1st 318 rebuild

I used 340 heads with Keith black KB399 dome top pistons in my 318.

Most people on here will recommend the KB167 pistons because there's been a few magazine articles that use them in 400 hp builds.

I much prefer the KB399. It has a solid dome top on it which can be machined to alter your compression ratio without milling hell out of your block and heads.

If you zero deck your block and mill cylinder heads. you WILL need new shorter pushrods and then you also have to get the intake faces of the cylinder heads machined and the whole thing becomes an expensive pain in the neck!

Also, once you machine something, it's gone forever. In most cases can only shave about 0.060" off a head before it's junk.

Mine came to about 10.4:1 compression ratio with 2.02" intake valves and 1.6" exhaust valves. Combustion chambers were 66.5cc.