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Doing some stupid shit to an old datsun head

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    I've got another junk U67 casting here I'll take some pics off for a before/after comparison.

    This motor will be going on Bill Hansons engine dyno in a couple of weeks, so no guess work as to what it makes.

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      Amazing! When doing it all by hand, how to go about making each of the chambers/ports the same?
      Experience, practice & measurement.

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        Gotta smash through a freshen up on a set of subi heads this morning, then back onto the datto this arvo.

        Hey did almost loose his hand in a machine, maybe he got the doctors too upgrade it.
        It got downgraded a bit, I have to take a 10 min break every hour or I pay for it bad at night, probably a good thing tho, before I'd just grind for up to 4 hrs without a break, long term that's not a good idea!
        My thumb still has limited movement, it's settled down to maybe 50% of normal movement, fortunately the movement it has is mostly in the arc I need it to be in!

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          Gotta smash through a freshen up on a set of subi heads this morning, then back onto the datto this arvo.
          Scratch that, need a cam & seals for the subis, won't get them till tomorrow, so datto is go for this morning.

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            Chambers all done bar final sanding - I'll do all the sanding at once when I'm done with all the carbide work.

            Took a few pics of the junk head, it's been messed with & cut for bigger valves, but you get the idea:







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              Nice, that looks really similar to what i've seen done to pug 205GTI heads. Except the spark plug position on the pug isn't as nice as that.

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                Cylinder head porting porn. Outstanding.

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                  Grinding, plus a bit of grinding & some grinding









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                    Top work, absolutely fantastic.

                    I also love how they look like derpy faces...
                    this signature intentionally left blank

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                      Great work TK!
                      1970 RX2 coupe, 13b turbo.
                      1973 Cortina, 5.0 Windsor
                      1974 808 sedan, 12a Bridgeport
                      1976 Datsun 260c Coupe

                      I've got a 1968 XT Falcon.........!

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                        special hi performance spark plugs
                        Originally posted by 50RTD
                        Dave, have you uploaded the data from the carby?

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                          Intakes all done bar sanding, nothing new there so no pics.
                          3x exhausts to go, then on to the intake manifold - I'll have to relocate it higher up on the head & dowel it into position to get a straighter shot down the runner.

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                            Originally posted by TK View Post
                            Is that a crack?
                            Is it crazy how saying sentences backwards creates backwards sentences saying how crazy it is?

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                              Where? I see scribe marks and a few scratches that will disappear when it gets skimmed at the end. Oh in that left hand water jacket. Hopefully just a scratch.

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                                Originally posted by DaveBxGT View Post
                                Where? I see scribe marks and a few scratches that will disappear when it gets skimmed at the end. Oh in that left hand water jacket. Hopefully just a scratch.
                                From just left of centre up and into the chamber. (It obviously isn't, otherwise people far smrter than I would have picked it up)
                                Is it crazy how saying sentences backwards creates backwards sentences saying how crazy it is?

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