First Engine Build Questions

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domdart

domdart

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I have a 73 440 coming back from the machine shop this week. It will have new cam bearings and freeze plugs. It is stock bore and only needed honed so I will be reusing the pistons. I will just be doing a re-ring and re-seal with new bearings, and timing set. The camshaft and lifters are shot and need replaced (see pic). I need camshaft recommendations for a reliable, low end torque, fun to drive engine. I spent alot of money to make my 68 Dart's 340 go fast, then never drove fast. This engine has the 73 346 heads. Do I need new springs to go with a new cam and lifters? Thanks FABO.

IMG_1267.jpeg
 
Last edited:
domdart said:
I forgot to mention it is going in my 72 Charger with power brakes.
Click to expand...
without knowing the rest of the combo (intake, carb, trans/stall/gears) my shoot from the hip is keep it under 260 advertised duration, around 450 lift and try and find something that's in the 112~114 LSA area.
 
If you are using exhaust manifolds and stock converter:

1780712736489.png


If you want a lil more and are using headers, stout (3.55+ gears) and/or aftermarket converter, the cam RRR posted is almost exactly like this one, so either one:

1780712934583.png


I tend to be conservative as far as duration on street cams.

sb
 
domdart said:
I have a 73 440 coming back from the machine shop this week. It will have new cam bearings and freeze plugs. It is stock bore and only needed honed so I will be reusing the pistons. I will just be doing a re-ring and re-seal with new bearings, and timing set. The camshaft and lifters are shot and need replaced (see pic). I need camshaft recommendations for a reliable, low end torque, fun to drive engine. I spent alot of money to make my 68 Dart's 340 go fast, then never drove fast. This engine has the 73 346 heads. Do I need new springs to go with a new cam and lifters? Thanks FABO.

View attachment 1716552239
Click to expand...
wild wear patterns on those lifter bottoms
was it running before you tore it down?
How well? just curious.
 
dr dodge said:
wild wear patterns on those lifter bottoms
was it running before you tore it down?
How well? just curious.
Click to expand...
It ran, but not very well. It would idle ok but I could barely keep it running when in gear. I just drove it up and down the driveway. I did a compression check and found cylinder 8 was 30 lbs. The rest were around 120. The inspection sticker in the window was from 1985, so it sat for a long time. The 440 has the stock intake but came with headers. I had to put on an Edelbrock 750 to get it to idle.
 

Have him deck the block square as well. Every bit of compression you can get. A mill of the heads as well to make sure they are flat and again,compression.
 
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