- Dec 24, 2007
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hi i have a 96gt with a 97 cobra engine. i drove it for one season and spun a cam. i recently bought a set of comp cams s/c and nos cams. i plan on porting and polishing my heads and intake, building the lower half, and next season a supercherger. my question is, what should i port the heads and intake to, and should i stick with the cobras aluminum block or buy a new cast block. i would like to bore the cobra block to a 5.1L. will the cobra heads bolt up to the cast block.any imput would be greatly appreciated.