Its a 97 LS overbored to 84mm b20z pistons on Ls rods ARP rod bolts,head studs. DId a minor p&p on head, port matched IM, crower Ls402 cams w/ Ti. valvetrain. All work was done by me including turbo kit, so far 10psi with OEM Integra Type R fuel Pump, FUel rail, injectors and a cheap 8:1 FMu...