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2003 Chevy Malibu Casting Numbers

Tiny
RANDYROMAN
  • MEMBER
  • 2003 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
I'm getting my heads rebuilt and the shop wants to know what the casting numbers are and if the rockers are 8 or 10mm? How do I find this out? The engine I.D. Number tag on the valve cover is gone.
Friday, December 25th, 2009 AT 12:44 PM

3 Replies

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Six Cylinder: Passenger side of the block behind the distributor.

The prefix portion of the ID code tells you the assembly plant code, and the engine's production date (for example, 0701 = July 1st. No year is indicated). The suffix portion tells you the original model year / engine / transmission / car combination when it went down the assembly line
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Saturday, December 26th, 2009 AT 10:38 AM
Tiny
RANDYROMAN
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  • 8 POSTS
Well, thats half of the answer. I could just imagine you ranting and raving and just missing the entire reason of the question!
WHERE ARE THE CASTING NUMBERS? And HOW DO YOU KNOW IF IT'S AN 8mm or 10mm ROCKERS?
Or was that not clear?
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Saturday, December 26th, 2009 AT 1:00 PM
Tiny
RANDYROMAN
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  • 8 POSTS
Well, because your answer was so close to not-even-close, I went elsewhere. Thank you for NOTHING!
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Tuesday, December 29th, 2009 AT 6:26 AM

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