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  1. #1
    427
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    Default SBC 383 Cam thoughts

    Tried to revive Pauls old cam thread but no luck..anyway..How does this cam sound for an 11 to 1 383 sbc with 195 AFR Heads. Want to drive it daily. Thinking it will need bigger than the 3500 converter i have.
    Car is a 1 tonner. 3.5 gearing..
    P/n 08-444-8. 248/254 @50
    110 lobe sep. 562 580 lift..
    I know Paul will say -8 sucks...but i already have the cam. Thoughts please..Thanks..

  2. #2
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    HI
    AFR pre eliminator OR Eliminator, then street or Comp version of heads . Big flow differences between them all .
    Most of the cam companies are basing performance on 350 cu in .
    Stall for street plus or minus 3500rpm .
    Convertor selection with slightly smaller style heads can be a little lower in the stall .

    Whats clear thou its difficult to have a full drag style and operate street and do well at both . This came from comp cams .
    It depends on whats your priority A lot of street 195cc heads Or a lot of drag 210cc + heads .
    Different cu in and flowing heads will peak the same cam a little different eg where peak Rpm TQ and HP occur

    Building my street setup NOT a strip setup
    400cu in
    afr 195 comp eliminator 308cfm AT .600lift [lets the smaller cam breath a lot]
    cam is 230-236 around 585 lift HR 1.65 r/ratio
    10.5 CR ----------some where around max for the cam and pump fuel
    2800 stall
    26.4 inch tyres
    3.6 gear
    Hughes Transmissions recommended not to cruise more than 600rpm below stall at 60mph /100kph
    Comp Cams said 230/236 can have 2600 stall but absolutely no less and the next 10degrees of cam 236/242 required 2800 stall minimum
    Last edited by swampy; 08-09-2018 at 12:35 AM.

  3. #3
    Do you ever leave? paulzig's Avatar
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    If you already have it, it would be a shame not to put it in.. You have 11:1 compression so that'll save you some, make sure it is advanced 4 degrees on the pin so 106ICL,,

    It'll be a fun daily driver thats for sure.. Oh and you will use a bit more fuel

  4. #4
    427
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    Thanks Paul. It will interesting to see what the little 195 heads can do...i think they will hold up quite well..

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    427
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    Thanks Swampy too..a lot of good info there..

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    Do you ever leave? TRIKHQ's Avatar
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    Quote Originally Posted by 427 View Post
    Thanks Paul. It will interesting to see what the little 195 heads can do...i think they will hold up quite well..
    I built a 383 made 542HP with a 254/260 solid roller cam , stock AFR 195 heads. 11.4 CR. I also built a 405 SBC with stock AFR 195 head, Vic Jnr man , 248/254 solid roller cam, 11.3CR made 552HP , so can make nice power and both very drive able, convertor needs to be around 4500 .

    Cheers Mario
    Last edited by TRIKHQ; 09-09-2018 at 06:02 PM.

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    427
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    Thanks Mario. They are nice numbers. Just shows how far things have come when an animal becomes driveable..sort of!

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    427
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    Paul if you are listening..please start another thread. You are the king..

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    Quote Originally Posted by 427 View Post
    Paul if you are listening..please start another thread. You are the king..
    Nah, Im shit... I can only work out timing numbers and some basic numbers, people out there a lot better.

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    Hi
    427
    Its amazing but expected all the American magazine dyno sheets are 600HP+ for very very similar spec to TrikHq example . Although the RPM where the peak Tq and Hp is probably correct from the USA examples .

  11. #11
    427
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    Hi mate. I'm thinking 600hp from an old school small block would not have good street manners! Especially only 6 ltrs.. But getting the best of both worlds would be nice..

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    Do you ever leave? paulzig's Avatar
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    You'll be closer to 500 than 600 with what you have though... Which should be enough for a street car/daily..

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    427
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    Agreed. 500 is plenty for the street.
    What is the reason for 4 degrees advaned Paul?

  14. #14
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    HI
    My comp cam roller is ground with 4deg advance already [cam operates best slightly earlier] . Given that its not the biggest cam I`m installing at 4 degrees retarded to encourage slightly later operation . There maybe other reasons why also I`m assuming .

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    Advancing the camshaft will produce more mid-range torque, and allow the engine to accelerate through the rpm range much quicker.
    If you were to install the cam @ 110* it would still operate fine, but make average power and slower rpm acceleration.

    The exhaust note will be slightly lumpier if the cams advanced also

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