I bought an rst the other week to break for spares. it has a power engineering cam i believe and a big valve head with ported inlet as i can see so far but wondering how i tell whether the block is 1.9

what bore size is the block, something like 80.5 but with a longer stroke crank??

 

its on the lines of an 83.5 bore with 18 cvh crank pal.

 

ive got the power engineering system two, on my rs turbo, top of my head think its got a 88mm stroke crankshaft, 83mm pistons & the blocks with steel liners, also the cam should be a SX 428T .

 

well ive got the cam but found out its a std bore 1.6, but its got a mint crank so all is not lost for £10.
tech tune 2 head mean anything to anyone,
and its got the power engineering cam,
what lifters should i buy to replace the old ones?