Hypereutectic Speed Pro Pistons
Flattop w/ 2 reliefs(4.030 bore x 3.750 Stroke)
press or float pin, coated skirt
350 engines using a 400 SBC crank with 5.7" rods.
Pistons sold in sets of 8
Ring dimensions 5/64, 5/64, 3/16
Dome Shape; Flat top 2 valve reliefs
Compression dist 1.425
Deck Clearance .025
Skirt Clearance .0010
Compression Ratio for 58.0cc: 11.12
Compression Ratio for 64.0cc: 10.40
Compression Ratio for 68.0cc: 9.97
Compression Ratio for 72.0cc: 9.57
Compression Ratio for 76.0cc: 9.21
Call us for your Ring set. We have excellent prices on Hastings, Sealed Power and Perfect Circle.
NOTICE: If you require lower compression, check out our H859CP for a dished version of this piston.