512 B build almost complete

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At least as far as the BBM heads are concerned, fhe differences between the valve used in the E Street and RPM heads, from a visual perspective is...... The E Street valves have a lathe turned finish on the backside of the head, and the RPM valves are swirl polished.
Along the same lines as the differences between a Ferrea 5000 and 6000 series valve.

Left - E Street
Right - RPM

38D44CE5-D227-4BE2-800A-8F97E9D2C30B.png
 
Assembled long block minus the intake. The intake porting is approx 60% complete--I also have to cut the intake .090"-.105" to accommodate the fiber gaskets x 2 plus the sheetmetal valley pan gasket-fun fun fun. J.Rob

Assembledshortblock.jpg
 
I bought one big block Edelbrock head 4-5 years ago cheap from a guy on Moparts. One of these days I’d like to drag it out to see what I could get out of it.
 
After several more hours of port/divider cleanup the intake did in fact require .105" cut from both surfaces. The intake sits perfectly now with no bolt hole elongation required. I should have this on the dyno next week --mid week-looking forward to getting this one run and done. J.Rob

512dynoready.jpg
 
RAMM said:
After several more hours of port/divider cleanup the intake did in fact require .105" cut from both surfaces. The intake sits perfectly now with no bolt hole elongation required. I should have this on the dyno next week --mid week-looking forward to getting this one run and done. J.Rob

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Impressive work! That engine looks like it is just begging for a chance to show what its got!
 
Well so far so good. I don't want to shoot myself in the foot but no oil leaks and I've got 3 full pulls from 3500-5500 rpm in the books. My unspoken goals rolling around in my head were 600hp/650tq and with 35 degrees timing and 180F oil 160-170F water is what you will see in the screenshot. It gives up early but I kinda figured it would with 512 cubes to feed through a more street oriented induction. I'm very hopeful a spacer combination will add some power. Considering this is going in a '70 Charger with 3.55's and a 4 spd I think it will be far nicer to drive than the previous 466 cube lowdeck. J.Rob

512dyno.jpg


512dynoresults4thpull.jpg
 
Beautiful build just beautiful. I like the simple fact you targeted a reliable durable street build vs trying to eek out every single possible HP. Many of us are not NASCAR drivers and just want a nice solid mill for street driving and an occasional blast or two down the strip. Well done Sir.
 
Sublime one said:
Beautiful build just beautiful. I like the simple fact you targeted a reliable durable street build vs trying to eek out every single possible HP. Many of us are not NASCAR drivers and just want a nice solid mill for street driving and an occasional blast or two down the strip. Well done Sir.
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Thankyou, The intake on this was a bit of a wildcard but I wanted to gain him some air cleaner to hood clearance. His previous intake is a max wedge port Indy single plane and when I saw his air cleaner all I could think was how restrictive it had to be. Now he will be able to use a much more normal 3" element. I think the car will be far nicer to drive with the extra torque. J.Rob
 
Oh! I like that. Sweet Jess.
What cam is inside?
 
RAMM said:
Thankyou, The intake on this was a bit of a wildcard but I wanted to gain him some air cleaner to hood clearance. His previous intake is a max wedge port Indy single plane and when I saw his air cleaner all I could think was how restrictive it had to be. Now he will be able to use a much more normal 3" element. I think the car will be far nicer to drive with the extra torque. J.Rob
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Which intake are you using on this motor?
 
rumblefish360 said:
Oh! I like that. Sweet Jess.
What cam is inside?
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I'm looking at my Comp catalog now and it has to be Xtreme Energy 23-701-9 which has a lot less lift than I remember. When I checked lift at the retainer I chalked up the sub .600" to the Howards Hyd Roller bleeding down with no oil pressure and the switch to 1.5 rockers from the 1.6 T&D's it previously had. The customer loved this camshaft in the 470 so it stayed. I don't see why he won't like it even more now that it has 41 (actually 45 since it was a 466) more cubes and higher velocity ports. J.Rob
 
RAMM said:
I'm looking at my Comp catalog now and it has to be Xtreme Energy 23-701-9 which has a lot less lift than I remember. When I checked lift at the retainer I chalked up the sub .600" to the Howards Hyd Roller bleeding down with no oil pressure and the switch to 1.5 rockers from the 1.6 T&D's it previously had. The customer loved this camshaft in the 470 so it stayed. I don't see why he won't like it even more now that it has 41 (actually 45 since it was a 466) more cubes and higher velocity ports. J.Rob
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Hydraulic lifters on a solid cam is what I see.
 
RAMM said:
Yup I do it often. J.Rob
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Same here. Running one in the shop truck right now. And like Kim I will run a solid lifter on a hydraulic. It's a nice camshaft tuning device.
 
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