of the engine, passenger side, in front of valve cover I have 2 numbers:
781142902 (which, I believe, is the ''partial VIN'')
V0423HH (which, i believe, is the ''engine code'')
At the back of the engine, driver side near the transmision flange is:
3914678 (which, I believe, is the ''casting number'')
None of these number seems to get me to anything...
is there any good reference website I could use to know what engine I really have?
thansk a lot and have a nice day
g.b.
I have read online what I could about decrypting my engine numbers to know what kind of engine I have. I took all the numbers needed but it seems like my numbers doesn't match what they should look like.
I have been told my engine is a '68 327 vette engine...
At the front of the engine, passenger side, in front of valve cover I have 2 numbers:
781142902 (which, I believe, is the ''partial VIN'')
V0423HH (which, i believe, is the ''engine code'')
At the back of the engine, driver side near the transmision flange is:
3914678 (which, I believe, is the ''casting number'')
None of these number seems to get me to anything...
is there any good reference website I could use to know what engine I really have?
thansk a lot and have a nice day
g.b.
Racer
Joined: Jan 2014
Posts: 407
Likes: 14
From: Mulberry Florida
Hi! g. b.
I'm not an expert, but my black book says the number 3914678 is a 68"327 300hp or 350hp block, as for the other number the only thing I could find is the number that has the HH at the end shows to be listed in the 67" as a 300hp. with mt. Hope that helps.
Larry
I'm not an expert, but my black book says the number 3914678 is a 68"327 300hp or 350hp block, as for the other number the only thing I could find is the number that has the HH at the end shows to be listed in the 67" as a 300hp. with mt. Hope that helps.
Larry
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Not a Corvette VIN derivitive. Are you certain the characters are correct?
Flint engine assemly plant (V) April 23. You'll have to use the casting date for the year.
HH indicates 65-67 Corvette use, but also a 69 350CID generic passenger car engine.
3914678 is correct for a 68 327CID but the block could have been used in other GM applications.
I agree with you: I'm not sure what you have.
...V0423HH (which, i believe, is the ''engine code'')...
HH indicates 65-67 Corvette use, but also a 69 350CID generic passenger car engine.
...transmision flange is: 3914678...
I agree with you: I'm not sure what you have.
Race Director
Joined: Mar 2003
Posts: 11,608
Likes: 780
From: Eustis ( Area 51 Bat Cave ) Fl
Back in the 80's everything modded had a "vette" engine I even still see it a lot on CL seems there were far more vette engines made than vettes...
Didn't 50's have thicker balancers than 27's?
Didn't 50's have thicker balancers than 27's?
Thread Starter
Intermediate
Joined: Sep 2014
Posts: 48
Likes: 0
I have been searching all morning with no real results again...
here are the pictures I took... showing all the numbers I have on the block.
https://www.dropbox.com/sc/2z1hq4t4o...xq2hgr-oVrZTQa
I triple checked my numbers and everything is right... what weird engine am I having?
BTW, it came in the car when I got it... 68 camaro
thanks
g.b.
here are the pictures I took... showing all the numbers I have on the block.
https://www.dropbox.com/sc/2z1hq4t4o...xq2hgr-oVrZTQa
I triple checked my numbers and everything is right... what weird engine am I having?
BTW, it came in the car when I got it... 68 camaro
thanks
g.b.
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
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
The casting date is D 4 8 which is April 4 1968. This matches well with the engine assembly date of April 23 (V0423HH). The single character in the casting date year and the square plug near the stamp pad match indicate a Flint cast block which matches with the V prefix on the stamp pad.
I'd guess that the engine is the '69 350 cu. in version mentioned above. The 3914678 casting is known to be used for 302, 327 and 350 cu. in engines.
The April '69 assembly date sounds unusually early for the '69 production year and weird VIN gives no further clues. Dunno.
I'd guess that the engine is the '69 350 cu. in version mentioned above. The 3914678 casting is known to be used for 302, 327 and 350 cu. in engines.
The April '69 assembly date sounds unusually early for the '69 production year and weird VIN gives no further clues. Dunno.