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350, 383 dyno proven recipes

Discussion in 'The Garage' started by Mad-Dog, Apr 12, 2005.

  1. Mad-Dog

    Mad-Dog 1/2 ton status

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  2. 1977k5

    1977k5 3/4 ton status Vendor

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    Wow, #19 is almost exactly my engine. Same cam, distributor, pistons, compression ratio, but a 750 CFM modded Quadrajet and vortec heads. I don't think mine quite makes peak power up that high though. Nice post!
     
  3. tiger9297

    tiger9297 1/2 ton status

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    Great post. Very helpful as I am in the process of planning a new engine build. :waytogo:
     
  4. Jonny-K5

    Jonny-K5 1/2 ton status

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    i remember seeing this site awhile back. and i was just wondering where i could find it. good timing :waytogo:
     
  5. surpip

    surpip 1 ton status

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  6. Mad-Dog

    Mad-Dog 1/2 ton status

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    In response to the thread about "350 vs 383 reliability" and "Dirtwarrior17's comments, no pun intended surpip.....just wanted you to see for yourself how a 350 stacks up against a 383.
     
  7. surpip

    surpip 1 ton status

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    Ya? So it looks like i was right similar build 383VS. 350. 383 makes more power
     
  8. Smitty

    Smitty 1/2 ton status

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    Some great info! I sure could have used this info last year. It will make it easier on the next one! :)
     
  9. Mad-Dog

    Mad-Dog 1/2 ton status

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    Yes it does and at a lower rpm, i think the message that DW17 was trying to convey was that 2 similar builds of a 350 and 383 will make similar HP but the 383 will always make more torque because of the 1/4" longer stroke.
     
  10. BigBurban350

    BigBurban350 1/2 ton status

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    Eeek, those 5.565 rods on the 383's give me the willys.
     
  11. sled_dog

    sled_dog 1 ton status

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    5.565 is stock 400 I believe.
     
  12. 1977k5

    1977k5 3/4 ton status Vendor

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    5.565 rods are stock in a 400, but some people put them in 383's (they get the 400 crank and take the rods with it). This is really too short of a rod and 5.7" rods are so easy to come by that they are usually replaced with them.
     
  13. BigBurban350

    BigBurban350 1/2 ton status

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    All the better with 6" rods :D
     
  14. MTMike

    MTMike 1/2 ton status

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    Great info! Thanks!

    Combo 5 sounds alot like my engine w/ the huge cam and all.... The P.O. told me the compression is above 9.5:1 but I've yet to verify that.

    -Mike
     

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