Transplant a whole 2RZ "as is" to replace your 3RZ?
Use a 2RZ block to build up a new 3RZ using the 3RZ head and internals?
"If i saw a old dude with what appeared to be a cat over his mouth driving faster than me I'd stop driving fast." - Firdaddy
Line-X, ARE, Recaro, Team Voodoo, Husky, Lund, Optima, OMP, Aesthetic Finishers Inc.,Michelin