The pistons from Diamond Pistons are suitable for use on the street as well as at the drag strip. Domestic engines with high-compression, forced induction, or nitrous-fed engines are designed and tested for high-stresses. These forged aluminium pistons are precisely built for your engine to produce the performance you need, and they are engineered with lifespan, reliability, and strength in mind.

Product Specifications Details
Item Number 31670-8
Engine Make Ford
Bore 4.030
Stroke 4.000
Rod 6.000
Comp Height 1.190
Weight 443
Pin .927 x 2.750
CC -3.5cc
Comp Ratio 10.5
Cylinder Head Chamber CC 72
Ring Thickness 1/16 x 1/16 x 3/16
VP Intake Depth 0.210
VP Exhaust Depth 0.000
Cylinders 8
Barcode ID 686162212750
Class DIA-A-PSSK
Product Relations Details
Product Line Small Block Ford Flat Top
Pins Included Y
Pin Part# G9272750155
Rings Included Y
Ring Part# 09024030
Rails Included Y
Support Rail Part# 019000030-8
Locks Included Y
Lock Ring Part# 015104-32
Country of Origin USA

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