Jim, funny that you mentioned our Hollow Machine engine. We just sold that one to our friend in Tampere and it will power one customized '53 Ford that was originally four door sedan and it is now two door chopped custom. Time flies, but I doubt that we come to Columbus this year. We are afraid to be put to stick cars with carbs . Would be funny though, to see all you there...

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

Way to go guys, and to think that I was a witness to the original "Hollow Heads" engine firing up for the first time. Everyone keeps coaxing more horsepower and lower ETs out of our old powerplants. Would love to see you guys at Columbus! I just bet that someone would stick you in a car!

Jim (site owner)
'56 Club Sedan - Ted Eaton built 429 hp '292/318, '54 Sunliner - stock '302

Seppo

One thing about learning the hard way, you will not make those mistakes again. Not only is it expensive, but you don't get to race when your car is broke. I think your group has come a long ways from the hot rod. Keep the Faith, baby!

Gary Ryan San Antonio.TX.

Ferrea stainless steel 1.84 intakes and 1.70 exhausts. Comp Cams 942-16 springs without damper coils as they did't fit with non massaged guide bosses . Comp Cams retainers and locks. So, that exhaust valve broke simply because of too soft spring set up and valve beeing too large diameter for our stock bore size and hitting the corner of the cylinder wall. Nothing secret here, just old stupidity. Also, Harland Sharp 1.6 roller rockers helped lifting the valve too far... And causing several bend push rods. Push rod cup end breakings were caused by too wide ball ends as discussed in different topic earlier. So, we are learning the hard way and piece by piece, but be sure our next engine will be even more aggressive and records will be broken. If not the WR, atleast our own. We will double our injector size as now used duty cycles show that we don't have enough fuel flow with E85 and 1.5 bar of boost. And something else too . Visiting the dyno with time and money collected during the winter time...

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

Since the failure was caused by a broken valve..the question is, was it a used stock valve? And, what kind of valve springs were used? Are the valve keepers original factory etc? Ford only recommended a max of 5400 rpm for the standard stock component valve train. On the Dyno tests, was there indication of valve float ? All questions that need to be answered to avoid a nasty repeat episode..

Paul

...or buy the aluminum heads and stroke the crank.


Hyvinkää, FI

Paul, you are right about money spent. With more money and time we could have gone to dyno more often, but it takes 500 euros each time.

Chuck, you are right about that bottom end. It really is stout and can handle a lot torque and horsepower if balanced right. Even with stock bolts. Don't remember if Hutz is using ARP stud in his engine, but we had stocks. And that our mishap did'n come from bottom end...

And, about our expectations... Sure, we expect a lot but we still are sure we will do it. It's just to get all things together and working right. Going fast isn't easy or cheap, but it's fun! Is there really any point to stick with carbs and without boost .

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

I'm not sure what they did to the bottom end but it was pretty stout. If it didn't have a girdle and reworked caps/bolts it probably will soon. They are far below their fastest, more is yet to come.

Are you following the super horsepower twin turbo pickup on the forum? I'm still waiting for it to over test its bottom end. Chuck

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Sorry to hear that Hollow heads lost their engine block.. However, have followed their exploits here & in Y-Block magazine for some time. Sorry, but I'm not surprised, as I think they have been expecting to much. This is a case of to much Turbo charging & not enough time & money spent on the engine under the turbos...

Paul

Seppo

That is a huge turbo sticking out of the orange chevyII, and does the blue mopar run 8.0's, Nice looking top quality cars. Looks like it was quite a show. Hope you get your turbo engine back together soon. Any plans to get the kids a JR dragster?

Gary Ryan San Antonio.TX.