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#1
03-25-2007, 12:16 AM
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454?
Looked at a 4 bolt main block out of a boat, supposedly a 454. Eng cast number is 1401544, kinda iffy on the first number as its rusty from all the salt water. Number on a front pad reads T10045XFF. Does say Hi Perf Pass on the block but my guess is that it is a mid 70's truck block??? It does have the extra external oil cooler hole by the filter. Appreciate any help decoding this if I have enough to go on here.
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Dave  
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#2
03-25-2007, 01:12 AM
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Re: 454?
the 1401 part of the number is most likely correct, but you're missing a digit in the last 4. The GM numbers with the 1401 prefix are 8-digit numbers.
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1969 Chevelle SS396 L78 M22 4:10 Tuxedo Black 1970 LS3 Malibu 400 BB convertible 1970 LS3 Malibu 400 BB coupe 1970 Chevelle 300 series LS3 400 BB coupe, special order Monaco Orange 1970 Chevelle Concours Estate LS3 400 BB wagon 1970 Chevelle SS396 L78 M21 3:55 Tuxedo Black
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#3
03-25-2007, 01:08 PM
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Re: 454?
One book I have says: 14015445 454 75-87 TRUCK LIGHT-DUTY
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Anders Stålklint. After selling my COPO 9561 I´m now a "postman" with the main project being a 1966 327 2 dr sedan Chevy II. 
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#4
03-26-2007, 06:39 AM
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Re: 454?
Makes sense, lot of 454 truck blocks in boats around here, didn't figure it was anything significant, but I didn't have anything close to the number. Next time I'm over there I will take a brush to it, quite a bit of rust to deal with.
Thanks Anders
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Dave
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