RustyRatRod's Guide To Hot Rod Bliss

Rusty,
I was looking at your choice of sealed power 526AP cast flattops, and wondered why you would choose these over the KB 167 cast flattops with valve reliefs. Does it have something to do with compression, and the valve reliefs in the 167s lowering compression a bit?

I have found sets of the 526AP 's on evilbay, with sets of cast rings for about $125 pistons with rings, or do you recommend a different ring than in the sealed power piston and ring kits.

Just curious. I havent cracked my 74 318 open yet for its rebuild, i am currently using it to mock up everything in the engine compartment. I was leaning towards the kb167s before this thread. I intend to do my 318 low buck and keep on the hunt for a 360 for a hotter buildup later.

Budget, duhh. KB's cost more. Plus you have to have file fit rings. They cost more. Plus you have to have the sheen shop file them. Cost more. It is easy to do I know, but I am assuming a newbie here who might not quite have skills yet to do such. Lastly, there is no chance for any type of funky failure in the event "someone" doesn't get the ring gaps right.

JMO that the KB pistons are not needed here.