We all know of the 2 most famous builds here that are in the low 10's/high 9's, right? I have read about a handful that are in the 12's, but what about something in between?

I'm wondering about a fully streetable, 3400#-ish A body, 3.23/3.55 geared ride that can run anywhere in the high 10's/low 11's. Sixpackgut ran what...low 10's with a 3.55 gear so it should be able to be geared street friendly.

Maybe something simple...

Starting with a complete 5.7 core.
392 stroker kit (11+:1)
Hughes (or??) CNC ported 5.7 heads
245-250* cam with the correct springs
Stock rockers, etc.

What about an intake for a carb deal? Drag pack it nut$, Ritter isn't much cheaper plus both might not fit under a 6 barrel scoop. Indy Mod Man?? Edelbrock??

Discuss please...

im doing it with a stock 5.7 with 6.1 heads, cam and intake with 76mm turbo at 9lbs of boost 3.15 gear 10.63@131

I ran a 12.07@ 121.75, 1.99 60ft. 3700lbs. Really wish I had some slicks. I have CNC'd 6.1 heads with 2.10 intakes. I would skip the 5.7 heads unless they are Eagles and are worked on. The capability of the heads is the main reason I did a Gen III to begin with. Dont mess with the older 5.7 heads, waste of money when if you keep your ear to the ground, Eagles, Apaches and 6.1's are ready for the stealing. 6.1's seem to be thrown to the side these days but if you find a good used set, you start with 2.08" hollow stem intakes and 1.62 hollow exhausts. [ Moparts Family Site - Keep it Friendly ] is not to like there?

Here's the intake you'll need
http://www.ocperformanceparts.com/the_1st_single_4bbl_gen_3_hemi_dual_plane

Your basic plan should work just fine. You're only looking for about 500 HP to meet your goals which isn't difficult to make given the good heads and a few cubic inches.

500 hp @ 392 CID is only 1.275 HP/CID. Mine makes 1.65ish with no magic tricks.

Yes, after speed reading last night I see where the 5.7 heads are a waste of time based on those Eagle and Appache versions! I was toying with a Gen III project a few years ago when the Eagle was available cheap from Mopar and almost got a set then, but didn't pull the trigger due to too many other things going on...DOH!

How is reliability with hollow stem valves?

Excellent news! Thanks.

You should be able to run high 10s easy in an A-body with a stock Eagle 5.7 and a little bit of boost. Mine's not an A-body but it's 3995 lbs and has run 11.46 @ 120 on only 6 psi. 93 octane and air/air intercooled. Super low dollar setup and I drive the heck out of it. Drag week, long cruises, daily driving, etc. 3.64 gears and a 6 speed.

The OEM valves are not meant for much rpm or spring pressure...this comes right from Ferrea.

I haven't run the Manley hollow stems so I can't say for sure.

Brian

I kinda figured. Don't think I'd want to risk it even in a mild build like I'm contemplating.

What is too much spring? 370 lbs open?

If you are interested in an easy path to decent power, Ma Mopar just announced 392 485 hp crate motors and install kit (computer, wiring,etc) for MSRP of about 11,500 for both motor and kit. I would guess you could get it cheaper by a couple of thou? There are a lot of advantages in going with a factory motor that was pulled off the regular engine line. Add in a good header and exhaust system, and it ought to be close to your goal. Ask around what the true cost is of a custom engine build and everything needed to match what you get with the crate motor, might be a cost effective way to go Plus the mileage , low speed torque and reliability will be excellent.

Whats a good running Scatpack Challenger running? Hight 11s?
At 4400 lbs take 1000lbs out and high 10's?
good converter, long tube and gears.
Matt

hi guys, not sure what this cuda will do when finally streetable. whipple supercharged 6.4 crate hemi built by arringtons. backed by a small block 727 auto. dyno at just over 800 hp. 3 inch tti exhaust, has a/c, installed in a 70 cuda body. all creature comforts. heated and power seats, tilt column, alpine stereo, uconnect, 4 wheel disc, rack and pinion, new tech dash RTS RESTOS DAY GLO CLUSTER. 3:55 gears, moser axles, randys chunk, and much more....

Just ease into the throttle when you go for your first ride, because if you put sticky tires on that beast you will quickly find the weak link in your driveline. I would love to be there when you do it

thanks pete still trying to finish the custom wiring and interior. plus fuel system routing. 1/2 inch aluminum line and walbro 262 pump in a ricks tank for fuel injection. ordered a helcat airbox will be a tight fit in cuda bay. might have to reconfigure alot. using the square hole in rad support for the extra air inlet. have over 85k in project now. motor and trans plus holley wiring and computor was 32k already dyno tuned. learning real fast how to convert new to old. cool thing is factory gas peddle will work with a throttle cable to the black box 2003 ram plugs right into cuda dash firewall. to make lokar cable kickdown work. lots of engineering. using a 2001 pt cruiser fuse panel with relay for the necessary electric fans,supercharger electric pump, fuel pump , and more. big project. should run smooth big power and decent mileage.

rtsinc, Have you considered an OD trans ? I know it is another hit in the wallet, but the revs with a 1/1 high gear will be 3000+ on the freeway and the noise might be be a little bothersome, along with poor gas mileage. Hughes has a lockup GM trans that will hold the torque. Not sure if they have the matching bellhousing for the Hemi, but if they do that is one stout trans.

4L80E would work wonders in that combo, but so would a NAG1.

Hmmmmm, that is worth a comparison post,,,