Possible Crank, Rod, and Piston Combos For Our Tall Deck Non-Hemi Predator Blocks

Possible Crank, Rod, and Piston Combos For Our Tall Deck Non-Hemi Predator Blocks

The following is a table of possible crank, rod, and piston combos for our tall deck non-hemi Predator style block. You can use the same math for any block as long as you have the correct deck height for the block that you are trying to use. We stock the 60mm stroke crank in the last two examples. 

 
DIMENSIONS
DISPLACEMENT
PISTON CROWN DISTANCE TO DECK AT TDC
58mm Stroke with Stock Piston and ARC 6771 Rod
70mm x 58mm = 223cc
0.006" in the hole
Block Deck Height
138.6mm
Piston Compression Height (W/ half pin bore)
23mm
Rod Length (center to center)
86.436mm
Effective Crank Throw (half of stroke)
29mm
59mm Stroke with Stock Piston and ARC 6770 Rod
70mm x 59mm = 227cc
0.006" in the hole
Block Deck Height
138.6mm
Piston Compression Height (W/ half pin bore)
23mm
Rod Length (center to center)
85.928mm
Effective Crank Throw (half of stroke)
29.50mm
60mm Stroke with Stock Piston and ARC 6269 Rod
70mm x 60mm = 231cc
0.057" in the hole
Block Deck Height
138.6mm
Piston Compression Height (W/ half pin bore)
23mm
Rod Length (center to center)
84.150mm
Effective Crank Throw (half of stroke)
30mm
60mm Stroke with Stock Piston and ARC 6271 Rod
70mm x 60mm = 231cc
0.047" in the hole
Block Deck Height
138.6mm
Piston Compression Height (W/ half pin bore)
23mm
Rod Length (center to center)
84.404mm
Effective Crank Throw (half of stroke)
30mm
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