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I understand that the slant six models use the same rear main seal as a big block but what about the LA series? I rebuilt the 440-493 and installed a rear main from my stash of parts. It fit so I stupidly assumed that it was correct. I just started it and have a leak. Fine droplets are flinging...

Last week I dragged home a 67 Chrysler 300. I thought it had its original engine but the 4-4-68 casting date told me that it was a replacement engine. Now I started looking at the ID numbers and have found that while there is a machined flat spot on the RH side of the block near the oil pan...

I'm getting a 67 Chrysler 300 with its original engine, a TNT 440 4 barrel. It has the Magnum manifolds and full dual exhaust. I'm told these engines had the closed chamber 915 heads too. The engine has not ran for many years but is complete and still in the car. I have no carb or air cleaner...

It seems that this cam has a decent reputation. Andy Finkbiener has made references to it in his book as well as magazine articles. A google search turns up some good reviews too. I understand that it is old tech but it seems to be a decent, proven design. I'm looking to pull the big Lunati out...

Hello guys, I bought 2 Darts a few weeks back. One is a 73 Dart Sport that has no engine. I am told that At some time in the 90s, the prior owner installed a 440. It has a spool type 73-76 V8 K member and the pedestal mounts are modified. There are 4 holes in the RH fender apron for spark plug...

I recently removed my Holley mechanical fuel pump from the 493 because I suspected it might be contributing to a fuel delivery issue. It showed 6-7 lbs of pressure at idle. I bolted in a Carter and now the pressure is at 10-11. I suspect that prolonged driving would overwhelm the needle valves...

I remember when Flowmaster mufflers were just becoming popular in the early 90s. They seemed like they transformed a street car into a NASCAR stocker with that bellowing sound. Back then I drove a Camaro and considered a switch to them. Here I am many years later, a Mopar man with these...

After many attempts to get the 440/493 to run right on pump 91 fuel, I decided to pull the heads. I'm having them ported, getting the chambers opened up a bit and after that, a fresh valve job. To those members that are not familiar with this ongoing saga of mine, here is a summary: 440 block...

With all of the various issues that I have dealt with trying to stop the detonation in my 440/493, I am considering all options. I spoke with Dwayne Porter several months ago. One method he suggested to reduce compression was to have the combustion chamber sides of the pistons milled and to deck...

Time for tuning! Now that I have the car up and running, I'm trying to tune it. I installed an AEM wideband guage and have a bunch of jets, power valves and accelerator pump cams. Here is a recap. 440 based 493 with Edelbrock heads, RPM intake, 2" TTI headers and 10.7 compression. Lunati...

Anyone familiar with these? http://www.summitracing.com/parts/fog-900464520/overview/make/dodge I am looking for a thicker head gasket to lower the compression and these might be just what I need. If they require O rings in the block or heads, I'll have to pass... Thank, Greg

It seems that everywhere I turn, I get conflicting advice. I'm trying to get the 493 to run right on pump gas. It currently has 10.7 compression with aluminum heads and the cranking compression is between 210-220. The cam is the MP 292/509. I have a 727 with a 9 3/4" converter and 3.91 gears...