[bigbet068]

could some one help me ID this motor i looked up some of the numbers but could find all that i was look for. here are all the numbers on this 400 block.....rear #9790071 B218 D>N 1A front #JERRY 540051 YT heads B138-B GM 16 6 left side. right side MIKE B138 6 GM 16 8 can anyone help thanks BET.

[bigdog7373]

The block is a 68 or 69 400ci. That's all i could find.

[WDCreech]

Originally Posted by bigbet068

could some one help me ID this motor i looked up some of the numbers but could find all that i was look for. here are all the numbers on this 400 block.....rear #9790071 B218 D>N 1A front #JERRY 540051 YT heads B138-B GM 16 6 left side. right side MIKE B138 6 GM 16 8 can anyone help thanks BET.

#9790071 = 1968 400 block, B218 = February 21, 1968 casting date. D>N = cast at night, 1A - not sure. Don't know what the JERRY is about, 540051 = sequential number. YT is the block code. 330 HP 400 block with either #16 or #62 10.75:1 heads in a Firebird with an automatic. Both heads were cast on February 13, 1968.

[bigbet068]

thanks you ,everyone for all your help on this motor .i dont know how to post pics but thanks again

[WDCreech]

bigbet, to post a picture, go down below where you post a reply and click on manage attachments. From there you'll beable to browse the pictures, that you have in your computer. Click on one, then open, then submint.

[bigdog7373]

hey creech, that's a sick lookin car. How much hp/tq does it make?

[WDCreech]

Originally Posted by bigdog7373

hey creech, that's a sick lookin car. How much hp/tq does it make?

According to both my Computech ET/Weight calculator and John Wallace's on line calculators, it makes 966 HP at the flywheel. Thats naturaly asperated on race gas only. I've never had it on a dyno, so I can't tell you the torque, but with a five inch arm, it has to be a bunch.

[bigdog7373]

Sweeeeeeet