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FE Technical Forum / Re: 428 crank or not?
« on: March 30, 2016, 06:51:25 PM »
I think I will stay with the 390, I coated the 410 block today with some LPS 3 today. I was looking at Keith Black site for some 410 pistons earlier today, and also check prices like $350 for a flywheel, for starters. I do have a question for you, on the KB site it states where the quench is on their flat, step, and dome pistons and for the circular dish like I have with the H304p's, it says no quench.
Where I am at now at .021 deck clearance, If I used the KB KB150 Step Dish with 20cc I would be at "0" deck clearance and at 9.28 SCR and 7.51 DCR. using a .041 head gasket. With my current piston, I am at SCR 9.94 and DCR is 8.03.
Piston sealed power H304P KB150
Piston dish CC 12 20
Compression HT 1.659 1.780
Bore 4.110 4.110
Deck Clr .021 0
Stroke 3.78 3.78
Rod 6.488 6.488
Head CC 69 69
Head gasket Thickness .027 .041
Head gasket Bore 4.250 4.4
Intake Duration 270 270
Exhaust Duration 280 280
LSA 110 110
ICL 108 108
ICA 63 63
SCR 9..94 9.28
DCR 8.03 7.51
So can someone explain the quench with a circular dish. I was all set now I am confused about whether I need to go with a step dish for the quench effect.
Where I am at now at .021 deck clearance, If I used the KB KB150 Step Dish with 20cc I would be at "0" deck clearance and at 9.28 SCR and 7.51 DCR. using a .041 head gasket. With my current piston, I am at SCR 9.94 and DCR is 8.03.
Piston sealed power H304P KB150
Piston dish CC 12 20
Compression HT 1.659 1.780
Bore 4.110 4.110
Deck Clr .021 0
Stroke 3.78 3.78
Rod 6.488 6.488
Head CC 69 69
Head gasket Thickness .027 .041
Head gasket Bore 4.250 4.4
Intake Duration 270 270
Exhaust Duration 280 280
LSA 110 110
ICL 108 108
ICA 63 63
SCR 9..94 9.28
DCR 8.03 7.51
So can someone explain the quench with a circular dish. I was all set now I am confused about whether I need to go with a step dish for the quench effect.