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Old 06-12-2018, 11:55 AM
964IMPALA 964IMPALA is offline
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Default Copo 396 9627 motor found suffix I5 ? help!!

Hi,i posted on the Impala net forum that I found a weird 1968 396 with a I5 suffix
And they say I may have a real COPO motor
Here's a picture and what I found so far,
Any help much appreciated.
5th line down shows a I5 suffix
On a COPO 396
396ci/325HP L35 IG IV IA
396ci Police IN IF IK
396ci COPO 9565 (313HP) IY? IW --
396ci COPO 9559 (IZ, I2, I3, I4)
396ci COPO 9627 (I5, JB)
427ci/385HP L36 -- IJ IH
427ci L36 SS427? -- IS IE
427ci L36 COPO 9626 (I6, I8)
427ci/425HP L72 -- -- ID

* Engine code for L73 and L30 with TH350, used in
late-year 1968 TH350 test fleet
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Old 06-13-2018, 10:01 PM
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69LM1 69LM1 is offline
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These are the "I" codes I see for 1968. None for I5, however there is an IV for a 396/325hp engine. Could it be possibly that someone used a 5 in place of a broken or missing V? I've seen substitutions in the past. Just a thought.

IF 1968 396 325 Chevrolet Police
IG 1968 396 325 Chevrolet
IK 1968 396 325 Chevrolet Police
IN 1968 396 325 Chevrolet Police
IV 1968 396 325 Chevrolet

Rich Pern

Last edited by 69LM1; 06-13-2018 at 10:07 PM.
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