sbc engine

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  • D1RT087
    Junior Member
    • Jan 2012
    • 14

    #1

    sbc engine

    could some one tell me what HP & TQ this engine will have?

    SBC 350 60 over
    3.48 scat stock replacement crank
    5.7 I beam float rods
    10.9:1 speed pro pistons
    cam - lift .552 / .561 dur. @ 50 254 / 259 lobe sep. 106
    Alum. heads - 190cc 64cc chamber 202 / 160 stainless valve straight plug
    stainless steel full roller rockers 1.5
    hurricane intake
    holley 3310 750 carb
  • Egoracing
    Senior Member
    • May 2007
    • 4852

    #2
    Originally posted by D1RT087 View Post
    could some one tell me what HP & TQ this engine will have?

    SBC 350 60 over
    3.48 scat stock replacement crank
    5.7 I beam float rods
    10.9:1 speed pro pistons
    cam - lift .552 / .561 dur. @ 50 254 / 259 lobe sep. 106
    Alum. heads - 190cc 64cc chamber 202 / 160 stainless valve straight plug
    stainless steel full roller rockers 1.5
    hurricane intake
    holley 3310 750 carb
    You are really close to the specs of the 604 crate motor and should be in the 375-400hp area.

    Comment

    • D1RT087
      Junior Member
      • Jan 2012
      • 14

      #3
      I was hoping for 450 HP . I for got if it helps the pistons is .125 dome. thanks for the replys

      Comment

      • sj valley dave
        Senior Member
        • May 2007
        • 1016

        #4
        Doesn't help at all..10.9:1 is just what it is...Actually better if you get it without domes...I'm assuming it is a solid flat tappet cam...I'd be guessing 400-425 hp...

        Comment

        • D1RT087
          Junior Member
          • Jan 2012
          • 14

          #5
          yes the cam is solid, I hope that is enough HP to run with them at my track.

          Comment

          • C10
            Senior Member
            • Nov 2008
            • 359

            #6
            The Hurricane intake is hurting you all over the curve, they are not a very good piece and have flow numbers all over the board. I would stick to a Vic Jr, or similar.

            Comment

            • D1RT087
              Junior Member
              • Jan 2012
              • 14

              #7
              Originally posted by D1RT087 View Post
              could some one tell me what HP & TQ this engine will have?

              SBC 350 60 over
              3.48 scat stock replacement crank
              5.7 I beam float rods
              10.9:1 speed pro pistons
              cam - lift .552 / .561 dur. @ 50 254 / 259 lobe sep. 106
              Alum. heads - 190cc 64cc chamber 202 / 160 stainless valve straight plug
              stainless steel full roller rockers 1.5
              hurricane intake
              holley 3310 750 carb
              I would like to THANK every one for there reply's. How could I get 450 - 500 hp and still use some of the parts that are listed. I would like to still use the heads and piston if i could. is the cam to big? I have to keep the carb they tech it.

              Comment

              • Egoracing
                Senior Member
                • May 2007
                • 4852

                #8
                2925 Victor intake would be a big help and have the heads cut to raise compression.

                Comment

                • sj valley dave
                  Senior Member
                  • May 2007
                  • 1016

                  #9
                  I agree with Ego...If you swapped out the intake for a Super Victor and could cut the heads for more compression that cam would work a whole bunch better...With that cams profile and a little more compression, there's no reason you couldn't get 450-475 HP...What brand and model of heads are these?

                  Comment

                  • D1RT087
                    Junior Member
                    • Jan 2012
                    • 14

                    #10
                    the heads is prostar from j and c cylinder head exchange off of eBay. I know alot of people said not to buy cheap heads but i just wanted to get better heads than the stock 041 that i had. I could not afford $1000.00 heads. I am on an budget engine build. The engine we had before had .100 dome speed pro piston, speedway cam # 915-14104 and the 041 heads the rest of the engine was the same. I just thought that if i went to the .125 pistons , JR motorsports cam # 111 , and the bigger heads i would get at least 450hp. I seen in the c/t mag. where they built an street stock engine that made 450 hp for $2500 i think it was.

                    Comment

                    • D1RT087
                      Junior Member
                      • Jan 2012
                      • 14

                      #11
                      stock car driver if you are talking to me I did read what you said . Thanks for adding me to your f/b friends list. I did not know that going from a 2 barrel to a 4 barrel carb to an engine that it would add that much hp to it

                      Comment

                      • sj valley dave
                        Senior Member
                        • May 2007
                        • 1016

                        #12
                        Going from a 500 4412 2 bbl to a 750 4 bbl you are really doubling your CFM...If you measure the air flow through a 2 bbl carb with the same amount of mercury a 500 2 bbl flows approximately 335-350 cfm. compared to a 750 4bbl...That is a big reason why a 390 cfm 4bbl will make more power than a 500 2 bbl..They are tested at different amounts of vacuum...It is like bolting on 50 hp, minimum if you have the cam and heads..

                        Comment

                        • D1RT087
                          Junior Member
                          • Jan 2012
                          • 14

                          #13
                          Is the prostar heads better head than the stock 041 heads. I paid $619 free s/h for the complete pair . The seller had all good feedback on the heads. I started to fix up he 041 but by the time i bought all new parts i would had just as much money in them as the alum heads. the rules says steel head but no one pulls any one. The full tear down on the motor is $1500.
                          Last edited by D1RT087; 02-17-2012, 06:57 PM.

                          Comment

                          • sj valley dave
                            Senior Member
                            • May 2007
                            • 1016

                            #14
                            I agree with Parrot on that those heads are aluminum and you get some weight percentages, but as far as head flow, not that sure they are much better than the 041's, but even so, with 041's and a better intake you will be 450 hp or so...

                            Comment

                            • D1RT087
                              Junior Member
                              • Jan 2012
                              • 14

                              #15
                              Thanks for all the info. is the stainless steel roller rockers and HD stud girdles from skip white performance good engine parts?

                              Comment

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