K20a2/ k20a3 blocks Is there any main dif. between both of these. I'm talking just the blocks. As in would a K20a2 block become a better choice in sleeving above the A3? The A3 are so affordable to come by so I just planned to know. Exceptional customer service all https://rylancsomq.newbigblog.com/38785129/jdm-mitsubishi-turbo-4g63t-engine-for-sale-things-to-know-before-you-buy