Announcement

Collapse
No announcement yet.

305>350

Collapse
X
Collapse
Who has read this thread:
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 305>350

    '85 305 TPI camaro

    could a 350 shortblock be swapped in, keeping the 305 TPI heads/intake/etc but what yr ECM/ fuel injectors would be needed to swap in because '85 350s used TBI

    i'm sure it has been covered 100's of times already but...

    '96 Camaro RS - project
    '97 Silverado Z71 - DD
    '89 Suzuki GSXF 750





  • #2
    i think the heads are different, but not positive.
    -Joel
    1995 Z28 M6 - AI226/234 - autocross ricer
    1984 Scottsdale K10 - 305/4bbl/4spd


    WTB List:Midwest Chasis DS Loop

    Comment


    • #3
      I think 305's had 58cc heads. so the compression would be alot higher

      Comment


      • #4
        ive heard that 305 heads on a 350 our poor mans race heads... i know it is all a direct bolt on no worries..
        go for it
        sigpic
        1998 blue/green trans am. ram air hood, foose speedsters.
        w/ couple go fast mods...

        Dont turn your back on the Wolf Pack


        Comment


        • #5
          It will bolt up fine as for the small details such as the heads cc size im not sure but from 55-86 I believe all sb chevy parts can be swaped for one another except one of the first sb chevys main bearings where slightly larger then the others forget which year but nothing you need to worry about good luck

          example 1967 chevy z-28s 302 was a 327 block with a 283 crank in it
          Last edited by mtuggle86; January 30th, 2009, 12:43 AM.
          01 NBM Base SS build #514 M6 Pat G/EPS 230/234 111+4 Cam, LS2 Heads, Tick Master,Extreme Chassis 8.8 with 4.30's, BMR LCA And Torque Arm, Edelbrock PHB, FIPK intake, Ported TB. Jet-Hot LT Headers TSP True Duals Tuned By SB Tuning

          Comment


          • #6
            Putting stock 305 heads on a 350 is stupid. Just use the 350 heads. A TPI is a TPI...doesn't matter if it came on a 305 or a 350, they are all the same. The only thing that was different was the injector size and the chip in the ECM. Just get yourself some 24# LT1 injectors and a AFPR and that will get you by until you can get an appropriate chip burned.
            Last edited by WMCCjames; January 30th, 2009, 06:58 AM.
            sigpic
            Turbo Charged LS1/T56

            Comment


            • #7
              yupper, agree with James on this one.
              When I upgraded my cam and intake assy.
              I swapped to 24# lt1 injectors.
              sigpic

              Comment


              • #8
                the real question is If the stock tpi intake and cam can support the extra cubes and take advantage of it and as for that I dont know but it will all bolt together
                Last edited by mtuggle86; January 30th, 2009, 04:58 PM.
                01 NBM Base SS build #514 M6 Pat G/EPS 230/234 111+4 Cam, LS2 Heads, Tick Master,Extreme Chassis 8.8 with 4.30's, BMR LCA And Torque Arm, Edelbrock PHB, FIPK intake, Ported TB. Jet-Hot LT Headers TSP True Duals Tuned By SB Tuning

                Comment


                • #9
                  Originally posted by mtuggle86 View Post
                  It will bolt up fine as for the small details such as the heads cc size im not sure but from 55-86 I believe all sb chevy parts can be swaped for one another except one of the first sb chevys main bearings where slightly larger then the others forget which year but nothing you need to worry about good luck

                  example 1967 chevy z-28s 302 was a 327 block with a 283 crank in it
                  FYI the 327 block was nothing more than a 350 block with a different casting number. The 302, 327 & 350 all used the same block as they all had a 4" bore, the only difference was the stroke of the cranks.

                  Originally posted by mtuggle86 View Post
                  the real question is If the stock tpi intake and cam can support the extra cubes and take advantage of it and as for that I dont know but it will all built together
                  Why would you use the 305 cam? Use the 350 cam, it should be fine and I'm sure the intake will flow enough.

                  James is the man, listen to him.

                  Comment


                  • #10
                    Originally posted by Orange Terror View Post
                    FYI the 327 block was nothing more than a 350 block with a different casting number. The 302, 327 & 350 all used the same block as they all had a 4" bore, the only difference was the stroke of the cranks.

                    FYI the 302 has a 327 casting # 4inch bore block and a 3inch stroke crank out of the 283 so yes it was the same as 350 block but since the 327 was the first one to use the 4 inch bore the 350 is really just a 327 block with a different stroke crank

                    Why would you use the 305 cam? Use the 350 cam, it should be fine and I'm sure the intake will flow enough.
                    I never said to just swap everything over all I said is it is its all compatible parts it will bolt right up and run but as for it being the best setup I dont know
                    Last edited by meissen; February 1st, 2009, 09:13 AM.
                    01 NBM Base SS build #514 M6 Pat G/EPS 230/234 111+4 Cam, LS2 Heads, Tick Master,Extreme Chassis 8.8 with 4.30's, BMR LCA And Torque Arm, Edelbrock PHB, FIPK intake, Ported TB. Jet-Hot LT Headers TSP True Duals Tuned By SB Tuning

                    Comment


                    • #11
                      Originally posted by mtuggle86 View Post
                      I never said to just swap everything over all I said is it is its all compatible parts it will bolt right up and run but as for it being the best setup I don't know
                      yes it will all swap. With the 350 I'm building, all the $$$ i stuck into my 305 in the top half. (over $1500.00 Cam, ported plenum, Edelbrock runners, Edelbrock intake, Holley AFPR, 24# injectors, Double timing chain and gear, new springs, new gaskets and such, and dyno tuned) It will all swap over to the 350 when I'm ready. LOL...I though i did more then I should, But at least it will all swap over.
                      sigpic

                      Comment

                      Working...
                      X