Budget stroker build parts questions

[MoFo]

Nevermind... I found what I was looking for in the strokers FAQ section. Thanks.

 

[MoFo]

I think I found an early 258 crank and rods, although it is 200 miles away. Where is the casting number located on the 258 crank, and is it visible with the crank in the short block? The seller also has a lot of 232 parts. I want to make sure I don't "accidently" buy a 232 crank, since they all have 12 counterweights and the stroke is only .395" less than the 258.

 

[MoFo]

The H802CP piston has a 1.592" compression height which is 0.007" more than that of the 677CP (1.585"), and will therefore yield a 0.007" lower deck clearance and quench height. The resulting SCR would be 0.3:1 higher 'cause of the smaller dish volume and lower deck clearance. Both of these pistons are used with 4.2 rods.
The Keith Black IC944 pistons (21.6cc dish) have a compression height of 1.353" and must be used with the longer 4.0 rods. The advantage of using this piston/rod combination is that you can shave 0.020" from the block deck and still have an acceptable SCR (~9.6:1) but with a lower quench (0.051" with a 0.043" head gasket).

Dino - I don't see how the increased compresson height of .007 will make any difference to the outcome, bucause I don't think there is any way to avoid milling the block to get a reasonable quench height. The machine shop is going to charge me the same, whether I mill .022" or .015" I don't think I can burn 87 octane with a quench height of .065" Am I missing something here?

TIA, I really appreciate everybody's time and input.

 

[Dr. Dyno]

Who says you have to mill the block? I think some people are getting too hung up on looking for a tight quench when that's only a small part of the performance/low octane equation.
My stroker has a 0.088" quench, 9.25:1 CR (block and head not milled), and stock cam. It has no trouble running 87 octane in sub-90*F weather with the hottest grade Champion RC12LYC plugs. What makes a real difference is keeping the engine running cool and there's no rocket science to that either. In my case it's just simply a good stock 2-row radiator, 180* t'stat, and a Flowkooler water pump.
I'm a great believer in the KISS principle and I stuck to that with my stroker.