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  #31 (permalink)  
Old 06-02-2008, 10:47 AM
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'I would like a truck built around a 350 sbc. When I step on the gas, I would like it to go as fast or faster than traffic. mileage is not an issue with me. I am willing to give up some bottom end torque for some scoot. My plans are to address the rear end with 3.73 or 4.11 gears, coupled to a stall converter with around a 2600-3000 stall to work with the cam that was recommended."

This build need not have forged pistons or any other more expensive parts. Good gaskets, bearings and moly rings will compliment the build to achieve what the target goals are.

Personally, as far as deck height is concerned, I'd deck it to 9.010" and use a .035" composition gasket to get .045" quench. That would be fine and not raise the CR any more than necessary. I would watch the total timing carefully so as not to contribute to detonation.

tom

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  #32 (permalink)  
Old 06-02-2008, 12:59 PM
How fast is fast enough?
 
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Am I the only one who goes to "zero deck height" when I bother to get it decked? If you just go to 9.00" thne you can use whatever gasket you want to gt your desired quench... also the super thin gaskets tend to have more problems... not that there's a lot, but there is more.
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  #33 (permalink)  
Old 06-02-2008, 01:33 PM
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Quote:
Originally Posted by ap72
Am I the only one who goes to "zero deck height" when I bother to get it decked? If you just go to 9.00" thne you can use whatever gasket you want to gt your desired quench... also the super thin gaskets tend to have more problems... not that there's a lot, but there is more.
I just like to leave a little wiggle room for next time.......




tom
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  #34 (permalink)  
Old 06-02-2008, 02:43 PM
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Quote:
Originally Posted by F-BIRD'88
So the catalog is correct. My motor was built with these pistons well over 10 years ago.
Looks like the spec on the recent hyper H345NP pistons has changed.
Do yours have the coated skirts? Mine did not. Had to replace one to repair that motor. Thats why I had to measure mine.
Thanks for the update Tom
They are coated, hence the "C" in the H345NCP (and other SP piston part #s).

tom
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  #35 (permalink)  
Old 06-02-2008, 07:13 PM
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Quote:
Originally Posted by F-BIRD'88
1. This is a dyno and on the street real deal proven combination........
Keep it simple.
I agree with almost all of that. The only thing I wouldn't recommend is millng quite so much off the heads. You would be horsepower and reliability ahead if you straighten the decks enough to improve the quench. I'd be leery of using a steel shim head gasket without machining both mating surfaces. This is based on 25 yrs. of seeing what can happen when that isn't done. By taking some off the heads and deck you are accomplishing both improving quench and ensuring good gasket sealing, along with increasing the compression ratio.

BTW, I'm not a big fan of steel shim gaskets.

tom
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  #36 (permalink)  
Old 06-02-2008, 10:41 PM
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Thanks guys

I honestly appreciate all of the great help with this build. If you examine my track record, I have not the excellence nor knowledge nor experience to make this a success on my own.

You men are doing a great service to everyone in need of honest, well thought out help. I can't thank you enough.
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