Big end rod width on 3.2/3.3?

[David]

According to Wayne's book, in 1986 Porsche changed the big end connecting rod width from 21.70-21.80mm to 21.85-21.90mm and they closed up rod sidewall clearance from .200-.350mm to .100-.200mm. Would it be safe to assume that a replacement rod for any 3.2/3.3 from 78 on should be the wider rod that closes the gap?

[Henry Schmidt]

If the side gap is too small, proper rod bearing oiling is impaired. That said if the factory reduced the gap, your assumption seems sound.