2TONE_93GT

iTrader: (3)

427's are easy to ID by the cross-bolted mains, and if there is a oil gallery rib just above the oil pan (forget which side) it's a side-oiler.

If the date code of the block is 1965 or earlier than it can't be a 428, it's a 390 or 352.

428's are externally balanced so the flywheel will have a balance counterweight on it. 390 and 352 are internally balanced, so you have to pull the pan to take a look at the crank, and while you're there you can measure the bore.

That ought to be enough to tell whether you're looking at a 428 or not If it's a 410-390-352, they're probably all the same value (410 may be more).

imported_Brandon

in 66 and 67 it was called the 7.0L in Galaxies and T-birds.

Also uses a cast iron crank instad of steel like the 427 and was offered in 335, 340, 345 and 360HP versions from 10.5:1 to 10.8:1 compression.

Also availible was the Cobra Jet, Super Cobra Jet and Police Interceptor. The PI used the iron block and heads but had an Aluminum intake and had a beefier bottom end.