340 Modifications

340mopar said
With a date code of 10-16-70 it could very well be a '71 low comp motor, this is probably the case being '71 model and not '70 model cars are being built at that date or later. This is assuming that it has not been touched by anyone.

Chuck

'71's had 10.5 to 1 compression also,they did'nt drop the compression till '72 model year....