Quench explained....

[bob myers]

OK, I`m starting to catch on....I hope this helps others on the board.
The IC 836 part number I mention is keith black`s forged piston and looking at the specs it has a compression height of 2.067 which gets me .010 closer to zero deck where I can use a..039 or .041 head gasket and get my compression up and quench within .040-.45. The reason for this piston choice is that I have forged pistons in it now and I am guessing it has the typical .04-.05 piston to wall clearance. I see that the hypertectic pistons are as little as .015 wall clearance. I also see now where I will have to rebalance the crank as these KB forgings are lighter than the TRW`s I have in it now. This has really been a helpful thread to me.....thanx to all.

 

[Cranky]

I didn't go to the KB site but are you sure that piston is a forged piece? That's kinda tight for it if it is. It sounds like a hypereutectic piston which is geek speak for a metal that has a better aluminum alloy content to make it better than a standard cast aluminum piston but yet not as good as a forged piston. As far as rings, moly top ring works well on a street or strip car.

 

[bob myers]

http://www.summitracing.com/parts/UEM-IC836-030/

Here is where I found them for sale....check it out and tell me what you think. Thanx, Bob

 

[Meep-Meep]

Well lookey there, forged! Damn, I wish I saw that when I was putting my 440 together. Oh well.

Anyway, the 2.065" CH will put you at zero deck or right close to it. I think you are on the right track. Just watch your compression with iron heads. You are at a position to get exactly what you want so do your homework.