help me decipher an engine code

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Aug 8, 2007 | 09:23 PM

kramek

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Joined: Mar 2005

Posts: 58

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From: El Cerrito CA

help me decipher an engine code

Hello All,
I'm trying to decipher an engine code on a 72 coupe. I don't think the numbers match but I can't figure it out.
It reads
C5FZ2560 or C5F42560
at least thats all I can barely read today any suggestions would be appreciated
thanks
HK

Aug 9, 2007 | 08:53 AM

ROBMERRILL

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Joined: Apr 2007

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From: Little Neck NY

1972 Engine Identification Codes:
Engine Code Cubic Inches Order Code H.P. Applicable Equipment
CKW 350 Base 200 Rochester Q-jet & 4-Speed
CDH 350 Base 200 Rochester Q-jet, NB2 & 4-Speed
CKX 350 Base 200 Rochester Q-jet & Turbo Hydra-Matic
CDJ 350 Base 200 Rochester Q-jet, NB2 & Turbo Hydra-Matic
CKY 350 LT1 255 Holley 1x4BC, Mechanical Lifters, & 4-Speed
CRT 350 LT1 255 Holley 1x4BC, Mechanical Lifters, K19 & 4-Speed
CKZ 350 ZR1 255 Performance Package, LT1 Engine & M22 4-Speed
CPH 454 LS5 270 Rochester Q-jet, Hydraulic Lifters & 4-Speed
CPJ 454 LS5 270 Rochester Q-jet, Hydraulic Lifters & THM
CSR 454 LS5 270 Rochester Q-jet, Hyd. Lifters, K19 & 4-Speed
CSS 454 LS5 270 Rochester Q-jet, Hyd. Lifters, K19 & THM

1972 Engine Block Casting Numbers:
Casting # Cubic Inches Description/Application
3970010 350 200 & 255 Horsepower
3970014* 350 200 & 255 Horsepower
3999289 454 270 Horsepower

Aug 9, 2007 | 09:20 AM

Easy Mike

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Joined: Jun 2000

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From: Southbound

Cruise-In II Veteran

Quote:

Originally Posted by kramek

...C5FZ2560 or C5F42560

Neither of these numbers appears to be a Corvette number. Are you sure these are engine identification stamps? The C could indicate 1982 production.

Check the pad at the front of the right head again. There should be two numbers stamped there.

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