Recent content by CPMotorworks

Because there is a big difference in measured wet flow on dyno vs dry flow ratings. Not to mention dyno and track testing shows improvement.

Not a dumb question at all. The cast steel (vs stock cast iron) will handle that just fine. I haven't used a Scat 4340 crank for this combo yet, but I bet it wouldn't need to have Mallory installed to balance like the cast crank did, even with the light bobweight this one had. So the added cost...

Scat cast crank and Pro Comp rods, Pistons are custom RaceTecs with -23cc dish @ -.002" deck height, 10.27 static. The Edelbrock heads needed the usual guides sized and valve job corrected, and decks cut as they were not flat and a 64 Ra, so I trimmed them flat and to a 24 Ra. Ports are as cast...

I'm sure Larry Meaux would be interested to hear how it's incorrect, not to mention all the professional builders that use it for reference. The problem with basing your whole cam selection on DCR is what I see as "squishy". I've seen more than a few threads talking about how people are...

I'd suggest not using that incorrect calculator on the KB site, that has really caused a lot of bad information on this site. Can anyone here tell me what RPM you use to figure DCR, and do you understand what DYNAMIC means, and why it's called DYNAMIC compression? I would suggest you buy...

http://www.forabodiesonly.com/mopar/showthread.php?p=1971042249#post1971042249

I know lots of guys fight with leaking valve covers, especially when switching over to cast aluminum covers. Also seen many threads about the corner tabs being cracked and broken on the Mopar Performance covers. Some of you guys know and many don't- the rocker rails on most Chrysler heads are...

Hi Robert, Let me check in with Tom on Monday and verify what it would cost and I will get back to you with pricing. Send me an email if you would please and I'll send the quote via email vs having to log in here. Email is [email protected] or go to the website and you can send it to. Pete

I don't know how many different blocks you two have honed but I haven't seen a single domestic V8 block that doesnt move when you torque down head bolts with a plate. Small and big Chevy, Chryslers, Fords, Buicks, Olds, Pontiacs...they ALL move, some more than others. Even the aftermarket blocks...

What matters is if the bore is round when the heads are on. Finish is secondary. Rings can't seal to bores that arent round and if they "wear in"...you have other issues by then. The big Chrylsers move around quite a bit, if they don't have a plate to hone your block you might as well burn your...

X2 on Molnar, dealer for them myself. Tom was the engineer behind two other well known higher end mfg's.

Thanks Rob I've seen a few threads about valve covers not sealing or breaking ears off the corners of the BBM and the quality of the covers gets blamed. This is the real problem, the valve cover rails on the heads are never cast very flat and the covers snap when you tighten down the bolts...

I believe you :D The castings are never flat and some worse than others. Stamped covers can flex some and seal a little better. Cast or fab'd covers wont. For me it's a standard operation on SBM/BBM to mill the rocker rails flat so they don't leak like crazy. Only way to fix it...

This is the problem, the valve cover rails on SBM and BBM are almost never flat,they have a serious arch in them preventing them from ever sealing with a cast valve cover that doesnt flex like a stamped cover. I mill the rails flat and it takes care of the problem every time...

IMO shops that bore within .002" then hone are taking shortcuts. You have to leave enough material to use a series of stones, in order to leave the subsurface with the proper depth of cross hatch to hold the oil. AKA Rvk value. I see alot of blocks come in that have been shallow honed and the...