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A few years back, I built a 383 for my Jigsaw Charger. Normally I would have just defaulted to a 440 but this was the original engine to the car so I thought that it would be cool to do. I found back then how hard it is to build a decent compression ratio in a short stroke engine. The 383 has a...

There have only been a few times that I have seen this but today I was helping a friend install an intake on his 5.9/408 and with the standard cork gaskets that sit on the front and rear walls, the holes in the heads for mounting the intake were not in alignment. The intake is aluminum and it...

I've heard that the Magnum valve covers can be fitted to LA series heads but I don't see how that is possible. A thread here stated that it can be done if the LA gasket is used. How is this possible? Look at the Holley cast aluminum valve cover and how the side is almost straight up from the...

I’m curious about the differences in oil pan gaskets for the 360 engines. A friend here is building a 408 based on a 2001 casting 5.9 that was a Mopar Performance crate 360/380. The oil pan on it is center sump for use in cars. The gasket kit he bought is the Fel Pro 260-1723 which translates...

Hello, I’m putting together a 1990 360 that came to me with the famous Edelbrock RPM Air Gap intake. I’m trying to figure out how to plumb it for e heater hoses. The prior owner had a hose nipple here: That seems weird since then the hose would have to cross over the radiator hose. Other...

I'm working on a 5.9/408 build with a fellow FABO member and I got curious about this. 5.9 stroker build When assembling a non stock engine, you often have to get custom parts to fit the application. We file fit the rings to each bore but does anyone actually measure for pushrod length on...

A friend and I are building engines in the shop out back...his is a 5.9/408, mine is a stock stroke 360. We have both read numerous books and online threads on the cupped plugs that fit into the oil galleries at the front of the block. My 1990 roller cam 360 did not have them in place but it had...

Many of us are traditionalists, myself included. I love the Mopar orange, I loved the Chevy orange when I owned them. I do understand the desire to stick with a factory type of color. Last week a buddy and I painted three LA type blocks in Go Man Go... I first used the GoManGo on a 440...

Mopar Muscle magazine August 2017: While looking through this, I ran across this article: The text of the article stated that with this test engine, they claimed to use the stock cam, stock compression ratio but roller tipped rocker arms… They show 320 HP compared to the factory rating...

I asked this in my build thread but didn’t get a response. I figured I’d ask out in the open. Looking at this piston, can you tell which valve relief is bigger than the other ? At first glance, you’d think the notch on the right is bigger, right? Look again… You move the piston around and...

...Dated 7-9-69: With that, I first think that this is a very late casting for a very early 1970 model car. The only 1970 year model cars that I know that could have had a 340 were the Barracuda, Challenger, Dart and Duster. Can you tell what model by this stamping? I can't tell if that...

Somehow, I'm the guy that has stumbled through this hobby sometimes not doing things the way that I am supposed to be doing. I've never checked or compensated for installed height with valve springs. I've never experienced valve float or kissed a valve with a piston. I've never checked or...

A month ago, I tore down this engine: This is a 1990 roller cam 360. It was rebuilt about 10-12 years ago with some Hughes parts and some stock parts. 9 of the head bolts on each side were ARP with one stock bolt. All of them had washers on them, even the stock bolt. I should also state that...

I have fuzzy memories about this subject... There have been guys that post about this or speak of it but I don't recall how it is calculated. Lets say that you know a published deck height of an engine, the stroke, the rod length and piston compression height. What is the formula to get an...

Hello, I did do a search on this but saw nothing. As I understand it, the 360s are all externally balanced just like the 5.9 Magnum. I’m having trouble finding the amount of balance that each engine has. I thought that they had a different amount of balance to them. I have a 5.9 Magnum...

I'm helping a friend and while tearing down his MP 360/380, I can't find a casting date anywhere on the block. The B/RB and LA blocks had it on the RH/Passenger side but this one does not have anything resembling a date on it.

Many of you have dealt with this sort of thing.... You have a car that needs an engine rebuild or swap so you start thinking of what to do. The options may be all over the place and hard to choose. For me, I have these two cars to work with: The black car looks terrible but is as fun as you...

Forgive me, I actually did do a search on this but found nothing....which surprised be a bit. Regardless, I'm curious about what intake manifolds are available that fit a Dodge 5.9 Magnum engine. I'm looking for a basic dual plane mid rise single 4 barrel design. I remember this one...

Here we go.... This is not purely hypothetical. Years ago I had a 318 in a Duster that was a S-L-U-G ! I tried all sorts of things to improve it but it was still slow. I pulled the timing cover to find that the cam sprocket and crank sprocket did not line up at the 6:00 firing position. With the...

Hello. Forgive the simple questions that follow. I only ask because I am just not familiar with what interchanges between these two engine series. A friend has a Mopar Performance crate 360 in a Dart and is looking to build a long stroke 408. He may even change the heads to the Trick Flow Magnum...

Hello, I’m going through some stuff I have here and some of the stuff was given to me awhile ago. I don’t remember the exact application for a few things and was hoping you’d help clear it up. First are these pushrods. I have several used LA hydraulic flat tappet pushrods picked from different...

Hey there. A couple months back, I bought this: It is a 1990 360 from a van. It has a car oil pan and a few goodies already in place including the valve covers, Air Gap intake and this: As you can see, water went through it, maybe due to a bad head gasket or cracked heads. My question here...

Who has done this? I've replaced rod bearings with engines still in cars but I don't think that I've replaced a full set of main bearings before. Rods are easy, pushing the rod UP a slight amount allows adequate clearance to slip the top shell out. The mains though...it isn't as if you can pull...

I’m curious about the mid to late 80s, specifically. As I recall, there was a time where the engine blocks had the taller lifter bores but still has flat tappet camshafts. Those blocks could use flat tappers or roller lifters. At some point, the engines went to roller camshafts and didn’t go...

I have no experience with the 318s and 360s once they were fitted with roller cams and lifters. I have even less experience with the Magnum series engines. A friend may be willing to part with an '89 360 that had a roller cam but he swapped in a hydraulic flat tappet setup in it. I'd like to use...

I am helping a buddy do an A/C conversion in his car, it currently has a single groove pulley on a good alternator. I have some dual groove pulleys here. What is the process to change pulleys?

Since I have my engine out for a rebuild, I'm thinking of painting it with a catalyzed paint from a spray gun. Despite good prep, my engines seem to peel a little in some areas so I thought that better quality paint might stick longer. The spray can stuff is cheap and anyone can paint with it...

I thought I recall reading that the heads and intake had a different angle than later LA series engines. Who can shed some light on this?

I sold a '65 Valiant Convertible to a friend of a friend. The new owner is a decent guy but isn't a hardcore car guy like many of us here. He needs a LOT of help to make this car roadworthy. It sucks for me though....I sold the car because I don't want it at my house anymore. I thought by...

I recall reading about this before. Radiators painted black, NASCAR engines, other instances as well. What do you people think?