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Old 09-22-2010, 05:26 PM   #1
ray homa
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Default advice for pump gas 383 sbc

63 chev. nova, 9.7comp. 383, single plane vic. jr. holley #3310 vac. sec, 13/4 headers, 3:91 gears, 350 trans., 3000 stall, need to know best heads and cam either hyd. roller or solid roller for street , strip, want to get the most out of this pump gas mtr. thanks ray
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Old 09-22-2010, 05:45 PM   #2
chrisw1173
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Default Re: advice for pump gas 383 sbc

Here we go again....... Ok .. More comppression ! Ditch the vec.sec carb.... Port the intake or depending on the rpm you want to turn go to a super vic. As far as heads.. again that depends on what rpm you mant to turn . and there is alot more to be gotting from pump gas then what you are going for.
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Old 09-22-2010, 05:51 PM   #3
67RS502
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Default Re: advice for pump gas 383 sbc

Quote:
Originally Posted by chrisw1173 View Post
Here we go again....... Ok .. More comppression ! Ditch the vec.sec carb.... Port the intake or depending on the rpm you want to turn go to a super vic. As far as heads.. again that depends on what rpm you mant to turn . and there is alot more to be gotting from pump gas then what you are going for.
ditto

How much power you lookin to make?
How fast you wanna run?
__________________

67 camaro
pumpgas 373s:
420 - 641hp BretBauerHRcam 1.40, 9.90 @ 135
best mph 136.5
383 - 490hp 224/224HRcam 1.56, 10.77 @ 124.6
502 - 626hp 252/263HRcam 049s 1.44, 10.08 @ 132.7
62 Nova cruiser
383/200-4R/12-bolt w 373s
224/224 HR cam
1.57 10.97 @ 121.2
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Old 09-22-2010, 06:42 PM   #4
ray homa
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Default Re: advice for pump gas 383 sbc

looking for 520 hp, trying for high 11s , would be ok with higher stall converter if needed, am runing p235 60r m/t drag radials.
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Old 09-22-2010, 06:49 PM   #5
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Default Re: advice for pump gas 383 sbc

dont want to change pistons, for higher comp. am using 64 cc, 185 int. edel. alum. heads now, comp. flat tapp. hyd. cam, 240-246 @.050, .507- 510 lift.
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Old 09-22-2010, 07:07 PM   #6
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Default Re: advice for pump gas 383 sbc

Get up to 11:1 with head gasket change or milling heads, 4:11 rear gears and an ATI 5,000rpm stall which will do just fine on the street (actually builds less heat than some of the $300-$450 3000-3500rpm stalls) and go with this Crane Solid Roller and matching components (for your usage I would use a different spring than what Crane has listed) if this is a N/A build. This cam will make GREAT torque and a 10.5:1 to 11:1 383/400

118411 std firing order
290/306 @.020"
260/268 @.050"
184/183 @.200"
.670"/.625" with 1.5 rockers
106 lobe seperation
.012"/.022" lash (use .018" on exhaust for street or constant high rpm)

Yes 11:1 will be fine with your aluminun heads
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Old 09-22-2010, 07:31 PM   #7
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Default Re: advice for pump gas 383 sbc

you don't need 520 hp for high 11s.
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Old 09-23-2010, 01:08 AM   #8
Mills588
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Default Re: advice for pump gas 383 sbc



A write up on my dads 3900lb... pump gas 408ci SBC. Column Shifted. Might help a bit? I'd bump your compression up at minimum... you can easily go more with aluminum heads.

- Profile for Doug Mill’s ’57 Bel Air “Sleeper” -

Purchased in May 1972, my ’57 Chevy has gone from being a normal Bel-Air to one that is quite unique. Being a performance enthusiast, my goal was stock appearance with muscle car performance. The following summarizes the changes why this car is such a hit at the drags, and most likely the quickest street driven ’57 Chevy in the Pacific Northwest.

The Mechanicals ================================================== =============================
Engine – On June 30th, 2000, a new 408ci 4-bolt main small block, built by Dale Green of “DG Machine” in Auburn, WA, was fired up for the first time. The engine utilizes the following components:
Air Flow Research 210 “Comp Pkg” 100% CNC machined heads (#1103) with 65cc combustion chambers, 2.08/1.60 valves with 8mm stems and angle plugs. Specs at: http://www.airflowresearch.com/index.php?cPath=24_33
J&E forged flat-top pistons - With the AFR heads the resulting compression ratio is 11.2:1.
Eagle forged crank and 6-inch rods, internally balanced rotating assembly.
Competition Cams Extreme Energy "XR300HR" hydraulic-roller cam and lifters –
Lift: .562 int /.580 exh Duration at .050”: 248 int / 254 exh
Complete specs at: http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=163&sb=2

Competition Cams “Pro-Magnum” 1.52:1 roller-rockers (7/16” studs) and Competition Cams push rods.
Edelbrock “Victor Jr.” aluminum intake manifold (#2975), port-matched by DG Machine in Auburn, WA.
Holley 650 “Double-Pump”carb (#4777) with Stage 3 build-up by Brad Urban’s “The Carb Shop”, now flows at 794 cfm.
A Barry Grant ” phenolic spacer is used and the carb is fed via Mallory “Series 140” electric fuel pump with regulator.

