You need to buy the 3 core rubber inserts for the top and bottom rad mounts. Ames has a kit to convert 4 core to 3 core
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https://www.facebook.com/KauffmanRac...6873234225938/
KRE 461,310 CFM 85cc, KB pistons, Eagle rods, Ohio crank KRE custom HR236,Dougs ceramic,Edelbrock Pro Flo 4. Quick Performance 9".
552HP 594 TQ
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