nailhead casting number ? [Archive]

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drifter336

10-10-2003, 07:52 PM

I have a 1963 lesabre and need to find out the engine specs and size. It is a nailhead but I cant find anywhere that can show me what the engine code means.The code is JS 688 located on the front of the motor near the intake manifold.Thanks for any help

txgwildcat

10-10-2003, 08:44 PM

265 hp 401 = 63 JS

drifter336

10-10-2003, 09:21 PM

thanks for the help

txgwildcat

10-11-2003, 10:38 AM

If you want to upgrade to a 4v intake. I have a complete setup for a '63, $200. Includes intake, carb, air cleaner and heat riser tubes.