MSD “Pro-Billet” distributor (#85551): http://www.msdignition.com/product.aspx?id=5679
MSD 6AL ignition box with rev-limiter and MSD “Blaster 2” coil. Note: All shifts made at approx. 5800 rpm.
Accel 8mm “Extreme 9000” black silicone plug wires routed via R&M looms to AC “RapidFire” #5 spark plugs.
ATI “Super Damper” (7-inch) balancer with Tavia pointer.
Chevrolet GM high-performance air cleaner lid utilizing a K&N base plate and K&N 3” tall air filter.
For cooling: 4-core "High Efficiency” Desert Cooler radiator, PermaCool 17” flex-fan with shroud, and an Edelbrock “Victor Series” aluminum water pump (#8810) with 170 degree thermostat.

Exhaust System – Hooker “Super Comp” 1-3/4” full length headers (#2112-1HKR), ceramic coated, feeding 3" exhaust into Walker Dynomax Super Turbo mufflers, 3" in and out (#17769). Note that the headers tuck up nicely, even with the frame.

Transmission - TH400 built by Cary Holmgren of Tacoma, WA, coupled to a B&M “Quick-60” converter with 3600 stall. Note that the on-the-column shifter utilizing a Lokar linkage #ACA-1800, is still retained to preserve stock appearance!

Differential – ‘69 Camaro 12-bolt "Posi" with 4.10 gears, Moser axles with 1/2” studs, and Eaton heavy-duty center section.

Tires / Wheels – Street: 225/70-14 radial whitewalls on 6" rims. Strip: M/T 11.50x15 ET Streets on 8” rims with 4.5” offset.

Suspension – Nothing fancy!! Comp Engineering drag shocks set at 80/20 up front and good ol’ Gabriel "Hi-Jackers" air shocks with separate fill-lines control 5-leafwagon springs in rear. For brakes, late ‘70’s GM mid-size frontdiscs with stock drums in rear. Car has never used traction bars and has never had a problem with "wheel-hop"! It launches straight!

The Cosmetics ================================================== ==============================
The Sierra Gold with off-white acrylic urethane paint (4 color, 2 clear) was applied in September 1984, thanks to Bill Crandall in Marysville, Wash. Ciadella Interiors helped out on the front seat (rear seat is original!), door panels, and headliner. Stainless polishing by Mike Domoracki in Texas, some rechroming, and parts from Classic Chevy Club, International (I am member #3193), plus a little elbow grease from yours truly did the rest.

The Results ================================================== =================================
The above components make my innocent'57 manage a VERY respectable 1/4 mile result …

On a cool October 10th, 2009, the car ran its best-to-date ET, mph, and 60-ft …
11.385 secs @ 118.66 mph / 1.560 60-foot … lifting the left front 6” in the process!



In Summary ================================================== =================================
NHRA requires a cage for cars running sub-11.50 ETs, so I’ll be short-shifting. J Considering the car weighs 3850 lbs. with driver and clicks off ETs in the 11’s, I feel I've accomplished my goal of stock appearance with muscle car performance.

Finally, I must give a BIG "Thank you, Honey!" to my wife, Sherrie, for her patience and understanding and in letting me “do my thing”, making this column-shifted, whitewall-tired ’57 one of the quickest “sleepers” in the Pacific Northwest. I love it!

Doug Mill
Bellevue, Washington
__________________
N/A 8.77 @ 153.4 * 1.26 - 60'
Power & Parts by DG Machine!
3410lbs & Leaf Sprung!
Jeff@DGDragparts.com
425-327-0810

NOW AVAILABLE: Wilson Manifolds!

Smith Bros, ATI PROCHARGERS, AFR, Dart, Brodix, CFE & BMF, ProFiler, Manley, Callies, Erson, JE, Ross, Wiseco, Ferrea, Moroso, Pro Systems, Comp Cams, Erson, Hughes Performance, Trans- Specialties Full Line, ISKY, Strange Engineering Entire Line, TRZ Suspension Components, Smith Racecraft!.. and more!
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Old 09-23-2010, 03:47 PM   #9
67RS502
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Default Re: advice for pump gas 383 sbc

Quote:
Originally Posted by Camaropwr View Post
you don't need 520 hp for high 11s.
thats it!
Do you know your race wt? early chevy II should be light.
400hp will put you in the 11s
and 500hp in the 10s
(I only speak flywheel)
Need to get the comp up with a small chamber "good" head.
and a cam around 23X/24X will make 500hp
__________________

67 camaro
pumpgas 373s:
420 - 641hp BretBauerHRcam 1.40, 9.90 @ 135
best mph 136.5
383 - 490hp 224/224HRcam 1.56, 10.77 @ 124.6
502 - 626hp 252/263HRcam 049s 1.44, 10.08 @ 132.7
62 Nova cruiser
383/200-4R/12-bolt w 373s
224/224 HR cam
1.57 10.97 @ 121.2

Last edited by 67RS502; 09-23-2010 at 03:49 PM.
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Old 09-24-2010, 08:06 AM   #10
ray homa
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Default Re: advice for pump gas 383 sbc

am using edel. perf. heads- 180 int. runner, comp. hyd. cam 240-246 @.050, 507-510 @.050, what would better heads and cam for my low comp. comb. be? thanks ray
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Old 09-24-2010, 09:49 AM   #11
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Default Re: advice for pump gas 383 sbc

Quote:
Originally Posted by ray homa View Post
am using edel. perf. heads- 180 int. runner, comp. hyd. cam 240-246 @.050, 507-510 @.050, what would better heads and cam for my low comp. comb. be? thanks ray

I saw a guy run 11.20s with those heads on a flat top 383, with a ati 8 inch converter. i think it had a comp 252/260 solid in it. i might try and find some old post about it. It was in a elcamino
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Old 09-24-2010, 09:57 AM   #12
Darracq
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Default Re: advice for pump gas 383 sbc

http://www.nuibe.com/elco/main.html


Ok it had a crane 242/ 250 solid. and ran a best of 11.39
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