abelincoln Posted November 3, 2014 Share Posted November 3, 2014 After staring at the insides of the H-12 engine for almost a year, (hey! the end is in sight) I thinking if I had more money than I knew what to do with and a large shop that could make complicated castings, a better V-12 could be made just a bit wider and larger with: 7 main bearings longer throw crank for increased stroke individual crank throws for each cylinder for an even fire engine bigger bore, I'd like to see about 350 cu in total un-siamesed intake ports for individual port fuel injection hotter cam, probably solid lifters improved cooling 8.5:1 compression heads of Aluminum. crank trigger sparkOther ideas? Or are we all happy with what we've got?Abe Link to comment Share on other sites More sharing options...
Beltfed Posted November 3, 2014 Share Posted November 3, 2014 The best thing I know of in this real word is H&H Flatheads. They can make the old girl make more horses, but nothing like you (and I) would want. About 185 hp and unsure how much of a hand grenade it is. North of 25 grand for the work. I've got a pic of their blown v12 setting around here someplace. I'll post if I can find it. Link to comment Share on other sites More sharing options...
C. Douglas Johnson Jr. Posted November 3, 2014 Share Posted November 3, 2014 I had H&H do a motor for me and it was horrible. 9 months late, first fire up spark plug shot out of head, pulled head and redid. Fired up again within 200 miles the keeper for one valve came loose hammering head and cracking an aluminum head. Pulled both heads and replaced with steel after putting new valve keeper, and valve in and now running gorgeous. They did not exceed the budget given which was no way close to the 25,000 quoted above. They have an excellent reputation with v8s and 4cyl but not with 12s Link to comment Share on other sites More sharing options...
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