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You can use LA head gaskets on a Magnum block, very minor differences.

I had this same exact problem with a Magnum block hooked up to an old 904 in my Duster. I think all the pre-Magnum transmissions have the starter located differently, or maybe the 904 I got was made for an early A-body (I'm not totally sure of the year). I couldn't try an older "jumbo" starter...

Good to know, thanks. Like with a lot of things there's a lot more to it than what's on the surface. Smaller quantity goods tend to be a little bit pricier here in U.S. but that's just the companies making up for production costs, they aren't taxed any differently based on size. The main...

Might be the surplus of American oil, first time in history the U.S. is producing more oil than it needs and the oil companies don't know what to do besides keep processing and selling more of it. Which isn't a great idea since there are still leaking pipelines and offshore rigs that need to be...

Wow, fuel prices here are literally one-third of that, fuel station near my house has 91-octane (RON+MON)/2 for I think $2.25/gallon? Even still I'm happy my engine will only be 9:1 compression I should be able to run 85-octane regular gas or at the very least 87-octane midgrade. Too bad I...

I don't think it needs a stroker kit based on what you're doing. Sure it would be nice to have all that torque but you're also throwing gas mileage out the window, 5.2L up to 6.4L. Kind of nice to have in a grocery getter especially with European fuel prices, JMO

OK.

I'm running external oil feed for the shaft rockers which I will be testing different restrictor sizes so there isn't too much oil up top. I actually grabbed some stock LA valve covers I'm going to cut the tops off of so I can watch the rockers while I prime the oil pump and turn the engine...

Why?

That stinks, I would try running hollow pushrods if your lifters have provisions to feed oil to them, that would get more oil at the pushrod-rocker mating point at least.

Sounds about right however you're running a flat-tappet cam, hydraulic roller lifters need different preload to work correctly. I know the stock rockers are borderline but I'm hoping the oil feed through the hollow pushrods will help keep them from punching through; with the stock LA oiling...

Ideally that's what I would do but school is starting back up so I can't work as many hours at my part-time job; if I waited until I had money for adjustable rockers it would take another 2+ months to get this thing running especially since there aren't many decent budget-minded choices when it...

I'm running a 5.9L Magnum short block with Edelbrock RPM heads for an LA engine with a custom-grind Racer Brown hydraulic roller cam. I'm using the stock roller lifters which the cam grinder (Jim) gave the OK. Initially I'll be using factory stamped LA shaft rockers but with .548" max lift on...

I'm trying to figure this out as well I have a thread in the SBM sub-forum... I'm using external oiling off the oil pressure sending port at the back of the block which is constant full pressure feed not timed like on a stock LA.

I thought I read the stock Magnum intake doesn't fit under an A-body hood...? It is fairly tall

Something to note, my 1988 Chrysler Fifth Avenue specified 4 quarts for the 318's oil, it definitely read "FULL" with only that much in it... did they change the pans on the later pass-car LA engines or just change the dipstick to read lower, perhaps to reduce windage? I'm running a windage...

Hey guys, so I'm doing the same thing with my 5.9 build using a 360 LA car pan... I filled up the pan with 5 quarts of water to get an idea of how much that is and it seems to sit pretty high in the pan, is that correct? I suppose when the engine is running and the oil is circulating the level...

I think you're on the right track with the transmission losing efficiency, there are people running much bigger cams than yours who are also getting better MPG but they're usually running taller gears with a 904 auto or some type of manual trans. I personally was able to get 17 MPG on a long...

Nice going with the Magnum swap, with the EFI you should definitely see some MPG improvements even including a cam and EQ heads (current route I'm going for with a 5.9L in my Duster but it'll be carb'd). @mgoblue9798 that was the 1st-gen Dak right? Those things are tiny compared to a '94-02...

I'm a "young gun" and it was hellish for me, spent 6 hours the first day getting everything disconnected from the engine since the last person who drove the truck must have mobbed through a muddy field in a fit of rage. It then rained that night and the next morning I had to work in a giant 4"...

I got a 5.9 short block from a local pull-and-pay for $125, didn't need the heads since I already had some as well as an air-gap carb intake. I couldn't check the mileage since it was a 2001 Ram 1500 with the digital odometer and the wiring was trashed but the inside looks fantastic; no sludge...

Whatever works, and IMO far less "offensive" than the other way around (Chevy in a Mopar). I think it's awesome you guys are keeping a Mopar engine on a budget and saving money on the car instead, actually pretty brilliant when you think about it... at the end of the day it doesn't really...

I have Classic Chambered PowerSticks on my Duster now but those are on the loud side and have a very raspy, open sound... I'm young so my go-to "quiet" muffler is the Dynomax UltraFlo, I think the Super Turbos are too quiet lol. My cousin's 440 '72 Polara had UltraFlos and they were perfect, I...

I think keeping the 413 and tuning it up really well (carb, ignition) should get highway mileage up into the high teens. Also going to larger wheels and tires will bump up your gearing a bit, 3.21 is just a hair on the short side for high-speed road tripping IMO. It's a tough call with the...

I figure if I'm going with another engine it might as well be a 5.9L. 5.2s are cheaper and more plentiful around here but not by much and I'd rather have the extra torque than fuel economy. My Duster is more of a weekend-warrior road-race type build fyi. I have a set of Hughes 1110 springs...

Cool thx guys, @66jim how much did it cost for a regrind? I'm looking at this cam from Lunati: Voodoo Retro-Fit Hydraulic Roller Cam - Chrysler 273-360 270/279 - Lunati Power I think their Voodoo roller line is pretty new, like released less than a year ago... I'm looking at them for now as...

So originally I was planning to rebuild the 1970 318 I pulled out of my Duster just to get it back on the road but in light of the fact that I have a 5.7L Hemi I plan to swap in the car later I decided to take the least-cost approach to getting my Duster running again by just getting a used...

That would be awesome, pretty much any older car or truck with a decent running modern turbodiesel would be awesome lol. It would be super cool with a C-body because normally the only way to make them really move is with a big block and then you average 12 MPG; top speed would be lower with a...

Sorry maybe should have said "big new Chrysler 300" lol... my parents just got a 2014 and it's almost as fast as their 2009 with the 5.7 Hemi and 5-speed POS Mercedes trans. The awesome thing is that new 8-speed trans has such a wide ratio spread you don't need any more than 3.08 rear gears to...

I think Magnum 3.9L is very doable, any issues would be the same as a 5.2 or 5.9 swap, except for the mounts if they are different (are they?). What I want to do is swap a 3.6L Pentastar and 8-speed trans; 292 HP and 30 MPG hwy in a big ol' Chrysler 300, who knows what it could do in a little...