boring a 7m na?

mrnickleye · 01-11-2007, 01:44 AM

The block must be stripped to bore the cylinders. These blocks are very tough, and usually not necessary to bore. When i did the valve job at 80k miles, there were still hone marks on the cylinder walls.

Call a local machine shop to get a price. Then you'll need new 'over-sized' pistons and rings, and wrist pins.

01-11-2007, 01:44 AM	#3
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	The block must be stripped to bore the cylinders. These blocks are very tough, and usually not necessary to bore. When i did the valve job at 80k miles, there were still hone marks on the cylinder walls. Call a local machine shop to get a price. Then you'll need new 'over-sized' pistons and rings, and wrist pins. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.