4G63 Aeroflow Engine Components.
The Mitsubishi 4G63 has powered some seriously quick street, drag and circuit cars—and Aeroflow Performance has just made building one a whole lot easier.
Aeroflow has expanded its engine range with new cast-iron 4G63 and 4G64 engine blocks, three billet crankshaft options and two forged I-beam conrod sets.
Whether you’re replacing a damaged factory block, starting a fresh performance build or putting together a stroker combination, we can now help supply the core Aeroflow hardware to get your build underway.
Aeroflow 4G63 & 4G64 Cast-Iron Engine Blocks
Aeroflow’s new bare cast-iron engine blocks give Mitsubishi engine builders a fresh foundation without needing to begin with an old or previously modified factory block.
Both options include a forged one-piece main-cap girdle and are available in either 4G63 or 4G64 configuration.
Mitsubishi 4G63 Cast-Iron Block
The 4G63 block is the natural starting point for a traditional 2.0L build or a performance stroker combination.
- 85mm bore
- Cast-iron construction
- Forged one-piece main-cap girdle
- SKU: AF96-1025
Mitsubishi 4G64 Cast-Iron Block
The 4G64 option features a larger 86.5mm bore, giving engine builders another foundation for increased-capacity Mitsubishi combinations.
- 86.5mm bore
- Cast-iron construction
- Forged one-piece main-cap girdle
- SKU: AF96-1026
Aeroflow 4G63 Billet Crankshafts
Aeroflow has also released three billet crankshafts for Mitsubishi 4G63 engine builds.
All three options feature 57mm main journals, 45mm crank pins and are designed to suit the Mitsubishi 4G63 seven-bolt flywheel pattern.
88mm Stroke – 2.0L
The 88mm crankshaft retains the traditional 4G63 stroke and is suited to builders wanting to stay with a responsive 2.0L-style combination.
- 88mm stroke
- 57mm mains
- 45mm pins
- Seven-bolt flywheel pattern
- SKU: AF4465-3464-5895
94mm Stroke – 2.2L
The 94mm option provides a middle ground for anyone wanting increased capacity without stepping all the way up to the longest-stroke combination.
- 94mm stroke
- 57mm mains
- 45mm pins
- Seven-bolt flywheel pattern
- SKU: AF4465-3700-5895
100mm Stroke – 2.3L
For builders chasing the largest-capacity option in the range, the 100mm crankshaft provides the foundation for a 2.3L-style stroker combination.
- 100mm stroke
- 57mm mains
- 45mm pins
- Seven-bolt flywheel pattern
- SKU: AF4465-3937-5895
Aeroflow Forged 4G63 Conrods
Completing the rotating assembly, Aeroflow also offers two forged I-beam conrod sets for Mitsubishi 4G63 builds.
Both options feature a 1.890-inch big-end journal, .866-inch gudgeon pin and ARP 3/8-inch bolts.
5.906-Inch Forged I-Beam Conrods
- 5.906-inch length
- 1.890-inch journal
- .866-inch pin
- ARP 3/8-inch bolts
- SKU: AF5365-5906-1890
6.141-Inch Forged I-Beam Conrods
- 6.141-inch length
- 1.890-inch journal
- .866-inch pin
- ARP 3/8-inch bolts
- SKU: AF5365-6141-1890
The correct conrod length will depend on your chosen block, crankshaft, pistons and desired rod-to-stroke combination.
Which Combination Should You Choose?
The best combination will depend on how the vehicle will be used, your turbo selection, desired powerband and the rest of your engine package.
The 88mm crank is the straightforward choice for a conventional 2.0L-style build. The 94mm option provides additional capacity while sitting between the standard-stroke and larger stroker combinations. The 100mm option is aimed at builders wanting the greatest capacity and a stronger focus on torque.
Final engine capacity will depend on the selected block, finished bore size and complete rotating assembly.
Before You Order
These are serious engine components, and the complete combination needs to be planned correctly.
Speak with your engine builder before ordering to confirm the required block, crankshaft, pistons, connecting rods, clearances and machining. Bare engine blocks will require inspection and preparation by a suitably experienced engine machine shop before assembly.
Building a 4G63 or 4G64?
Talk to the Stealth Ride team about your planned combination. We can help supply the Aeroflow engine hardware and supporting components needed to bring your Mitsubishi build together.
