Super Six install pics
Matt, Standard slant six cam is 232-degree duration.
That is the intake duration on the factory cam in the '60-'65 170 and the '60-'64 225. Exhaust duration was 228°, overlap was 8°, and lift was 0.375".
The '65-'70 225, the '66-'69 170, and the '70 198 got a cam with 240° intake, 236° exhaust, 16° overlap, and 0.395" lift.
Export 2bbl slant-6s starting in '67, marine slant-6s, and all roadgoing and industrial '71-'80 slant-6s (except the small production run of hydraulic-lifter engines in '78) got the 244° intake, 244° exhaust, 26° overlap, and 0.414"/0.405" lift.
