Restart the rebuild

[4spdragtop]

I'll crunch the new numbers and see, thanks for L2316 link.
Yeah altho the pistons are raised slightly .030" outta the hole, I wouldnt call them domes like Commandos had.
Took new Melling M72 apart and checked specs. All were good.
I'll paste a link below I found on an in depth look at the M72.
I realized I got the wrong damn MP spring kit....#P4286571 is for BB..
I need P3690944. No big deal $6/kit dealership will have tomorrow.
Sucks the downtime, could had it mounted. I'll read thru more of the link as he does some cleanup on inlet and outlet wells of the pump.
Thanks

Melling M72 Oil Pump High Pressure Conversion and Blueprinting - Poly318.com

Do these numbers help? Piston head volume says +7.5 cc's. That would be plugged into the equation as -7.5 as it reduces combustion chamber volume. I would think that it takes the dome, and the reliefs into account??

http://[URL][URL]https://www.summitracing.com/parts/slp-l2316f#overview

[/URL][/URL]

Those aren't technically domed pistons. They're flat tops, with valve reliefs and an obvious bevel around the top edge. The 7.5 cc's should take the valve reliefs, recessed circle in the middle, and perimeter bevel all into account. I could be wrong, but I believe you'd enter the 7.5 as a positive number since it's added volume. The amount that the flat piston surface is above the deck should be entered as a negative number. You did it right in the calculator posted in post #46. Just adjust the piston volume to 7.5 instead of 8 - which won't move the needle much.

If you're deck height is actually -0.030", you're going to want a thicker head gasket than 0.039".

 

[4spdragtop]

Not much accomplished today but I did pick up 2 of the correct spring kits today from the Dodge store. Other than the spring kit I dont think I'll do any more mods to the pump.
Used my center punch and a self tapper and popped the plug out. A little awkward but I didnt have a soft jaw vice. Blue spring is stock one. Darker one is replacement.
So I started to mockup pump, pickup and 394 pan. Not sure what make the pickup is but the surface area seems kinda small?
Anyone recognize it? Good quality?
Thanks
Steve

 

[CFD244]

Are you putting washers on the pump to block bolts?

 

[Ted265]

So I started to mockup pump, pickup and 394 pan. Not sure what make the pickup is but the surface area seems kinda small?
Anyone recognize it? Good quality?
Thanks
Steve

Looks to be a similar design to my milodon pickup but mine has a "step" tacked onto it to make sure you cant block the pickup screen with the pan. The ID of the tube is bigger than stock and the bends are much less restrictive.
Don't see you having any issues with it if your pickup to pan clearance is within spec. (Pretty sure the milodon spec was 1/4 - 1/2")

 

[4spdragtop]

I have to find bolts but plan on using washers. Have you got bolt dimensions Troy?

Are you putting washers on the pump to block bolts?

 

[CFD244]

I have to find bolts but plan on using washers. Have you got bolt dimensions Troy?

Here's the thing.......I purchased a box of engine bolts from a member that tore down a SB. All of the bolts were bagged and tagged. These oil pump bolts didn't have any washers. That's why I've been asking all the questions about washers. As you can see, your 5 oil pump case bolts don't have washers and neither to head or mains. I'll measure them today and shoot you a pic.

After reading the multiple responses from the other thread, it would appear as though any fastener tightened down to solid steel does not require an additional washer. It would also appear that any concerns regarding "locking" a fastener should be addressed with blue Loctite (consensus).

 

[4spdragtop]

Thanks, the screen doesnt have a step, but it does have a retaining lip for the screen. I plan on using a windage tray also so I'll do some more checking, if it works with windage tray I'll make sure it sits off the pan 1/4"-1/2"
Thanks.

Looks to be a similar design to my milodon pickup but mine has a "step" tacked onto it to make sure you cant block the pickup screen with the pan. The ID of the tube is bigger than stock and the bends are much less restrictive.
Don't see you having any issues with it if your pickup to pan clearance is within spec. (Pretty sure the milodon spec was 1/4 - 1/2")

 

[4spdragtop]

Got spring kit installed in pump. Still need to put the guts in it. Cleaned up windage tray and mocked it up with pump and pickup. From rail to bottom of pan is 7 1/8" + gasket thickness.
Right now I have 7 1/4" from lowest point of pickup to rail. Tweak of a turn and I think it's good.
Shone a trouble light best I could while rolling engine over. Nothing hitting so good there. Take pan in with me to work and I'll clean it up as well as a bucket of bolts.
Thanks
Steve

 

[4spdragtop]

More learning and prepping than assembly progress, but still moving fwd.
Got parts that @CFD244 donated, THANK YOU!
Just finished nights so blasted and painted #394 oil pan while at work NOT firing mine up lol @CFD244 Peened bolt holes and straightened rails.
Painted OEM Mopar red.

Finished oil pump assembly, I actually lucked out and the Milodon pickup fitted in the jug of Rotella lol. Jammed it in and tested pump with drill. Success! So mounted it.
I had tried to check #821-16 lifters by placing 2 face to face. I wasnt able to detect much crown. I used a straight edge and checked for light behind it on either side. Easier to notice the "rock".
Also checked a set of Johnsons? Crown good on them also.
I have 3 sets of OP gaskets. I'm going to use the 6 nippled ones lol. I like how the newer ones have flaps, but think they will stay put better with the 6 nipples lol.
So next on the list is cam plate, drip tab, windage tray and oil pan, tc set.
Thanks all.

 

[CFD244]

Thanks for the pics. Would you say that the high spot on your lifters is a little off center? I checked 2 new sets here, both have crowns but the high spot is a little off center.

