As can be seen in v8man's post above, it seems that liner problems in the 3.5 tend to be only with the "Services blocks". ie type 8.
Regards Denis
1950 A40 Devon Hotrod with 5.0 twin turbo RV8.
EDIS8 wasted spark, Holley Injection.
Been as far as the Moon and back in 57 years of driving. Same Car, 5 engine upgrades !!!