DETAILS, FICTION AND 13B REW MOTOR FOR SALE

k20a2/ k20a3 blocks Is there any key dif. among these two. I'm conversing just the blocks. As in would a K20a2 block certainly be a better option in sleeving in excess of the A3? The A3 are so inexpensive to come back by so I just wished to know.I used to be on exactly the same circumstance and kinda unhappy that I should use my bigger milage stuff