hi all, i have an import sti type r 1998 that has melted a piston & have been told that the block is now scrap. have been offered a p1 block with rods & pistons is this the same block as mine? there is no crank with the p1 block will i b able 2 use my original?

 

NO - you cannot use your MY97-97 (PHASE 1) Crank in a P1 (Phase 2) Block. Unless you want ot spend a fortune on machinign work.

Just buy a new Phase 2 Crank form Subaru. Costs about £400 all in.

Russell

 

400 brick thats kinda pricey for a crank?
what exactly is the difference between a "standard" and a P1 crank? If its still 2 litre then it can only be ballancing and tuffriding which should cost 100 quid max!

 

It is something to do with the layout of the bearings, A phase 1 block usually needs maching to fit the phase 2 crank

 

Phase 1 and phase 2 blocks have the thrust bearing in different locations, hence requires lots of machine work.

 

it isnt lots of machine work, but it is some.

if you are going to put in a later crank, I would advise going for an sti 9 crank, that is phase 2 like the P1 (no difference between P1 and any other phase 2) but it has cross drilled oil supplies so that each big end is fed by two mains.