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408, pumpgas, EQ heads, 10.1 to 1 compression, liked 30 degrees max on the dyno. Cam is a Comp Thumpr 235/249/107 in at 105, airgap intake. It is at 14 initial now to get it back to 30 total in by 4,000. My converter flashes above 4,000. I am thinking of going to 20 initial plus 10 for 30 total...

Title says it, how much stroke can you stuff into a magnum 5.9 block using the small rods? Kinda curious about A BIG street motor

65 2dr post Dart, 408 with 904,4200 stall, 504 hp at 5700 518 tq at 4600,3.55 gears, ET street tires. Has a coilover rack and pinion built by me, wilwood discs up front, full 2.5 exhaust, ProCar buckets, no heater, all body parts original. No cold air package.

What heads are out there that will match or exceed my EQs that are bowl ported with 2.02 intake valves? It would only be worth it to me to upgrade to aluminum if i can transfer my current valvetrain parts from the iron EQs. Whats ou there? Anything that is better with the same work done?

This is a fun post to see what guys THINK. can be done with a lowly set of EQ heads, a magnum 5.9 base ( engine block) and a stroker kit. Budget is what i want strongly considered. The basic idea is what would Joe budget racer build, no dry sumps, no vacuum pumps. My ideas- 408 cubes, 13/1...

I read in another post guys didn't like certain oils, one of which i run. So what oil works best with alky, making 880 hp, 528 cubes, 15/1 compression?

Brian, box is full

I got to wondering just what the limit is for these heads? Lets allow a high lift (.680 if it will fit?) solid roller cam, lng valves and 1.7 rockers, tunnelram, 14/1 compression, 408 cubes, vacuum pump, thin rings, a center weighted crank to give some life to the stock block, added bottom end...

When I built the 408, there was minimal bore wear, except the very end of piston travel at the top. Is there a difference between the stock ring height ( top ring) on a stock piston, compared to a kb107 piston? As measured from the piston pin? If it is lower, that would really help increase...

After trying to install an la block angled oil filter adapter on a magnum block I found that the cork gasket that goes on the bolt between the block and adapter can't contact both the magnum block surface and the adapter surface to seal properly. The Magnum blocks have the center surface where...

It has been so long since I put one of these on, (40 yrs!) I forgot what if anything goes on the bolt between the adapter and block? I assume the only gaskets used are the big one for the outer edge of the adapter, and the fiber one to seal the bolt to the adapter, correct?

Dyno session tomorrow! Take a stab at what this combo will make. 408, 10.1/1 compression, EQ heads with 2.02 intake valves, bowl ported, 272 cfm at .600 flow. 850 quick fuel Q, Comp 235/249/107 duration. @ .050 cam with about .560 intake lift, Airgap intake on top of 1 inch open spacer, dyno...

I am putting SBC rockers on a set of Magnum EQ heads, and the guide plates are too tight. I could go into a rant, but it won't help. I can hear the guy on the tech line at Comp- gee, we've never had that problem before! I wish I had a dollar for every time I've been told that! So the question...

What is the base advance curve of the Mopar Performance distributer? I have a limiting plate and the Mopar light springs to work with, and need to curve it for a 408 with 10/1 compression, EQ heads, Mothr Thumpr cam, (235/249/107 @ .050 duration). Manifold is a Rpm airgap, 1 5/8 to 1 3/4 step...

The title says it all. Knowing exactly the PERCENTAGE of lift lost would add a little bit of understanding to the smallblock. Anybody measure it, or calculate it?

I opened my fat mouth on another post, about a cheapo 5.9 buildup. My project went crazy/408 striker when I found out it needed an overbore, so someone else needs (or has!) To do it? Here is my recipe for the ultimate in cheap power. Take one good running 5.9 Magnum, add a small cam ...

What is our there? I have the one on big inch small blocks, and one on how to rebuild small blocks. Anything I have missed?

If you have spotted posts by me on valve train, compression, etc, it all led up to this build. I started with a boneyard Magnum 5.9, figuring I would put a cam and valve springs in it and a carb and call it good. Well, upon tearing it down I found just enough bore wear at the very top of ring...

I want to run a Voodoo 712 hydraulic roller cam in a 408 build, and would like input on reasonably priced sbc 1.6 ratio rockers to use. Also any input on how well this conversion works using the 5/16x3/8 stud conversion kit available.

Just how much punishment and lift can the stock rockers etc. Take? With 5/16 bolts, it makes me a bit uneasy. I wouldn't want to invest in a cam with XE lobes for instance, if the stock parts will fail or have a real short life. I don't have my motor assembled yet, so now would be the time to...

EQ heads, sealed power 11cc dished pistons, .020 overbore, stock stroke, can set deck hieght at .050 in the hole with a .028 gasket as is, or deck it some for better quench, if it will tolerate higher compression. With out decking the block, it works out to 9.6/1 compression. 93 octane BP gas is...

Since I have to rering the 5.9 Magnum motor I am rebuilding for my street car, I would like to hear of any improvements in power gained by using file fit rings to custom fit the end gaps, rather than use standard rings. The cylinder bores show cross hatch on all sides of each cylinder, so...

How strong are the stock bolts as built from the factory? This motor will have stock pistons , never go over 6200 rpm, will shift before 6,000 rpm. Also, what is the torque spec for those bolts?

Whose rering, gasket, and bearing kit do you recomend? My block looks great, can still see original hone in all cylinders. I can go two ways, Flex hone it, or have it touched up at my machine shop. Stock pistons will be reused. This motor will be a moderate rpm street/strip build, probably never...

Castings are from china. Anybody bought a set, flowed them, or inspected them? They are $204.50 for bare heads and free shipping.

Any body have a real easy way to set up an oil system for shaft type rockers? A -3 fitting from a main oil galley would provide plenty of oil. Tee this to fittings tapped into the heads in the valley? It would take a carefull drilling to hit the oil passage in the La head, hopefully it could be...

I see in the Dacco catolog there are low and high stall converters available. I have a 1987 904 lockup trans and converter and will be running it behind a 5.9 Magnum junkyard motor with a carb and air gap intake, recurved stock type distributor, 1 5/8 headers and a XE roller cam with 278/ 278 /...

I need more room than the fan clutch i have now because I installed a 3 row radiator. Is this unit shorter than most mopar units?