512 Stroker Intake and Carb?

[killer8man]

I'm still in the planning phase of building a 512 stroker and, after reading as much as I can about building strokers on this website and other books, I'm still overwhelmed with the vast number of intake and carb combos that I could go with. Have any of you built a stroker recently? What intake and carb set-ups did you use? I'm going to run 440 source Stealth Heads (10 degree locks and retainers) and 512 stroker kit, Comp Cam .564 Extreme Energy Hi-lift Hydraulic Cam (unless you guys tell me otherwise), and most likely TTI Headers with 2" primaries. I'm also using high volume oil and fuel pumps (both mechanical). If there is anything else I need to know or any advice that you'd like too offer, I'm all ears. This will be my first attempt at an engine rebuild and I plan on doing as much of the work myself as I can.

I'm also going to convert my 727 to a 5 sp manual from Hurst Driveline Conversions going to a Dana 60 posi rear.

Thanks,

Adam

[1Bad70Charger]

You will be leaving a TON of power on the table with 440 source heads unless you REALLY have them professionally worked over, out of the box they certainly will be a choke point on your engine as they simply cannot flow enough air required for a 512 ci build.

I talked to the best of the best in the industry on this same question (for a similar build), Dwayne Porter, and he would recommends going with the Indy 440 EZ-1 Heads and the matching EZ-1 dual plane manifold intake.

I would submit that a 950HP or 950 Proform carb would be perfect for a 512 stroker.  Best of luck, talk to a few expert engine builders to build you engine once and build it right!  

Dwayne Porter also recommends on a build like this going with a solid flat tappet cam vs. a hyd. flat tappet cam, b/c of valve float issues with the hyd. cam and b/c you will make considerably more power with a soild cam on a big cubed engine like this!  You have probably heard of Dwayne Porter, if not, others here will confirm he is a TOP NOTCH high performance Mopar Engine builder (simply one of the best in the business).

[1Bad70Charger]

Bump to the top for a few more opinions for the original poster!   

[dstryr]

Have you considered 3-2bbls?   I am just getting ready to drop my engine in as it was finished a year ago but in the mean time the winter hit and then I moved...

Here's a link to the build: http://www.dodgecharger.com/forum/index.php/topic,56050.0/all.html

There are several good 500" in combos in the Proven Combinations link at the top of this section.  

Keep us posted! 

[killer8man]

Thanks! Now I have to decide if I should return the 440 source heads I already have or just keep them and have them worked over. It doesn't look like the Indy heads will cost me much more. And if I factor in the cost of the porting...I think I'll sleep on it.

[Wicked72]

I would get a set of bare indy heads and buildem...not with indy parts. or get a complete set a edelbrocks. and spending the cash for a port job will make a massive difference! the indys flow very well and after their cnc they are awsome. the edelbrocks flow well to and are just a great quick bolt on IMHO.

[mauve66]

this book will give you lots of insight into various combos and the pros and cons of each one, especially when it comes to heads, valve train and oiling issues

http://www.amazon.com/Build-Max-performance-Mopar-Blocks-Design/dp/1934709034

and there is a link to a dvd on here somewhere on engine tuning (made by Dwayne??) and such that is very informative to those of us that are fairly new beginners or only slightly experienced

[Wicked72]

Or you could just forget all BS and get a hemi conversion kit! http://www.stagev.com/pages/hcheads.html 

[firefighter3931]

With a standard port cylinder head like the Edelbrock RPM or Stealth the Holley Street Dominator is tough to beat.

Lots of low end grunt, excellent top end pull and low height for good hood clearance. 



Ron

[Wicked72]

They have Extreme RPM heads now. CNC ported!

[killer8man]

I'm looking at this Edelbrock Performer RPM intake and I think it would be ideal, but I'm not sure that it will fit under my stock hood. I'm also thinking a Quick Fuel 850 CFM should go on top of it. Have any of you 3rd generation guys tried that intake? I'm concerned about hood clearance. I'm currently running an Edelbrock CH4B with a Holly 750 Double Pumper with a 1" spacer and I've only got about a 1/4" left of clearance (based on my Play Doh test). Maybe I should just re-use the CH4B?