I’m not looking for all out power. My goal is tons of low end torque for trouble free daily street driving. I even want it, so engine will rarely exceed 5,000 RPM. Also looking for quietness if I want to make long distance trips (and yes, I know strokers are not quiet, by design).
I have three 400 blocks, two of which are NOS. Diamond made me two sets of coated pistons, so I could retain the OE bore. I also wanted to keep the rod/stroke ratio at 1.65 or less.
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A picture of one of my pistons.
What I got was a pair of their 400>>470 kits.
3.915” stroke/6.535” length rods.
That gave me a 1.66 rod ratio – which is a tad more than I wanted.
My calculated (not yet measured) compression ratio is 9.486:1, using the Diamond pistons and aluminum stealth heads.
so why aren't you using the pistons from 440 source?
Unrelated, I do have two pair of new 440 Source 0.010 over 400 piston sets (w/pins & rings) that willing to almost give away - if anyone is looking for a set (or two). As in give away – I mean for the cost of freight and boxing up and such. They came with part of the “400.470.5060” set – which is about ½ way down on this web page
http://store.440source.com/Stroker-Kits/products/3/ .
View attachment 32057
BudW