Understanding engine numbers
Thread Starter
Heel & Toe
Joined: Sep 2022
Posts: 20
Likes: 2
Understanding engine numbers
I'm trying to find out information on the block numbers to confirm if it came in the original car. Right now I have another motor in the car and came across this block and I am trying to confirm it. The car serial number is 194675S116408 and the numbers I was given for this block are 5116408 (these numbers match the car numbers) C285 (build date Mar 28 1965) it's these next numbers I am not sure about these following numbers F0330HT. Any help would be greatly appreciated before I purchase it.
regards Giulio
regards Giulio
Safety Car
Joined: Mar 2009
Posts: 4,191
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From: Corpus Christi, TX
F0330HT, F means the engine was assembled at the Flint, MI plant. 0330 is the assembly date, Mar 30, 1965 and HT is the code for which engine it is, 250, 300, 350 HP. The small block guys can help you with that.
There are a few on line facilities to determine the build date of your car. Presumably it's after the 3-30-65 engine assembly date.
https://www.c2registry.org/index.php?job=BirthdayCalculator
That one says it's April 29, 1965.
There are a few on line facilities to determine the build date of your car. Presumably it's after the 3-30-65 engine assembly date.
https://www.c2registry.org/index.php?job=BirthdayCalculator
That one says it's April 29, 1965.
Team Owner
Joined: Jul 2001
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From: Various places in Southern California.
C285 sounds like the casting date. I assume that's not stamped into the pad on the front of the block, right? It's likely cast in on the rear.
The HT suffix denotes a 350HP motor installed in a Corvette.
The HT suffix denotes a 350HP motor installed in a Corvette.
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I'm trying to find out information on the block numbers to confirm if it came in the original car. Right now I have another motor in the car and came across this block and I am trying to confirm it. The car serial number is 194675S116408 and the numbers I was given for this block are 5116408 (these numbers match the car numbers) C285 (build date Mar 28 1965) it's these next numbers I am not sure about these following numbers F0330HT. Any help would be greatly appreciated before I purchase it.
regards Giulio
regards Giulio
Melting Slicks
Joined: Aug 2001
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From: Wichita KS
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Le Mans Master
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From: Prescott Arizona
No one typically removes a 'good running' engine for no reason. If that is your old block, there was a reason it wasn't in the car when you bought it.
As for that crack, did it cause the main cap bolt to loosen up and that's why that block is now bare and not still in your 65?
At least take it to a machine shop you trust and have them look it over first before committing.
Mike T - Prescott AZ
As for that crack, did it cause the main cap bolt to loosen up and that's why that block is now bare and not still in your 65?
At least take it to a machine shop you trust and have them look it over first before committing.
Mike T - Prescott AZ
Thread Starter
Heel & Toe
Joined: Sep 2022
Posts: 20
Likes: 2
Your absolutely right the original motor made a noise that he heard and stopped the car and got it towed home. I believe him we have developed a friendship ever since I bought the car. I am contacting some engine builders and machine shops around to see if it can be repaired than decide how to proceed.