Sounds like he's defective and should be replaced - he's a frigging idiot.  If that were the case then every 71-72 454 out there would have replacement heads.  Go to http://www.mortec.com and review all the block and head casting numbers for big blocks.
 
There is an engine ID number stamped on a pad in front of the passenger side head that will at least identify the block.  CPA, CPD, CPR, CPG, and CPP identify a 71 454 in the Chevelle.
 
On 72's, the engine size was part of the VIN...example the letter "W" in the fifth position identifies the car as a 454 (270hp).

Dale McIntosh
ACES #1709/TC #92 Gold
GR8PMKN - 67 SS
http://www.dalesplace.com

 
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED]
Sent: Monday, September 24, 2001 2:46 PM
To: [EMAIL PROTECTED]
Subject: [Chevelle-List] 454 Matching numbers ?

So, in my search for a 71-72 Chevelle SS convertible, I called about a car listed and it was on consignment at a dealer.  I asked the usual questions and when it came to whether the numbers matched, he said that there is no such thing as a matching numbers 454 car.  He said that the heads were defective on all the 454's and that all the engines were replaced.  I've never heard this before, and as it sounded a little fishy to me, I thought I would ask the experts here on the list.
Thanks,
Mark
Los Angeles

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