1956 Chrysler 354 Hemi heads for car

https://www.ebay.com/itm/387894356269?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D285676%2C285774%2C285598%26meid%3Db1c1d748cd5d485cbb7bc40424310f6b%26pid%3D101875%26rk%3D2%26rkt%3D4%26sd%3D156800266461%26itm%3D387894356269%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DSimVIDwebV3WithCPCExpansionEmbeddingSearchQuerySemanticBroadMatchSingularityRecallReplaceKnnV4WithVectorDbNsOptHotPlRecallCIICentroidCoviewCPCAutoVisionMM%26brand%3DChrysler&_trksid=p2332490.c101875.m1851&itmprp=cksum%3A387894356269b1c1d748cd5d485cbb7bc40424310f6b%7Cenc%3AAQAKAAABgO7WQzztPwW6PkgoYfQkPoIk8LPijUJeRSIaSsdtf4xtPJNwHvvrPnsdhIFEZLwP5X%252F0pqGkKRfiBPA92WLZSaWJeHJ6aHHpPmFFOZkbwiXNGDpreUeBHj2ZrDtFEH2%252BiQkXd3wmf1Lc3IzYTN6YW7me6RU%252FP2u4AIJjtMZpnUzn4fhxgZX8ivT%252BPzOsmjM85UZKRXWhewCBubf%252BsyilGjbZ8OmsX%252FMc04d%252Ff8FfSKtFxEfCxw%252FgUAVOm2h0ukxZHmtHf2OADYzpg0MEAfY2gcYHS1em%252B6I7SGsCaOpckXeg5ULs3OwB4ewrRXhTay8PfWV25G23ed8rwHye2Vpvs5npLmf81n2ChveM7qh0LYLOy37dXdf856fsWV0RIADcMC3QxypsNSr1hAN%252FPzBi24z6yJjqs0CTnxyA86dMdq%252FMlvklXw3bXBhYSQSFJ6IO5EaBypjonOkx3%252B5OvK185RrQG4qnzrvzYiEwuG8CdmEw8MSyrf%252BKhBvU71uTV9kEow%253D%253D%7Campid%3APL_CLK%7Cclp%3A2332490&epid=1785261058&itmmeta=01JVAM9TY9RABZWF7PYCK8D4FW There are a few sets on ebay. One set with valve covers and exhaust manifolds as well. The pictures are not the greatest for the crossover you desire. This set does have the porting. I have no idea what they are worth but they are all in the $700 to $900 range.