 

[toolmanmike]

More learning and prepping than assembly progress, but still moving fwd.
Got parts that @CFD244 donated, THANK YOU!
Just finished nights so blasted and painted #394 oil pan while at work NOT firing mine up lol @CFD244 Peened bolt holes and straightened rails.
Painted OEM Mopar red.

Finished oil pump assembly, I actually lucked out and the Milodon pickup fitted in the jug of Rotella lol. Jammed it in and tested pump with drill. Success! So mounted it.
I had tried to check #821-16 lifters by placing 2 face to face. I wasnt able to detect much crown. I used a straight edge and checked for light behind it on either side. Easier to notice the "rock".
Also checked a set of Johnsons? Crown good on them also.
I have 3 sets of OP gaskets. I'm going to use the 6 nippled ones lol. I like how the newer ones have flaps, but think they will stay put better with the 6 nipples lol.
So next on the list is cam plate, drip tab, windage tray and oil pan, tc set.
Thanks all.

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Looking good.

 

[4spdragtop]

Good morning Troy, I didnt check real close for center of lobe but I would say yes the crown was centered. I'll chk for rotation once I slip them in.
Cheers

Thanks for the pics. Would you say that the high spot on your lifters is a little off center? I checked 2 new sets here, both have crowns but the high spot is a little off center.

 

[4spdragtop]

Not much progress, but spent $$. Merry Christmas to me lol.
Too cool and too close to pass up.
Thanks to @autopar3000 for giving me the lead on it!
Appears to be untouched.
Coil mount too!

 

[Rat Bastid]

Those aren't technically domed pistons. They're flat tops, with valve reliefs and an obvious bevel around the top edge. The 7.5 cc's should take the valve reliefs, recessed circle in the middle, and perimeter bevel all into account. I could be wrong, but I believe you'd enter the 7.5 as a positive number since it's added volume. The amount that the flat piston surface is above the deck should be entered as a negative number. You did it right in the calculator posted in post #46. Just adjust the piston volume to 7.5 instead of 8 - which won't move the needle much.

If you're deck height is actually -0.030", you're going to want a thicker head gasket than 0.039".

Not if he is running open chamber heads, and he is. He could probably use an .027 gasket if he wanted the compression.

 

[Rat Bastid]

Thanks, the screen doesnt have a step, but it does have a retaining lip for the screen. I plan on using a windage tray also so I'll do some more checking, if it works with windage tray I'll make sure it sits off the pan 1/4"-1/2"
Thanks.

1/4 to 3/8 is what you want. 1/2 inch is too far away from the bottom of the pan.

The only way to know what your compression ratio is is to do a .500 down fill and do the math. The online calculators are pretty much worthless when the piston comes out of the hole.

 

[mopowers]

Not if he is running open chamber heads, and he is. He could probably use an .027 gasket if he wanted the compression.

People still use those?? Ha!

 

[Rat Bastid]

People still use those?? Ha!

Yes.

 

[glockr]

Not much progress, but spent $$. Merry Christmas to me lol.
Too cool and too close to pass up.
Thanks to @autopar3000 for giving me the lead on it!
Appears to be untouched.
Coil mount too!

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The coolest manifold to ever grace a small block Mopar. Wish Offy would do another run of them. What carbs are you going to put on it?

 

[4spdragtop]

Thanks, carbs I've no idea. Carter/Eddys. Open to suggestions?
Need linkage also.

The coolest manifold to ever grace a small block Mopar. Wish Offy would do another run of them. What carbs are you going to put on it?

 

[glockr]

Thanks, carbs I've no idea. Carter/Eddys. Open to suggestions?
Need linkage also.

I got a pair of 500 AVS2's for my setup. (Just the regular ones, not the "calibrated for dual quad use" ones) Hopefully @318willrun will weigh in, I think he has a dual quad setup on a Duster.

 

[4spdragtop]

Thanks 2 new carbs mean more $$, but it was too cool to pass up. I'll look into the AVS2
@j par had a dq setup also, hopefully they will both chime in.

I got a pair of 500 AVS2's for my setup. (Just the regular ones, not the "calibrated for dual quad use" ones) Hopefully @318willrun will weigh in, I think he has a dual quad setup on a Duster.

 

[318willrun]

I got a pair of 500 AVS2's for my setup. (Just the regular ones, not the "calibrated for dual quad use" ones) Hopefully @318willrun will weigh in, I think he has a dual quad setup on a Duster.

without reading the thread (yet), i have a pair of 600 eddies on my 318

 

[Ted265]

Nice score on the manifold, your going to port it or just a gasket match to the heads? For carbs use what your most familiar with - if that's carter/edelbrocks and you are going to buy new then the AVS2 would be worth a look.

1/4 to 3/8 is what you want. 1/2 inch is too far away from the bottom of the pan.

I thought 1/2" was a bit much considering where the stock pickup sits, but that was the spec they gave. I called it good at 13/32" - those tubes are a bastard to bend!

 

[autopar3000]

Not much progress, but spent $$. Merry Christmas to me lol.
Too cool and too close to pass up.
Thanks to @autopar3000 for giving me the lead on it!
Appears to be untouched.
Coil mount too!

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Nice!! I'm glad it worked out for you.

Did you measure the ports? Wondering if they're actually small 273 / 318 size.

 

[4spdragtop]

I did a quick chk on 2 of them, they are 273/318, I'll dbl chk later.
Not sure yet what I'm going to do as for porting/ gasket match. I know there is a fair bit of flashing to clean up.
Once im done messing with x heads and its ports, ill have to see what direction I go.

Nice score on the manifold, your going to port it or just a gasket match to the heads? For carbs use what your most familiar with - if that's carter/edelbrocks and you are going to buy new then the AVS2 would be worth a look.

I thought 1/2" was a bit much considering where the stock pickup sits, but that was the spec they gave. I called it good at 13/32" - those tubes are a bastard to bend!