Short Blocks, Long Blocks & Heads

Price Price
Brand Brand


Subaru (OEM) Cylinder Head Casting (LH, Bare), 2008-2010 STi
Available For Order!

Subaru (OEM) Cylinder Head Casting (LH, Bare), 2008-2010 STi

$705.93

Subaru (OEM) Cylinder Head Casting (RH, Bare), 2008-2018 STi
Available For Order!

Subaru (OEM) Cylinder Head Casting (RH, Bare), 2008-2018 STi

$641.74

IAG Piston Wrist Pin Access Cover w/ Seals Kit, '04-'21 STi & '06-'14 WRX
Available For Order!

IAG Piston Wrist Pin Access Cover w/ Seals Kit, '04-'21 STi & '06-'14 WRX

$125.99

IAG Willall Billet Case Halves, 2004-2021 STi & 2006-2014 WRX
Available For Order!

IAG Willall Billet Case Halves, 2004-2021 STi & 2006-2014 WRX

$11,549.99

IAG Long Block Basic Installation Kit, 2008-2021 STi
Available For Order!

IAG Long Block Basic Installation Kit, 2008-2021 STi

$1,799.99

IAG Stage X Billet Short Block, 2002-2014 WRX & 2004-2021 STi
Available For Order!

IAG Stage X Billet Short Block, 2002-2014 WRX & 2004-2021 STi

$17,599.99

IAG Stage 3 Cylinder Heads (No Cams/Buckets, W25 Castings), '08-'18 STi
Available For Order!

IAG Stage 3 Cylinder Heads (No Cams/Buckets, W25 Castings), '08-'18 STi

$3,629.99

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves & S2 Cams (W25 Castings), '08-'18 STi
Available For Order!

IAG Stage 3 Cylinder Heads w/ +1mm GSC Valves & S2 Cams (W25 Castings), '08-'18 STi

$5,499.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (W25 Casting), '08-'18 STi
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (W25 Casting), '08-'18 STi

$6,299.99

IAG 750 EJ25 Closed Deck Case (No Bore/Hone w/ 11mm HSM), '04-'21 STi & '06-'14 WRX
Available For Order!

IAG 750 EJ25 Closed Deck Case (No Bore/Hone w/ 11mm HSM), '04-'21 STi & '06-'14 WRX

$2,199.99

IAG 750 EJ25 Closed Deck Case (w/ Bore/Hone w/ 11mm HSM), '04-'21 STi & '06-'14 WRX
Available For Order!

IAG 750 EJ25 Closed Deck Case (w/ Bore/Hone w/ 11mm HSM), '04-'21 STi & '06-'14 WRX

$2,549.99

IAG 950 EJ25 Closed Deck Case (No Bore/Hone / 14mm HSM, Fire-Lock), '04-'21 STi & '06-'14 WRX
Available For Order!

IAG 950 EJ25 Closed Deck Case (No Bore/Hone / 14mm HSM, Fire-Lock), '04-'21 STi & '06-'14 WRX

$2,649.99

IAG 950 EJ25 Closed Deck Case (w/ Bore/Hone / 14mm HSM, Fire-Lock), '04-'21 STi & '06-'14 WRX
Available For Order!

IAG 950 EJ25 Closed Deck Case (w/ Bore/Hone / 14mm HSM, Fire-Lock), '04-'21 STi & '06-'14 WRX

$2,999.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi

$5,799.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi

$7,499.99

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S3 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 1150 CNC Ported Drag W25 Cylinder Heads w/ GSC S3 Cam & Lifters, '08-'18 STi

$7,499.99

IAG 550 Street W25 Cylinder Heads (No Cams & Lifters), 2008-2018 STi
Available For Order!

IAG 550 Street W25 Cylinder Heads (No Cams & Lifters), 2008-2018 STi

$2,999.99

IAG 550 Street W25 Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 550 Street W25 Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi

$4,699.99

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads (No Cams & Lifters), '08-'18 STi
Available For Order!

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads (No Cams & Lifters), '08-'18 STi

$3,799.99

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 750 CNC Pocket Ported W25 Competition Cylinder Heads w/ GSC S1 Cam & Lifters, '08-'18 STi

$5,699.99

IAG 950 CNC Ported Race W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi
Available For Order!

IAG 950 CNC Ported Race W25 Cylinder Heads (No Cams & Lifters), '08-'18 STi

$4,599.99

IAG 950 CNC Ported Race W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi
Available For Order!

IAG 950 CNC Ported Race W25 Cylinder Heads w/ GSC S2 Cam & Lifters, '08-'18 STi

$6,299.99

IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S2 Camshafts, '08-'21 STi
Available For Order!

IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S2 Camshafts, '08-'21 STi

$17,499.99

IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts, '08-'21 STi
Available For Order!

IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads / GSC S3 Camshafts, '08-'21 STi

$17,499.99

IAG 550 Long Block Engine w/ IAG 550 Heads, 2008-2021 STi
Available For Order!

IAG 550 Long Block Engine w/ IAG 550 Heads, 2008-2021 STi

$9,499.99

IAG 750 Closed Deck Long Block Engine w/ IAG 750 Heads, 2008-2021 STi
Available For Order!

IAG 750 Closed Deck Long Block Engine w/ IAG 750 Heads, 2008-2021 STi

$11,799.99

IAG 950 Closed Deck Long Block Engine w/ IAG 950 Heads, 2008-2021 STi
Available For Order!

IAG 950 Closed Deck Long Block Engine w/ IAG 950 Heads, 2008-2021 STi

$12,999.99

IAG 950 EJ25 Closed Deck Short Block - 950 BHP, '04-'21 STi & '06-'14 WRX
Available For Order!

IAG 950 EJ25 Closed Deck Short Block - 950 BHP, '04-'21 STi & '06-'14 WRX

$5,999.99