Arias Toyota 4.0L 1GR-FE, Bore 3.721, CH 1.280, Stroke 3.740, Rod 6.299, CR 10:1, Head 48.5cc (A3720511)

Arias Toyota 4.0L 1GR-FE, Bore 3.721, CH 1.280, Stroke 3.740, Rod 6.299, CR 10:1, Head 48.5cc (A3720511)

Toyota 1GR-FE Conrods and Arias Forged Pistons

Availability: In stock

Toyota 1GR-FE Conrod and Piston Deal

2003-present Toyota 4Runner, 2007-present Land Cruiser, 2005 to present Tacoma, 2005-2006 and 2010-present Tundra, 2007-present FJ Cruiser, and 2012-present Lexus GX 400

Arias Toyota 1GR-FE Piston 

All Arias Pistons are now Manufactured by CP-Carrillo in their ultra-modern facility in California USA. ARIAS pistons have over forty-three years of forged piston innovation that has set the standard for piston performance. Founded in the workshop and on the racetrack by Nick Arias Jr. in 1969, ARIAS PISTONS blends its unique experience, state-of-the-art equipment, engineering excellence and dedicated team to produce pistons that have forged a reputation for power!

  • Hi-tensile forged, not cast, billet material 2618
  • CNC machined working surfaces
  • Optimized crowns for efficient combustion
  • Diamond-turned ellipsoidal skirt profile
  • Performance street & track pistons feature lightweight, high strength construction
  • Heavy duty pistons feature durable design for turbos, blowers & nitrous
Part Number A372501 A372511
Make Toyota / Lexus Toyota / Lexus
Engine 1GR-FE 1GR-FE
Bore Diameter 94mm 94.5mm
Bore Oversize Standard +0.5mm
Stroke 95mm (Standard Stroke) 95mm (Standard Stroke)
Compression Ratio 10.0:1 10.0:1
Pin Size 0.866" / 22mm 0.866" / 22mm
Included Ring Set CPN-3701 CPN-3721
Included Pin Locks 866x063 SWL 866x063 SWL
Included Pin 866-2250-18CP1C 866-2250-18CP1C
Face Type Dish Dish
Dish cc 17.15 cc 17.15 cc
Compression Height 1.280" / 32.5mm 1.280" / 32.5mm
Brand Arias Pistons Arias Pistons
Skirt Type Full Round Full Round
Piston Material 2618 2618
Wrist Pin Wall Thickness 0.180" 0.180"
Wrist Pin Dimensions .866" x 2.250" x .180" .866" x 2.250" x .180"
Pin Material 5100 Chrome Moly Steel 5100 Chrome Moly Steel


Spool H-Beam Conrods with ARP2000 Bolts

These are a direct fit conrod for all Toyota 1GR-FE - 4L V6 engines.

These conrods feature:

  • High tensile 4340 forged steel
  • 2 Piece forging
  • Hardness of HRC36-42
  • Dowelled caps for precision alignment
  • X-RAY & Sonic tested
  • Quenching and heat treated
  • Shot peened
  • 100% Magnafluxed
  • Weight Matched Sets + - 1 gram
  • Vacuum degassed to remove impurities.


Carrillo Super-A Conrod with WMC bolts

These conrods are made to order by Carrillo and take 16 weeks

Connecting Rod Beam Style
Connecting Rod Length Center to Center (in.) 6.300 in.
Wrist Pin Style Floating
Pin End Bore Diameter 22.000mm
Big End Bore Diameter (in.) 2.3228 in.
Big End Width (in.) 0.820 in.
Pin End Width (in.) 0.820 in.
Connecting Rod Bolt Brand WMC
Connecting Rod Bolt Diameter 3/8 in.
Connecting Rod Bolt Material H-11 tool steel



More Information
Product Name Toyota 1GR-FE Conrods and Arias Forged Pistons

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