View Full Version : 350-327 or 302???


rolling-robert
Jan 12th, 06, 11:29 AM
it says GM3970010.

what is it? how can i tell what ci it is?

Vintage 68
Jan 12th, 06, 11:35 AM
it says GM3970010.

what is it?

how can i tell what ci it is?

It's a 4.0" bore block...

Maybe by the suffix code - if it hasn't been rebuilt/modified...
By the crank flange...

River
Jan 12th, 06, 11:43 AM
1968 3970010 327 - - 2 A
1969-79 3970010 350 185 370 2 or 4 car, truck, Vette

185 low HP 370 high HP 2 or four bolt main