Join Date: Mar 2006
Location: ELIMINATOR dealer Somis, CA
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Only a sonic check of the bores will tell you if the block will take that bore. That said, the sonic check WILL NOT tell you if there are any pin hole thin spots...that could require a sleeve. Your bore is 4.00, a 390 is 4.050, a .030 over 390 piston would require a 4.080 bore so you'd be taking .080 out of the block.
Some people can break a cannon ball, in a sand box, with their bare hands.