6.1 Oil pump upgrade on 5.7 hemi?
I'll be installing a KRC210 cam into my 5.7 hemi very soon. I have pretty much everything I need, but I read that some people install a 6.1 pump while they have it opened up?
Just wondering if the 6.1 is worthwhile or should I even bother installing a new 5.7 oil pump while I'm at it? I'm definitely installing a new timing set with 80k miles on the engine. |
I dont know if there's any flow differences between the two? I know the 5.7L Oil pump is a low flow at idle...4-6psi low which is why I have a pronounced Hemi tick. Once I rev engine up to 1krpms, the oil pressure increases to about 20psi and noise goes away.
If the 6.1L pump flows slightly more then I would say yeah go for it! |
oil pump or water pump..it's easier to change water pump during cam install than oil pump...
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Originally Posted by dirtydog
(Post 2796127)
I dont know if there's any flow differences between the two? I know the 5.7L Oil pump is a low flow at idle...4-6psi low which is why I have a pronounced Hemi tick. Once I rev engine up to 1krpms, the oil pressure increases to about 20psi and noise goes away.
If the 6.1L pump flows slightly more then I would say yeah go for it! The 6.1 oil pump is mentioned as a suggested part in this list: http://tinyurl.com/d5akcqo I also read that they upgraded the oil pump on the newer 5.7 hemis. I would love to not spend the extra dough and add extra steps, but I also don't want to skip preventative maintenance just to be cheap and lazy :)
Originally Posted by chefred112
(Post 2796131)
oil pump or water pump..it's easier to change water pump during cam install than oil pump...
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I have seen a few hemi aftermarket places that recommend them as an upgrade when you swap cams (to go along with the springs). Cheaper to buy a Mopar off the shelf from a parts house then say from Inertia or someone (about $50+ shipping versus $70 plus shipping).
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Oil pump requires dropping the pan. Fitment is the same but not worth it IMO
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