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Discussion Starter #1 (Edited)
Finally got around to buying a bare chevy 350 and taking out the old 383 that has a cracked starter ear mount. Im looking to make a 500+hp car, 500+tq on a 4 speed auto. This is going to be a street/strip.

Read bunch of posts here, sounds like everyone has opinions on afr's dyno website. I'm considering using this combo, anybody know if the numbers are accurate?:

383 cid Small Block Chevy Package
503 hp, 517 tq
AFR 195cc Street Cylinder Heads
9.5 to 1 Compression
1 3/4” Headers
Edelbrock rpm performer #7101 and 0-4779 750 cfm Holley Carb
Comp Cams Hydraulic Roller Cam #12-433-8
MSD Distributor 36° Timing
93° Octane Pump Gas

also saw this combo on ryanscarpage.com:

Displacement: 383 cu. in.
Carburetor: Barry Grant Silver Claw 750
Heads: Air Flow Research 190, with 2.02/1.60 in. valves, 190 cc intake runners, CNC porting, and extra hand-porting
Intake: Edelbrock Performer RPM
Camshaft: Comp Cams hydraulic roller, with 235/242° of duration @ 0.050 in. of lift, and 0.555/0.576 in. of lift (Corrected valve lift with 1.6:1 rockers is 0.592/0.614 in.)
Rockers: Comp Cams 1.6:1
Pistons: TRW forged
Rods: Lunati 5.7 in.
Crank: Scat 8060 cast
Timing: 36°
Comp. Ratio: 9.4:1
MAX HP: 525 @ 5800
MAX Torque: 535 @ 4200

and this one:
Displacement: 383 cu. in.
Carburetor: Holley 750 double pumper
Heads: Air Flow Research 190cc Street
Intake: Air Flow Research FloPower RPM
Camshaft: Comp Cams hydraulic roller, with 230/236° of duration @ 0.050 in. lift, and 0.510/0.520 in. lift
Headers: 1 3/4 in.
Distributor: MSD
Timing: 36°
Comp. Ratio: 9.5:1

MAX HP: 491 @ 5500
MAX Torque: 501 @ 4000

Im leaning towards the first combo from afr's site because I have the intake already. Is this combo accurate as dynod or a bunch of bs?

Also, I want to go with a beefed up 200r4 transmission 4 speed that supposedly can handle 700hp (have to call about the torque capacity it can hold.) Any body have any experience with this? Thought about going with the 700r4, but not crazy about the drop off from 1st to 2nd. My big thing is I want to have a trans brake for take off (hoping to play with suspension to pull wheelies) but still have the overdrive for cruising. Is this a possibility? I don't want to go with a Muncie because the 4th gear is the same ratio as my turbo 350 3rd gear and it kills my cruising on the highway.

appreciate the help guys. this website is great!

btw im running a 373 posi, traction bars etc.
 

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I don't know, should be pretty close and I like that first combo.:yes:
 

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Go with a line lock for takeoff. Trams brake builds heat on the street. The 200r is capable but you'll need to put some parts in it $$$. 28" tire for the hi way and a 200 shot should wake it up nicely on the track.


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What are you talking about I have driven for years a car with a trans brake it only builts heat when you use it. Not when you driving it.
 

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Discussion Starter #8
i like the line lock for burnouts, but doesnt sound like it will help my launch enough for wheelies. rpms will be too low before the brakes give way. transbrake will be mostly for track when i go once in awhile. you mentioned increasing the compression. any reason to increase it if im already looking at these hp tq numbers on a 9.5:1? want to run on 93 octane.
 

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Well I built your first option you have listed from AFRs web site and it would run. Same cam and everything, I had it in a little 34 ford truck with a 3.50 gear in a 9" and it ran .740's to .750's in the 1/8th mile, the only thing I did different was put a dual tunnel ram on it because it made it look that much cooler!!!! I would suggest spending the extra money and buy AFR's rev kit, it's nice. I think if you put AFR heads on anything it's going to run. I'm building a 406 for my wagon and it will have the 195 heads on it. With the hydrologic roller cam you will have to use shorter pushrods also. I think you'll enjoy it


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I would suggest spending the extra money and buy AFR's rev kit, it's nice. I think if you put AFR heads on anything it's going to run. I'm building a 406 for my wagon and it will have the 195 heads on it. With the hydrologic roller cam you will have to use shorter pushrods also. I think you'll enjoy it
Gotta love those AFR's. I am using a 7.100 or a 7.150 pushrod in mine and it does run. I have an installed(not by me) but not ran AFR rev kit(#6150), pm me if interested(cheap). I ran the same part number on my last 71 Nova(11.60s) which I sold to a guy in New York years back.
 

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i like the line lock for burnouts, but doesnt sound like it will help my launch enough for wheelies. rpms will be too low before the brakes give way. transbrake will be mostly for track when i go once in awhile. you mentioned increasing the compression. any reason to increase it if im already looking at these hp tq numbers on a 9.5:1? want to run on 93 octane.
More power comes with compression!:yes: You can run 11.1 with 93 pump gas with no issues. My car is a right around 11.3 and I run on 91 pump gas with timing locked out at 39* with no issues at all!!!:yes:
 

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my 385 was 10.25, AFR 195s, (2) 450 holleys on a tunnel ram, .510 solid cam. 513hp/517tq. 1 3/4 headers, 34* timing on 91 octane.

very fun motor :yes:

it made 400whp and 390tq on the chassis dyno
 
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