My 70 has a crate motor in it which uses a 75 block & heads. I have picked up a 69 factory 4 barrell that I want to rebuild and use instead. However I noticed the water pump inlet is on the opposite side of the motor. Will I have a problem using the harmonic balancer, water pump, acc. brackets, etc.. from the current motor on the 69 motor? Or should I just keep looking for a 1970 351W instead? Thanks.