Actually you need CUSTOM ones. the ports on the LS1 are symetrical, and not unlike any other small block. the center two on a samll block are joined, but the LS1 heads are equally spaced. i looked into using 98+ headers on my 68 when i tried this swap, but all the custom fabbing was too much for me. i found i needed custom headers, custom engine mounts, custom wiring, maybe a custom oil pan, custom air intake, a new T56 (i had a LT1 t56) i would have had to move my wiper motor for coil cover clearence, ect..... But yeah, you need new custom headers.
1968 RS/SS Camaro w/ 94 vette LT-1 and T56 six speed, Cal-Tracs, Baer 12" crossdrilled brakes 17" rims, ect....
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My 68 with LT1 and T56</A>