Arias Forged Pistons Mitsubishi Eclipse Talon 1G DSM 4G63T 6 Bolt 21mm Pin 85.50mm -10.25 cc 8.6:1



This will be a special order for you.

This will be a special order for you.

SKU: A3420301 Categories: , ,


Arias Pistons makes several part numbers for this application with a variety of different bore sizes, and compression ratios options. Please use the drop-down menus above to select the correct application for your build.

ARIAS PISTONS has been the leader in compact piston technology since our beginnings. While piston suppliers at that time focused mostly on larger-bore domestic V-8’s, ARIAS had the foresight to cater to the smaller-bore, higher-revving, hotter-running imports & domestic compacts.

Today, ARIAS maintains an unmatched advantage in the import and domestic compact market. Over three decades of research and development have led to the ARIAS Sport Compact shelf line.

  • Hi-tensile forged, not cast, billet material (4032 or 2618).
  • CNC machined working surfaces.
  • Optimized crowns for efficient combustion.
  • Diamond-turned ellipsoidal skirt profile.
  • All motor/Nitrous pistons feature lightweight, high strength construction.
  • Turbo/Nitrous pistons feature durable, heavy-duty design.


Item Weight 347 g
Shipping Weight (Dimensional) 5.0000
Part Type Pistons
Make Mitsubishi
Vehicle Model Eagle Talon / Eclipse / 1G DSM
Vehicle Group Eclipse GST FWD 90-94 1G, Eclipse GSX AWD 90-94 1G, Galant VR-4 91-92
Engine 4G63T (6-Bolt)
Compression Ratio 8.6:1
Bore Diameter 85.5mm
Pin Size 0.827″ / 21mm
Included Ring Set T12855, S12855, O30855
Included Pin 827-2250-20CP1C
Head cc 47 cc
Face Type Dish
Dome cc -10.25 cc
Compression Height 1.375″ / 34.9mm
Manufacturer Arias Pistons
Stroke 88mm
Skirt Type Full Round
Rod Length 5.900″ / 150mm
Piston Material 2618
Compression Ratio Range 8.0:1 – 9.0:1
Bore Oversize 0.020″ / 0.5mm
Engine Head 4G63T (6-Bolt)
Rod Length Oversize Standard Length
Carb Legal No
Stroke Oversize Standard
Wrist Pin Dimensions .827″ x 2.250″ x .200″
Pin Material 5100 Chrome Moly Steel
Product Flags N/A

Additional information

Shipping Weight 5 lbs
Part Type



Arias Pistons

Car Make



Arias Pistons

ARIAS PISTONS was brought to life in 1969 as a manufacturer and supplier of high performance, high quality pistons and related hardware. Arias is a leader in Sport Compact and Domestic high performance pistons.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.