330 tappets and rollers

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grahamdelooze
Posts: 58
Joined: Mon Nov 01, 2004 4:21 pm
Location: England

330 tappets and rollers

Post by grahamdelooze »

does anyone know if the rollers are hardened through or just case hardened. mine had some marks on so i ground 0.005" under. now i fancy going way under and changing the tappet screws to porsche type for a better foot on the valve tips.
330 GT 6159
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