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is this a good camshaft for my 383

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Old Dec 28, 2009 | 11:10 PM
  #1  
Goany's Avatar
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is this a good camshaft for my 383

im looking at this camshaft here r specs

INTAKE EXHAUST Valve Adjustment (Lash) - HOT .026 .026 Gross Valve Lift .546 .565 Lobe Lift .364 .377 Advertised Duration at .020 tappet lift 294 300 Duration at .050 tappet lift 256 264 Valve Timing At .050 Open Closed Intake 28.0 BTDC 49.0 ABDC Exhaust 61.5 BBDC 22.0 ATDC
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Old Dec 28, 2009 | 11:14 PM
  #2  
91interceptorZ's Avatar
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From: boise, ID
Car: 91 B4C "police special service"
Engine: L98 494hp
Transmission: tko-600 on order
Axle/Gears: 3.23 true trac
Re: is this a good camshaft for my 383

what brand of cam, and what is the grind number just out of curiosity?

Also what lobe serperation and rpm operating range??
and are you running carb or FI?? Tranny type and stall speed?? rear end gear?? car weight?? type of racing or street use?? Need more info.
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Old Dec 28, 2009 | 11:39 PM
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1989GTATransAm's Avatar
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: is this a good camshaft for my 383

That is a fair size camshaft. What are your goals for this motor?
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Old Dec 29, 2009 | 01:17 AM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: is this a good camshaft for my 383

Originally Posted by 1989GTATransAm
That is a fair size camshaft. What are your goals for this motor?
256 /264
Forget about idle quality
That is a serious cam even for a 383 ; hope you plan on low diff gears, a manual or a hi stall convertor so it will work
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Old Dec 29, 2009 | 01:36 AM
  #5  
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Re: is this a good camshaft for my 383

no stall beefed up 700r4 2.29 gear rear end and sorry i dont got lobe separation thats all the seller had listed but its part number is RA 102 3500 to 7200 operating range. I do plan on buying at least a 2500 stall
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Old Dec 29, 2009 | 02:38 AM
  #6  
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From: Saint Louis, MO
Car: 1988 Firebird Formula 350
Engine: L98 383 cubes Multipoint FI
Transmission: 700R4
Axle/Gears: Ford 9 inch with 3.70 gears
Re: is this a good camshaft for my 383

With durations and overlap in that range your 383 motor is probably going to need at least 10 to 1 compression ratio too. I recommend visiting Lunati's cam sizing program on their website.

Last edited by 383RAT; Dec 29, 2009 at 02:41 AM. Reason: Left a word out ;P
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Old Dec 29, 2009 | 06:31 AM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: is this a good camshaft for my 383

Originally Posted by Goany
2.29 gear rear end .. plan on buying at least a 2500 stall
Going to be a pig .
Engine will stall at 2500 but cam doesn't come in until 3500 ? With those gears you have to be doing 40MPH in 1st before the cam comes in.
What have you got in your engine that makes you think you can spin it to 7K?
With a 2.29 rear ; are you going to Bonneville?
6000 rpm with T700 and 2.29 rear =284MPH

Last edited by vetteoz; Dec 29, 2009 at 10:18 PM.
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