I, myself run ARP bolts with 12 kilos and Dragster got 13 kilos (100lbs) with ARP studs and flame rings. Gaskets are Fel-Pro blues.



Like Seppo's video shows, Y-Block's threads will survive and stock bolts surrenders at 14-16 kilos. So ARP's can stand that well.
Never did that stress test with ARP's, thou.


Hyvinkää, FI

I am painting inside of the runners with clear epoxy so it will not cloud up from the alcohol, I think it stands up to the heat, however I worry about a back fire so I made a popoff plate, funny about Lexan is that you form it with a metal break not heat.

PS how tight do you run the heads?

I wonder how is lexan intake manifold working. Alky engine runs cool but how it might work on daily driver?

You might want to get your cylinder heads tight enough with those compressions.


Hyvinkää, FI

NICE, Just finishing my Dragster Engine (Super Comp 234" wheel base), ECZ-G heads ported by John, 13 1/2  Comp, (3.810), CITE Crank heat treated ( 3.60 Stroke) Carrillo rods (6.380 with .927 pins and 1.850 bearing), Roll Master timing set (heat treated), Comp Cam (heat treated, 280@50, 5.50 lift), trend Tool Steel lifters, Trend push rods, Isky springs and retainers (180lbs on the seat), main caps cut flat with steel straps and ARP studs (all 5), Marine oil pan and timing cover, Home Made Lexan manifold, Hilborn 4 port (short) with belt driven pump, Speedmaster head studs (?), ATI Damper (sbc), don't know what ignition yet, 7" converter, short power glide, 7al msd box, this is a alcohol burner.           

Clad to see that somebody dont know yet, so I copy the longer version of details.
Driver is Jyrki Peltonen from Finland. I just am playing with wires and computer.

292 + 0.030 Ford Y-Block with two turbos and intercoolers and got 8-point injection.
Crank is forged truck stuff and has survived three big motor explosion. Pistons are SPR lightweight with scruby pin size, 1.059" compression height and rods are 6.5" long H-profile Callies Compstars.
Camshaft is 284/292 custommade with 116 lobe separation from Schneider or was before wear.
Cylinder heads are homeported iron heads with 1.92" intake and 1.70" exhaust titanium valves. Springs are from Comp Cams.
Intake and Exhaust manifolds are homemade also.
Turbos are 70mm Garrett / Holset HX's.
 E85 is injected with 8 x 1600cc injectors with 4,7 ohm resistors. Max ignition timing is 38 degrees at 5666 rpm / max boost.
Fuel pumps are 2 x Bosch 085 and regulator is from Holley.
2 x 60mm Throttle bodies are from two Mustang GT.
Engine management system is Megasquirt 3 with 60-2 trigger, CherryCorp HALL, Crane HI-6 and stock dizzy. Lambda system is Innovate MTX-L.
Transmission is race case powerglide with ~5000 Stall converter.
Rear end is stiff aluminum case with spool and 1:3.7 gears.
Tubular frame is homemade.

We dynoed 965hp / 1100Nm / 812 lbs ft with 2.2 bar / 32 psi boost (with stock main bolts) Current 1/4 mile record is 8.134 s / 170 mph. I think it was made with 1,9 bar / 27.5 psi.
We race in Finnish national series in Super Pro ET Class (because there is no other proper class to altereds without nitro or funny frame in here)
Engine must stand almost 50 pulls in every year and current combination has made about three years now, so there is something made right in Y-Block's bottom end.
It is quite stupid to race in ET class with turbos and very stupid to race 50 y old obsolete iron in anywhere but Y-Block starts to be quite famous in Finland's drag race scene.

 Meet us in https://m.facebook.com/HollowHeadsDragTeamFinland
 ...and keeping the sponsors in mind:
Remember to drink a lot of Keisari beer from Nokian panimo and if you need good engine machinist at the trip to eastern Finland, call to PP-Autokoneistus. 


Hyvinkää, FI

Hi, what's in the engine? how big?

Some limiter rattling, burnout clouds and eight second pulls for your long winter from last summer...




Hyvinkää, FI

MAN, ya'll have taken that car a long ways from the start of the project. Those long burnouts are going take its toll on the slicks. new pair in the future budget?
Great job!

Gary Ryan San Antonio.TX.

Compilation of all runs at last event. Wheelie bar does it's job well.
https://www.youtube.com/watch?v=YIZ0EXkLEFQ&feature=youtu.be


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

Three race weekends done, three times lost in first round. This is the latest. No the way we wanted to start the season, but at least new records are made... Not in this run though...
https://www.youtube.com/watch?v=nifjJfVSisQ&feature=youtu.be



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