400ci small block fuellie heads which cams should be used

Discussion in 'Engine Combos and Dynometer Database' started by Arjen, Apr 29, 2018.

  1. Arjen

    Arjen Well-Known Member

    Hello everybody

    I have a 400ci small block.
    I am going to fit 65 feullie heads.
    I have several intakes: Victor jnr/ torquer 2/ performer
    Does anyone here has any experience with this setup?

    Any help/ suggestions are very welcome
    Thx
    Arjen
     
  2. Mark Bradley

    Mark Bradley Da guy in Newbury

    That is a common type of question although without knowing what you intend to do with it we really cannot advise properly.
    Additionally you are not telling us what type of cam profile, exhaust you intend to run.
    Remember that internal combustion engine is really an air pump and thus the key is to match parts that allow it the proper flow for its use.
    I wish that it was that simple to give you the answer you asked but I don’t see it that way... I may as well just flip a coin.

    Cheers.
     
    Strictly Attitude likes this.
  3. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Grumpy likes to calculate everything out.
    Pick a HP & Torque number you want.
    A BASELINE.

    400 Chevy wants air in & out.
    Modern aftermarket heads makes it easier.

    Very few want to port cast iron heads today.
    Value is Low unless its Factory LS6 Rectangular Port BBC.
    Or Pontiac RAIV Heads.
     
    Arjen likes this.
  4. Arjen

    Arjen Well-Known Member

    I just want to use the " old " stuff
     
  5. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Yes. Lowest cost way.
    Grumpy does not know what that means.
     
    Arjen likes this.
  6. Arjen

    Arjen Well-Known Member

    Lowest cost: rebuilt heads: 900 € with accuiacquiring ( was 300 €)....
    Anyway want to use stock stuff as wel
     
  7. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Need to verify the condition of the Valveguides.
    Often wore out in old engines.
    Replacing valve guides is the most expensive part of rebuilding cast iron heads.
    Valveseat inserts if needed.
     
    Arjen likes this.
  8. Arjen

    Arjen Well-Known Member

    All done!
     
  9. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Grumpy works with 6000-6200 rpm max Redline on street Pump gas engines.

    If the 400 Chevy is using stock or cast rebuilder pistons I would keep the redline at 5500-5700.

    Keith Black Hyper Pistons can push to 6200.
     
    Arjen likes this.
  10. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    We use engine simulators here.
    Rick has the latest Dynomotion.

    I have a few Isky Hydralic flat tappet cams in mind.
     
    Arjen likes this.
  11. Arjen

    Arjen Well-Known Member

    Any help is greatly appreciated!!!!
     
  12. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    This pump gas engine or Race Gas 110 motor octane.?

    Grumpy chose a Danger Zone Cam in the other thread.
    Unlike Him.
     
  13. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Not feeling the best today.
    I usually do engine simulators on the Pontiac TA Forum.

    Rick & Grumpy do the Chevy here.

    Can post later my Isky Cam street friendly picks.

    They make real Danger Zone Race Cams for Pontiacs and Chevies.
    Unless you have Titanium Valves, Ti Retainers, & Ti Valvelocks you really do not want to go there.
    I have it.
     
    Arjen likes this.
  14. Arjen

    Arjen Well-Known Member

    Ok thank you
     
  15. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    We get into problems with High Rpm engines.
    Valvetrain instability.
    Premature valvefloat.
    High piston speeds.
    Durability issues.
    Parts costs.

    We work with Dynamic calculated compression ratios that work on the Street with 91-93 RM/2 pump gas.

    High Rpms another factor comes into play effective compression ratio.
    Really hard to prefict.
    Only safe bet is run 110 Race fuel at least.
     
  16. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Grumpy set up his site to learn.
    You can read 2 months straight to get through it all.
    I have done it a few winters back.
    We share personal projects also with our own threads.
     
    Arjen likes this.
  17. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    All 400 Small Block Chevies had cast iron cranks stock.
    So we want to work in 5500-6200 rpm Redline.

    Pontiac V8 had Cast Cranks too.
    But Nodular iron in early engines up to 1971.
    Mains bigger. Stiffer stronger crank.
    Can push to danger zone with right parts and special oiling mods I do thats not online anywhere.
    Will blow up otherwise.

    Since you have a class and teaching your students best to gear for Fast street Fun.
    I think.
     
  18. Arjen

    Arjen Well-Known Member

    Yep that is the plan. We will see....
     
  19. Arjen

    Arjen Well-Known Member

    We have 98 . That's it
     
  20. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    Your in Belgium.
    Like Dorien is too....he is a race nut too.
     

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