FREE SHIPPING* On Orders Over $199 within 48 States
Shop in Confidence with Our Price Protection Program!
The 1% Award · Auto Parts Store of the Year 2026
Clear Car Save Vehicle
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L
  • IAG 13 - 20 BRZ/FR - S/GT86 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP | IAG - ENG - S686L - JDMuscleFabricationIAG-ENG-S686L

IAG Performance

IAG Performance Be the first one to review

IAG 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP

Fits: 13-20 BRZ/FR-S/GT86

$5,24999
Earn $104.99 In JDMuscle Rewards!
Low stock! Only 1 left
Financing available starting $164.06 /month and as low as 0% APR.

Auto Parts Store of the Year 2026

IAG Performance IAG 600 FA20 Subaru Short Block | 10.5:1 Compression Ratio - 600 BHP
Fits: 13-20 BRZ/FR-S/GT86
Be the first one to review

Estimated Shipping Widget will be displayed here!

Profile Avatar

Talk to an Enthusiast

Verify Fitment & Product Recommendations

M-F 8:30AM - 5:00PM

(866) 833-3536 Email

Fitment

  • 2013-2016 Scion | FR-S
  • 2017-2020 Toyota | 86
  • 2013-2020 Subaru | BRZ

Description

The IAG 600 Short Block is designed for stock or modified FA20 Subaru BRZs that need a stronger short block to support increased cylinder pressures created by modifications, or aftermarket turbo kits. The IAG 600 short block features IAG Spec H-Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by aftermarket turbochargers or increased boost which the OEM rods and pistons found in the stock short blocks cannot support reliably.

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

Limited Manufacturer Warranty

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov