Currently I am in the process of actually building the block to hold some serious power. I chose LA Sleeve here in the USA as it’s local and a proven method to strengthen the cylinder walls. Dave over at LA sleeve rates this for 1200whp and up to 55psi of boost. They can also make this block a closed deck design and has been shown to hold 1600whp in other platforms. These were bored and honed to match the chosen Carillo pistons which are safe to 8000rpm as confirmed by Carillo via phone call when discussing limitations with an engineer.
The 4 10mm head studs have been modified to fit 11mm head studs and utilize the 11mm arp2000 head stud kit from an evo x 4B11.
Short block specs:
n20 factory cast block
n20 factory forged crank balanced and polished
LA Sleeve open performance sleeves - good for around 1000whp and 62psi per cylinder
Carillo rods and pistons
ACL Race main and connecting rod bearings (standard extra clearance to handle more power + higher revs + heavier weight oil. 5w-40 Motul is oil of choice)
Arp (201-4302) m50 10mm head studs to be used as main studs
Arp (207-4206) Evo X 4B11 11mm head studs
https://youtube.com/shorts/8mvkt1UF3...IfP8V-iO_xkDBh