Arias Forged Pistons B18C5 9.9:1 81mm STD 87.2mm Stroke 137.9mm Rod

(1 customer review)



In stock (can be backordered)

In stock (can be backordered)

SKU: A3310213 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 276 g
Shipping Weight (Dimensional) 5.0000
Part Type Pistons
Make Honda / Acura
Vehicle Model Integra Type R
Vehicle Group Integra Type-R 97-01 DC2
Engine B18C5
Compression Ratio 9.9:1
Bore Diameter 81mm
Pin Size 0.827″ / 21mm
Included Ring Set T12810, S128100, O30810
Included Pin Locks 827×063 SWL
Included Pin 827-2250-20CP1C
Head cc 42.7 cc
Face Type Flat
Dome cc -3.14 cc
Compression Height 1.180″ / 30mm
Manufacturer Arias Pistons
Stroke 87.2mm
Skirt Type Full Round
Rod Length 5.430″ / 137.9mm
Piston Material 2618
Compression Ratio Gasket Thickness .028″
Compression Ratio Range 9.0:1 – 10.0:1
Big End Width Standard Bore
Bore Oversize Standard Bore
Engine Head B18C5
Rod Length Oversize Standard Length
Carb Legal Unspecified
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 8 lbs
Shipping Dimensions 12 × 12 × 8 in

Arias Pistons


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.

1 review for Arias Forged Pistons B18C5 9.9:1 81mm STD 87.2mm Stroke 137.9mm Rod

  1. Anonymous (verified owner)

    Very helpful

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