Every set is built to order. Please allow five weeks for it to ship.
Diamond Pistons forged piston kit for the Porsche 991 Turbo 3.8L, set of 6. ASF Machine orders these direct from Diamond for your build (not a stocked item). Diamond builds its sport compact pistons from forged 2618 aluminum, CNC-machines them, and pairs them with Trend Performance wrist pins.
Piston volume: -0.9cc; compression height: 1.325 in.
Stroke: 77.5mm; rod length: 5.433 in.
Ring set: 1.20 mm x 1.50 mm x 2.00 mm
Wrist pin: 0.9055 in. OD x 2.250 in. long
Valve pocket depth: 0.045 in. intake, 0.000 in. exhaust
Forging: inboard
Ring set and wrist pin retainers included (per Diamond)
Diamond part numbers:
39300-6: 102mm bore, 9.80:1 compression (per Diamond), ring set 09254016, wrist pin H90552250200C
Specs and fitment: Piston kit, set of 6. -0.9cc, 1.325 in. compression height. Fits Porsche 991 Turbo 3.8L. Ordered direct from Diamond Pistons; call 970-242-0919 to confirm fitment and lead time for your build.
