Visited with my engine block today....

D-mailman · Sep 21, 2019

RustyRatRod said:
I don't like it. I use the other formula.

It is not flawed , .... you just don't like it . "To each his own"....I think I said that already .

mopowers · Sep 21, 2019

All you'd have to do is divide by 8 and multiply by whatever number of cylinders you have. This whole argument is dumb considering how basic the math is. If you don't know how to calculate cylinder volume, ask a neighborhood 12 yr old.

yellow rose · Sep 21, 2019

mopowers said:
All you'd have to do is divide by 8 and multiply by whatever number of cylinders you have. This whole argument is dumb considering how basic the math is. If you don't know how to calculate cylinder volume, ask a neighborhood 12 yr old.

Or grab a slide rule (only if you are old).

1Fast340 · Sep 21, 2019

halfafish said:
I held a little service with my half-built block today. Sat there and drank a beer, while I waited for it to finish assembling itself. Needless to say, I was disappointed in the results...

Have another cold one and see if the results are repeating,just to make sure it gets statisticly proven for future reference!

1Fast340 · Sep 21, 2019

yellow rose said:
Or grab a slide rule (only if you are old).

Pffft dont need to be old to use one of those,i see sliderulers in good condition all the time in second hand stores.

famous bob · Sep 22, 2019

1Fast340 said:
Pffft dont need to be old to use one of those,i see sliderulers in good condition all the time in second hand stores.

I can honestly say, I`ve never used a slide rule in my life !

yellow rose · Sep 22, 2019

famous bob said:
I can honestly say, I`ve never used a slide rule in my life !

LOL. They are quick and easy for down and dirty stuff.

RustyRatRod · Sep 22, 2019

D-mailman said:
It is not flawed , .... you just don't like it . "To each his own"....I think I said that already .

Yeah it's flawed because I use the other formula. lol

RustyRatRod · Sep 22, 2019

halfafish said:
I held a little service with my half-built block today. Sat there and drank a beer, while I waited for it to finish assembling itself. Needless to say, I was disappointed in the results...

Was it a conjugal visit?

:rofl:

RustyRatRod · Sep 22, 2019

yellow rose said:
Bore X Bore X Stroke X .7854 X the number of cylinders. Right out of the NHRA rule book.

Yup. That's why I use it. It's good enough for NHRA

famous bob · Sep 23, 2019

RustyRatRod said:
Yup. That's why I use it. It's good enough for NHRA

I DON`T USE IT BECAUSE OF THE NATIONAL HOG RACING ***. , BUT BECAUSE IT SEEMS THE MOST LOGICAL TO ME . And we all know that I`m kin to Spock !------

Krooser · Sep 23, 2019

stixx said:
We should ask Krooser to rename the thread in "How to correctly compute engine displacement".

Don't rock the boat...

yellow rose · Sep 23, 2019

Krooser said:
Don't rock the boat...

That boat already capsized. LOL

Krooser · Sep 23, 2019

yellow rose said:
That boat already capsized. LOL

This thread is like the Titanic... gone too soon!

Shorty Medlock · Jul 25, 2020

Geez this is an old thread... same story still don't have my block back.

BUT my heads are dome with new Manley valves, 11/32 guides, fresh 5 angle, skim cut on the heads.

The shop needs to borrow a SBM fixture to finish the block. They have a new Rottler CNC and didn't realize their new tooling would not work on the Mopar. If I had know that I would have shuttled the tooking 200 miles back and forth to get it dome... or even bought the darn parts!

Anyway I'll get my heads on Monday July 27th and bring them home. Stopped at Competition Products and we picked out some new 11/32 retainers and locks from the shelf... nice to be able to pick your stuff from hundreds of possible parts!

Krooser · Jul 25, 2020

PRH · Jul 25, 2020

Bore X Bore X Stroke X 6.2832

Bore X bore X Stroke X .7854 X cylinders

Anyone care to take a guess at what .7854 x 8 = ???

PRH · Jul 25, 2020

Granted...... I’m looking at a pic on my phone...... so it’s probably fine...... but...... do those locks actually fit these retainers?
The retainers look like they might be for 10* locks.

Krooser · Jul 25, 2020

PRH said:
Granted...... I’m looking at a pic on my phone...... so it’s probably fine...... but...... do those locks actually fit these retainers?
The retainers look like they might be for 10* locks.

View attachment 1715567584

Yep they fit...7 degree. We pulled several off the shelf until we found one that fit.

The springs are LS7 but fit Gen3 Eagle head's, too. Came from Richard Petty Racing. Retainers have a GM application, too.

I'm going to see how they work on my long valve W2 head's. The Crower springs that were on these head's had an installed height of 1.9...these should be the same.

If this works I'll have about $100.00 in springs, retainers and locks. The PSI springs alone sold for $450.00 a few laps ago.

Budget friendly.

Edit... these springs willl work on an LS7 but originally were used on a Dodge NASCAR engine R5P7? Ran at Atlanta 2009 IIRC.

pittsburghracer · Jul 25, 2020

yellow rose said:
Or grab a slide rule (only if you are old).

I still have one but I doubt if I could still play anything on it.

Shorty Medlock · Jul 25, 2020

pittsburghracer said:
I still have one but I doubt if I could still play anything on it.

I remember having a three sided ruler that made it easier to do complex math by providing all sorts of shortcuts and info... I barely got by 2x2=5 before I gave up.

Krooser · Jul 31, 2020

This is Gary the shop owner... he's installing locating dowels in the main bearing saddles on a John Deere engine. The Rottler is making circular cuts in the block with a very small cutting tool. Amazing what this machine can do.

Got my heads and valves today. They look good.

And I got my Richard Petty-sourced valves springs rated... might be a bit stiff for my needs right now.

Plus I shot a couple photos of the shop...

Wyrmrider · Jul 31, 2020

just set them up taller???
break in weth something else

Krooser · Jul 31, 2020

Wyrmrider said:
just set them up taller???
break in weth something else

These are dual springs so break-in will be a snap.

You found a good spring available from Lunati. I have one, too. Both fairly light at under 400# open. These are 190#/500#... sure as hell wouldn't have any valve float to worry about but pretty wimpy compared to what the 1/4 guys run...

Gotta think on this ..... again!

Ordered King bearings this week and they are in at Competition Products. I'll pick them up Monday in Oshkosh. I have to run that way anyway to take my quickchange in to get re-assembled.