Every single thing i have ever bought, yes, every single one that was Speedmaster/Procomp has been either faulty, very badly made, didnt fit right or garbage quality. I wont buy anything from them any more.

To anyone who wonders how good magnum heads are. I ported a set of EQ magnum heads using the stock valve sizes (1.92, 1.62) but longer stems to facilitate the use of PAC beehive springs. I didn't do any chamber mods. I also ported a Eddy RPM intake. Using a custom ground Bullet hyd. roller cam with .545 valve lift, my son's 360 cranked out 365 HP and 415 Tq at the wheels in a 74' Duster. That's well over 400 hp and approaching 500 tq. at the crank. So I've been told. Although the powerband is all done by 6K rpm, it is impressive for my kid's first street car.

Great work! You mention that you are dropping in a Hughes spring kit, what springs are you planning to use?

The reason those adjusters are drilled is so you can run LA rocker shafts with LA heads on a magnum block. And you'll have to do some work to them.But what do you expect for 200 bucks?If you can't even buy stamp steel shit for that

I payed 3100 👍

They didn't make em 2 run with a hemi I've had a bunch and they last 4ever

Looks like they will work nice. You were able to open that pushrod pinch up a lot.

Remflex header gaskets?

i bought bare set of RPMs for my stroked 360. i had to do alot of griding because the finished "CNC" was garbage. i wish i would have gotten the Trick Flow heads first instead of the wasting time and money on Edelbrock

I think I'd put a dab of silicone around the sensor and belhousing hole to keep it from bouncing around without the gromet in there.To kinda hold it still. but I like your idea 👍

You do know Richard Holdener and the engine masters guys have both shown the magnum doesn't gain almost anything over 29 degrees. You seem to think these are like chevy's. The magnum's have very efficient combustion chambers and don't need tons of timing.

Why go through the work to drill out the block instead of just getting the oil through pushrod shaft mount rockers that several companies offer now?

Couldn't you just drill the block to the cam bearings

My adice use a DUAL PLANE performer or rpm model, unless you're all out drag racing with huge stall, very low gears, top end cam ,go for torque, throttle response etc brother I'd drive around you with a near stock SBC with torque as the focus... 😂😂😂😂😂😂

Just curious as to why would you want to use L.A. heads? Im running a 5.9 magnum in a barracuda, it has the mopar r/t heads and cnc porting by hughes, m1 intake, demon carb and its a 4speed. This car is a monster compared to a 70 340 4 spd duster. The magnum heads are awesome, the Aussie replacements are even better. Just curious.. also the m1 intake works well on the Street and would work even better with fuel injection and/or boost. The m1 magnum version has injector bosses cast in as well.

If mopar performance used it on crate engines. It's ready to rock. Now depending on the rest of the build. Will ether be the best choice? It is the 5.2 after all. Can you get better performance with a dual plane?

The M1 is a badass manifold.

Greetings from Ukraine, what a great project! I m going to put hx35 to my burb, waiting fot the pcm and turbi install kit from quadstar

What is it that you’re driving

Very nice.👍

Literally the only video I’ve found to do it without Pulling the back half off!

She's a bit rough

You might have taken away the port bias. That's not good. The port bias is what causes swirl.

pause

Nice work

That intake port looks sweet.

Nice

Good lord

Nice

Did you hydraulically damage your block by threading in a head bolt without making sure all liquids were removed from the holes?

Use a 1/4 inch set screw for the oil metering. It’s mostly drilled already.

CNC or Allen Johnson pe V8 18 liter plus Darren blower or billet aluminum block or hemi 426 they running 5000 hp plus

I did the same thing to my 6.5 would love to share what I am doing with u and some things I did different But I pretty much did the same layout

funny, i have beat the snot out of these engines and they laugh at me. you overheat any modern engine and you are going to sit there waiting for a tow truck and the shop will tell you you need an engine.

Excellent work

That's a very nice truck

Thanks for sharing a great video

If you're dealing with any regular production vehicle built after the year 1973 it's now basically a shelf life car built with mediocre steel and mostly plastic components so unless you're keeping it in the garage and well- maintenance😢😮😮😮😢

Speedbastards, Butt Cracks

Looks real good. Thanks for sharing. 👍

Very nice, this will make big power for sure.👍👍 Thanks for sharing. 👍

It will be interesting to see how long your engine lasts.👍 Always fun to experiment. Thats how we learn. Have a great day.👍

I've hurt a bunch of Magnum 318 blocks! 20+ psi of boost will do that (actually the wrong flex plate had done more damage than the boost, I have yet to hurt a piston or rod)! I'm working on a fixture so that a Magnum may be drilled for LA oiling that I plan on having done in a month or two. Almost all of my block have had the cracks around the head bolts, I just slam the studs in and I have not had any problems.

The 318 LA Wedge motors are great!! So what happened?

Why drill the decks when so many companies offer oil through pushrod rocker setups?

👍💪

Correction, I drilled the deck to 5/16-18 since I already had a 1/4 pilot hole.

I had a really sweet running 1981 New Yorker that I parted out, and the 318 was complete and ready to install in anybody's A-body or Volare/Aspen. A friend who was detuning his D150 begged me and made me a cash offer I couldn't refuse for the engine. He was pulling a 340 out, so I told him to swap the pan and don't go f*cking around with the internals. He wanted it back bone stock for a daily with MPG and good driveability. So what does he do? Tears it down and puts the pistons in Purple Power degreaser and finds deck cracks like yours has (not an issue!), and wants his money back. He later decided to put it back together, and took the pistons out of soak and they looked like Briggs and Stratton 3.5hp pistons that were melted!! DUMB MOTHERF*CKER!! Don't sweat the radial deck cracks, I was a dealer tech and built many, many 318s with the same cracks and they run fine with no leaks!

every head we've ever opened, regardless of brand has issues that need attention. You never use them out of the box. I don't care who the brand is. These heads out flow stock magnums by 40-45cfm. 5-15 cfm at low lift numbers. the 360 magnum in our 79 Ramcharger (stock except a Hughes 208/214 cam, carbed)picked up 21/26 to the wheels over factory heads, that was minor clean up and setting valve height, no porting. they aren't a race head but can be ported to flow as much as TF190. for 2/3 the cost when you figure in the rockers needed to use those on a magnum engine.

Speedbastards 😆I bought rooler rockers for my bbf 460 project. they work ok so far but that's how they spelled it on the box. Rooler rockers