Originally Posted by 89 Z28

Im not sure if im posting this correctly but i just bought an 89 z28 and im wondering what it has for a motor off the vin# it came with a 305 but some people are telling me it might be a 350 is there any codes on the motor somewhere where i will be able to tell what it is? Thanks Nathan

Originally Posted by MKCoconuts

Unless someone swapped the engine at some point, you have a 305. Only two engines with the RS was a V6 as the standard, 305 as a option. Casting number on the block would tell you, if I'm not mistaken. Only other way is to measure the damper. 305s used a 3.75" damper where else 350s used any where from 6-8".

I'm digging the red (metallic?) paint with the silver stripes. Defiantly sets it apart.