eta compression ratio ???

[exup]

Hi ,
can any one tell me what compression ratio either of these blocks are ?
or will i have to strip one and look at pistion cut outs , measure down bore to tell ??
1986 eng number 24583784

and
1988 eng number 76 eb 2268 6385

[Templ8e30]

They'll both be 10:1 ratio.

The earlier engines (pre august 85) had 11:1 but had weaker (slimmer) main bearing caps.

Cheers,

Iain T

[exup]

Thanks Ian, i ve just ot round to start porting my 731 head out to 325 valves , but as u said ages ago it takes a fair bit of time !, if i can find your mail addy will send u pics
Cheers 4 advice m8