Safe max RPM for bone stock 5.9 magnum

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I haven’t had the greatest luck with engines. The original stock stroke 360 in my ‘74 power wagon gave up the ghost at repeated 6,000 rpms. Lost a valve and chewed up a piston. LOL.

10 years ago on my barracuda’s stock 318 I rebuilt with just a ring and bearing job as far as short block goes, that threw a rod bearing, again repeated 6,000 rpm. The heads and top end were badass though, RHS heads prepped by IMM, Hughes rockers. Edelbrock Cam.

I shoulda resized the rods and used ARP bolts on that one.

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Over tightened the intake bolts (bush league mistake) loosened them up in reverse order one at a time and torqued them to the correct 144”lbs. It kept taking coolant :drama:

Hoping the intake gasket didn’t seal but after doing some reading I could have really messed some things up.

Anything I should check before pulling the intake back off?

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I put a Hughes AirGap on my car last winter when I swapped my cam and springs. I'm still running the LA TC cover and WP like you are, at least until I swap the EFI onto it (or pull it for a G3). At that time I will swap to the Magnum setup and fix the bypass issue for good.

I used a PRS-1060 fitting for the bypass fitting. I didn't like the one Edelbrock supplied as it was too long. The bypass hose was still a pain, ended up taking 3 as I kept cutting it wrong, but the last seems to work ok for the most part (still a slight leak). Your solution works well, just an FYI.

For the thermostat housing, I order a 555-53251. I didn't want the tall one, at least not until there is an AC pump that forces me to use it.

Hope you get past the coolant issue and don't have leaks. I can't tell if your picture of the dipstick is to show there isn't coolant in the pan, or that there is.
 
DionR said:
I put a Hughes AirGap on my car last winter when I swapped my cam and springs. I'm still running the LA TC cover and WP like you are, at least until I swap the EFI onto it (or pull it for a G3). At that time I will swap to the Magnum setup and fix the bypass issue for good.

I used a PRS-1060 fitting for the bypass fitting. I didn't like the one Edelbrock supplied as it was too long. The bypass hose was still a pain, ended up taking 3 as I kept cutting it wrong, but the last seems to work ok for the most part (still a slight leak). Your solution works well, just an FYI.

For the thermostat housing, I order a 555-53251. I didn't want the tall one, at least not until there is an AC pump that forces me to use it.

Hope you get past the coolant issue and don't have leaks. I can't tell if your picture of the dipstick is to show there isn't coolant in the pan, or that there is.
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I’m hoping it was just the intake gasket that didn’t seal (it was a jegs set they sent me for free because of the speedmaster intake debacle)
I have a felpro MS95392 set that hopefully seals it up.

lots of coolant in the oil pan!
 
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:realcrazy: I’m not sure what I was thinking using these gaskets. It’s fixed now. Hopefully the oil comes out clean eventually………
 
TT5.9mag said:
Yea the waters are muddy for sure. But I will continue to support MSD products, they have always been awesome for me.
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rumblefish360 said:
Wish I had the same experience as that. All but one have been absolutely **** bags of garbage.
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FWIW, a LOT of the 3rd-party-sold "MSD" stuff out there is bogus. Yes, the Chinese are making counterfeit MSD stuff. :BangHead::BangHead:

skep419 said:
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Bypass hose angle isn’t ideal :poke:
Paid $20 to get one of the ports opened up for my temp gauge. Also picked up a new water neck/thermostat because I guess they’re different also and the one that came with it was rusted pretty bad.
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If you have clearance and are willing to deal with a slightly crude-looking solution, it's easy: loop the hose. Instead of the short, direct bend, have it go out from the intake, up, then back and down. Buddy's Aspen was like that for a while and may still be. (Not visible, so he didn't care.)
 
Jarlaxle said:
FWIW, a LOT of the 3rd-party-sold "MSD" stuff out there is bogus. Yes, the Chinese are making counterfeit MSD stuff. :BangHead::BangHead:



If you have clearance and are willing to deal with a slightly crude-looking solution, it's easy: loop the hose. Instead of the short, direct bend, have it go out from the intake, up, then back and down. Buddy's Aspen was like that for a while and may still be. (Not visible, so he didn't care.)
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Down and dirty! But Effective!
 
@Jarlaxle Purchased from Summit and MSD direct, repaired by MSD direct, all garbage. Anytime or body gives me that 3rd party bullshit I loose screws.

Just thinking about it makes me want to have explosive diarrhea like when I drank my face off and ate under cooked chicken. Which is super pure mint sparkling shinny gold standing next to the FWIW CRAP **** people try and shovel up my fuckin ***.


OMGOSH, where is the toilet bowl!!!!
 
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