My advice is use the R154, it will take alot more abuse before it goes bang!
Also, if you intend on installing a boost controller, do it now as its a pain in the ass to get to the rear turbo once the motor is in the car, though its not impossible!
I'd prolly also polish whatever you intend on polishing now The 1JZ is a great motor man, and should be f*cken sweet in this once done!
Cheers,
Jase
Bookmarks