posted July 20, 2003 08:10 PM
Click on Menu in the upper left hand corner of the screen to see the links to the toolbox.
posted July 31, 2003 04:48 PM
the X designates that those heads came out of a corvette if that tells you anything. Anything chevy with X behind it means a good thing. just a warning, tech guys will DQ alot of X heads if you're not running an unlimited stock class
posted July 31, 2003 11:35 PM
you wereasking about 487x the runner is 10cc bigger i have a machine shop you will find with a 2b carb that the 1.850\1.600 valves will help it don't kill the air! the 441x mite be the ticket!
posted August 02, 2003 10:22 PM
Thanks for the info guys.Did chevy make 1.86 intake valves stock.We have to run everything stock, except 3 angle valve job.The teck man said 487 x were legal, so im gonna run them.I heard that they made these heads with 1.94 150 or 2.02 1.60, but ive never heard of any other valve size.Let me know what you talking about.Thanks alot .TH.