yamato 302 compression reading

[geecee]

Hi!,calling from down under. Looking at two Yamato 302s and i need to know what is the acceptable compression readings for these engines. cheers,gray chandler.

[seanp3]

If the head has been shaved to Min cc's you should be seeing around 125 - 130 lbs psi

[geecee]

yamato comp data

Sean ,thanks for that, Hope to have some numbers this weekend. regards,gray chandler.

[Aussie Steve]

If it has not been CCed around 120

[geecee]

Yamato 302 chamber size

Steve ,what is the minimum chamber size ?. cheers,gray chandler.

[HydroKyle93R]

with 14mm plugs, 25.5 ci (417.870cc)

[geecee]

Thanks for that,appreciate the help.

[ZUL8TR]

combustion chamber volume

with 14mm plugs, 25.5 ci (417.870cc)

for 14 mm it is 25.5 cc not ci
for 18 mm it is 26cc