Melling Oils Pumps Compared - Hemi Truck Club
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Old 05-02-2019, 09:07 PM   #1
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Melling Oils Pumps Compared

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

2003 Dodge Ram 5.7 hemi, RCSB, lowered McGaughys 2/4, Centerlines, Bilsteins,Stainless Longtube Headers, Superchips 91 tune, CAI, Magnaflow,190 Tstat, Transgo HD-2 w/resistor wired in plus Sonnax line pressure booster
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Old 05-03-2019, 04:09 PM   #2
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Sounds about right to me.
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Old 05-03-2019, 04:18 PM   #3
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Good information!
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

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Old 06-20-2019, 09:14 PM   #4
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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.
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