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Old 06-29-2012, 03:27 PM
LIRacer LIRacer is offline
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Default Identify a real LS6
I am considering the purchase of a 1970 SS. Origianly an LS5 car, the seller is claiming a real LS6 presently resides in the engine bay. What would the casting numbers be for a real 19970 LS6 or how can I determine what it really is?

Thanks
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Old 06-29-2012, 06:39 PM
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69chevelless 69chevelless is offline
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I'm not saying we don't know are stuff here but have you posted this on Team Chevelle?
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Old 06-29-2012, 08:55 PM
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Quote:
Originally Posted by 69chevelless View Post
I'm not saying we don't know are stuff here but have you posted this on Team Chevelle?
Shame on you.....
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Old 06-29-2012, 10:32 PM
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69chevelless 69chevelless is offline
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Shame on you.....
If someone on this site is an LS6 expert then maybe they should help this guy out.

All I did was ask this guy if he posted it anywhere else first. haha
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Old 06-29-2012, 11:39 PM
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shadowgray396 shadowgray396 is offline
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If it is an LS6 crate motor it will have an XAA suffix stamped on the pad above the timing cover, a real one would have 512 stamped on the block. Also you would need to find out what heads it has on it and intake. I'm no expert on this subject. A lot of 454 motors claimed to be built to the specs of the LS6. You would need more info about the motor to be sure.

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Last edited by shadowgray396; 06-30-2012 at 12:47 AM.
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  #6  
Old 07-06-2012, 04:16 PM
LIRacer LIRacer is offline
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I confirmed that the casting number is 3963512 which is a 427/454 COPO block according a website that I fond that lsists all Chevy casting numbers. Anyone know a good inpector / appriaser that knows Chevelles?
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Old 07-06-2012, 04:23 PM
LIRacer LIRacer is offline
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I confirmed that the casting number is 3963512 which is a 427/454 COPO block according a website that I fond that lsists all Chevy casting numbers. Anyone know a good inpector / appriaser that knows Chevelles?
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Old 07-06-2012, 05:26 PM
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What suffix is stamped on the front pad?
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  #9  
Old 07-06-2012, 06:51 PM
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Quote:
Originally Posted by 69chevelless View Post
If someone on this site is an LS6 expert then maybe they should help this guy out.

All I did was ask this guy if he posted it anywhere else first. haha
I was just giving you a hard time. No harm intended.
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Old 07-06-2012, 09:25 PM
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Derek69SS Derek69SS is offline
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Rick Nelson at MuscleCar Restoration and Design is THE authority on LS6 cars. Do yourself a favor and talk to him before you buy anything.

http://www.musclecarrestorationanddesign.com/
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