CONFIRMING SOME MILLING NUMBERS

[Nacho-RT74]

I wish this post just to confirm some numbers because they have been stated in several diff topics, but they are everywhere. better in one post Don't you think ?

Small Block

Engine/Head Type                                       Chrysler 273-318ci engine      Chrysler 340-360ci engine
                                                                57-61cc chamber                      63-71cc chamber

Amount to mill to reduce                                       
chamber volume by 1cc                                          .0053                                  .0048

Proper amount to mill port sides
of intake for correct alignment                                 .0095                                  .0095
and sealing for each
.010 removed the on heads or block

Proper amount needed to mill
intake ends for correct alignment                              .0144                                  .0144
and sealing for each .010 removed
on the heads or block

[Nacho-RT74]

Big/Raised Block

Engine/Head Type                              Chrysler B/RB engine                Chrysler B/RB engine            Chrysler B/RB Max Wedge Engine
                                                    66.5cc or 73.5cc chamber          79/81/83cc chamber               81 or 86cc chamber

Amount to mill to reduce                                       
chamber volume by 1cc                                      .0062                              .0042                               .0050


Proper amount to mill port sides
of intake for correct alignment                             .0123                              .0123                                .0120
and sealing for each
.010 removed the on heads or block

Proper amount needed to mill
intake ends for correct alignment                       not required                       not required                        .0170
and sealing for each .010 removed
on the heads or block

[Nacho-RT74]

then we have

1 mm milling job is aprox .03937" ( rounding to 0.04 ), so 1 mm would mean AROUND 9.5 cc less

what other numbers are required to be on right track and calculations ?

are all these numbers right ?

source:
http://www.mopar1.us/mill.html

[dstryr]

I understand that most stock blocks are taller than blueprint deck height, so if you mill stock heads and the deck height is still above blueprint, wouldn't the the intake line up better, depending, of course, on the amount you are taking from the heads?

[Nacho-RT74]

on my built I will have to check for sure the deck height before any head job of course... Just wanted to post the numbers what are evrywhere on one only post

[dstryr]

  Just pondering the idea.  I have never known if those figures were for a blueprinted block or a general rule of thumb because if you deck a 'stock' block .020" and go from a steel shim to a .039" Felpro gasket you are essentially at the same place with the heads in relation to the intake.