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454 engine #'s help

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Old Dec 9, 2003 | 10:44 AM
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From: meraux LA
Default 454 engine #'s help

Can anyone help me identify the motor which came with a 72 BB I purchased about a year ago. When I purchased the car the guy said everything was original except the motor and averything has panned out. He gave me a motor and 2 sets of heads for the BB. The #'s I got off the block are (TO1104XC) and the vin. on the back it has "HI-PER PASS " I don't see any other numbers on the block.

The heads have the following : 1 set has H31 71 GM12T 6272292
the other set has C7 72 GM11T 3999241

also the intake has GM3963569

Thanks for the help.

:cheers: :cheers:
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Old Dec 9, 2003 | 10:55 AM
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From: Maple
Default Re: 454 engine #'s help (crf311)

1st set of heads...6272292....70-78...oval...OPEN...402, 454

2nd...3999241....72......oval...OPEN...4 02, 454, 113cc chamber

intake...3963569.. 402 / 375 70 Camaro, Nova, Chevelle, L-78 Aluminum, Square Port, Lo-Rise, Holley carb

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Old Dec 9, 2003 | 12:03 PM
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St. Jude Donor '05-'07
Default Re: 454 engine #'s help (crf311)

Look on the right side (driver's side) of the motor in the back. There should be a number stamped in the block above the bellhousing where you can see it. I have a 1972 454 in my Vette. Numbers matching blah blah blah. I also have HiPerf Pass on my block. But the block is a 2-bolt main. Yours probably is too. Sorry. Give me the casting number and I can verify it.

Dep
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Old Dec 9, 2003 | 02:45 PM
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Default Re: 454 engine #'s help (crf311)

The "XC" part of the suffix, is probably missing a 'C" in front of it. CHeck out this site.
http://www.nastyz28.com/sbchevy/spcodeb.html

It looks like it's a 2 bolt '74 block from a Chevelle or Monte Carlo.

see site : http://www.chevy-camaro.com/chevy-ca...gine-codes.htm

"T" means Tanawonga (sp?) Plant in I think New York.


[Modified by vvv90, 1:46 PM 12/9/2003]
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Old Dec 9, 2003 | 04:53 PM
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Default Re: 454 engine #'s help (vvv90)

Hey thanks for the help. It looks like the block is a marine engine either a 230 hp or 370 hp. I guess I will take the pan off to see if it is a 2 or 4 bolt. The 4XC is clear on the engine. Don't know much about a 1984 LE 8 230 hp or a 1994 L-19 370 hp. Anyway thanks for the input. :cheers:
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