[oldmanram]

I thought I would pass this on for those a little confused by all the different
Melling Oil Pumps..... I was !! So I emailed Melling asking for some clarification on the different oil pumps they offer for the 5.7 and 6.1 Hemi engines . This is the response :

Gentlemen PLEASE : explain once and for all the differences between the Melling
M342: stock 5.7 pump
M362: same as the M342 with the exception of the bypass spring, the M362 has a higher bypass setting than the M342
M10342: performance version of the M342, standard volume high pressure pump, hard coat anodized body, will include 2 optional bypass springs.
M10342BR: same as the M10342 but has a billet steel rotor set.

I also asked for a recommendation :

I am building a street 392 stroker from a 5.7 Hemi , expecting to see 6300 rpm .What pump do you recommend ??
Answer: M10342, unless it will be supercharged, if so use the M10342BR

 

[Ghost03hemi]

Sounds about right to me. :thumb:

 

[Redtruck-VA]

Good information!

 

[Diablothunder]

For what its worth...I've been running the Melling 10342 in my 5.7 based stroker (400ci) for several years. Pretty much 45 psi all the time.
🤠👍

 

[oldmanram]

For what its worth...I've been running the Melling 10342 in my 5.7 based stroker (400ci) for several years. Pretty much 45 psi all the time.
🤠👍

Diablo , Do you remember what spring you used ?
If you didn't change it , it would have been the 50psi spring

 

[Harleyc04]

if you're interested in more flow/pressure, with a little bit of fiddling around i got a stock 6.2 pump to work on my motor. with the VVT motors it is a direct swap but they can be made to work on the older blocks, and they increase flow/pressure substantially. plus the 6.2 oil pump is cheaper than any of the aftermarket pumps.

 

[Ghost03hemi]

Wonder if a high flowing oil pump would help with the "Hemi Tick"?

 

[Harleyc04]

Wonder if a high flowing oil pump would help with the "Hemi Tick"?

I don't see how it could hurt