What roller rockers for my setup???
What roller rockers for my setup??? Ok i'm new to some of this, but i'm doing a head cam/swap. I have a 230/233 comp cam. I'm then just upgrading my heads from 853's to 243's with sodium valves and dual springs. What roller rockers should I use here and what will they benefit me? I was told by a guy at work they will make it ride smoother and extra power?
Most people are going to tell you that the stock rockers are the best for you. Power gains will be minimal at best. The stockers are light on the nose where many aftermarkets are not.
Don't think they will make the valvetrain any quieter either.
The main reason I would go with aftermarkets in your situation is to ensure the stock ones don't come apart and spill the needle bearings. Some folks have had this prob, but I don't think it is a widespread problem. You can send your stockers off to Harland Sharp and they will rebuild them so they can't spill the bearings.
Don't think they will make the valvetrain any quieter either.
The main reason I would go with aftermarkets in your situation is to ensure the stock ones don't come apart and spill the needle bearings. Some folks have had this prob, but I don't think it is a widespread problem. You can send your stockers off to Harland Sharp and they will rebuild them so they can't spill the bearings.
Your friend is kinda correct, roller rockers can improve power when using a greater ratio roller than stock, 1.7. Also, reduced friction on the valve stem is believed to reduce valve guide wear, (side load is less). Regardless, increased ratio rockers are benefitial to stock & mild cams due to increased valve lift. I'm not of the opinion that a swap to a roller type of the same 1.7 ratio, adds any power. Increased ratio rockers are not for larger cams like yours & actually can reduce power & damage the valve train. So, if you choose to go with roller rockers, stay w/ a 1.7 rocker. I agree w/ bluehawk2, stockers are fine & they could be sent to Harland Sharp for an upgrade if they are a concern. Good-luck
