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When I pulled my rocker arm shaft to replace my intake manifold, I noticed one bolt on each side was longer than the others.
On the driver's side it was the 2nd bolt from the front and on the passenger's side it was the 3rd bolt from the front. I understand the different placement from one side to the other, because they are the same head just on opposing sides, but the real question, is there suppose to be one longer on either side or are they all normally the same length?
I searched here and in the couple different repair manuals I have, nothing was mentioned about the bolts to the rocker arm shaft.
The "longer" bolt goes in the hole that has the oil feed hole. The threads are recessed a little compared to the other three holes.
In the picture you can see how the hole is recessed.
I have read that it is not real benificial for just a normal daily driver, but it definately helps the higher performance engines.
I did not do it, but I am not against it if you all think it's worthwile doing on a stock engine (well, fairly stock that is).
On a stock engine it's kinda like chicken soup.....may not help, but it can't hurt.
My engine is a mild build including a high volume oil pump. I already had the jets so it was just a matter of sticking them in. For me it was a no-cost mod.
I'd rather have the oil going to the rod/main/cam bearings, than just flooding the rockers, even on a higher mile stock engine. Particularly when higher mile engines also tend to have the oil drains for the heads blocked at least partly with crud. No need to "store" 1-2 qts of oil in the valve covers everytime the engine is running........
On a stock engine it's kinda like chicken soup.....may not help, but it can't hurt.
My engine is a mild build including a high volume oil pump. I already had the jets so it was just a matter of sticking them in. For me it was a no-cost mod.
If I look around I might have the jets too
Originally Posted by Rogue_Wulff
I'd rather have the oil going to the rod/main/cam bearings, than just flooding the rockers, even on a higher mile stock engine. Particularly when higher mile engines also tend to have the oil drains for the heads blocked at least partly with crud. No need to "store" 1-2 qts of oil in the valve covers everytime the engine is running........
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