merlin540

how much boost have you guys ran with the 1012 felpro receiver groove head gasket on alum head blower motors. the tune up looked good but the receiver groove is trying to push out of the head on the top of the chamber. would 12psi boost cause this or do you think excessive water pressure caused this. 30 psi water pressure at 125mph with 12 psi boost. <engine is 510 gen 6 canfield 119cc head 8.5to1 static compresion cocktailed fuel about 110 octane see ya putting spare engine on dyno today to put in tonight. thanks

WETTE VETTE

Are there any signs of detonation? Aluminum beads on the plug porcelins could mean light detonation which raises cyl pressures dramatically. Also if the exhaust valve is closing to early the cyl pressures can get high, especially at high RPM. Did anything else let go? Normally high water pressures let water get into the oil via intake gaskets. I have seen a lot of blown head gaskets on blow motors, and light detonation is usually the reason. If detonation is the culprit, the head gasket is a cheap fix compared to what could happen. If the gasket doesn't blow then something else takes the hit. Ouch$$$$

bobby daniels

I'VE USED TONS OF 1012 GASKETS AND HAD SOME DO THIS !!
MOST OF THE TIME ITS FROM NOT RETORQUE THE HEADS AFTER IT
WARMED UP AND COOLED OVERNIGHT ,THIS REALLY IS A PROBLEM WITH THIS GASKET ON SOME SET UPS ,ALSO BE SURE THE HEAD IS LOCATED RIGHT ON ,, WHEN ITS INSTALLED (NO LOOSE DOWELS ) DO LOOK FOR DETONATION THOUGH !
BUT WE MAKE 12 TO 15 ALOT WITH NO TROUBLE AND 8.5 APPROX. COMP,
GOOD LUCK JUST MY PENNYS WORTH !!!!!!!!!!!!!!!!!

merlin540

thanks guys dynoed spare bullet yesterday made 950hp 900ft torque putting in boat tonight see ya

bobby daniels

WHAT SIZE AND TYPE BULLET WAS THIS ?? 900 FOOT LBS ECT.

merlin540

510gen6 canfield head hyd roller 8.5to 1 static compression

bobby daniels

ALL I CAN SAY IS I WOULD LOVE TO HAVE THAT COMBINATION, WOULD YOU PLEASE GIVE US POOR PEOPLE MORE SPECS. RPM, CAM SPECS., THIS WOULD BE A BIG HELP WOW!!!

SCARABJ

iTrader: (1)

Keith eickert went in and added the two extra studs on the the deck over the pistons on my 509s with canfields this is suppose to cure this problem with 10 to 15 pounds of boost we will see. they are going back togther this week also i think the gasket he uses is the 1047? cant remember. procharged stage three 10 to 12 psi gen 5 502 blocks. good luck

merlin540

thanks

Turbojack

I would say you had motor in detonation. I remember I had that same problem a number of years ago. When I would tear motor down after melting/breaking a piston head gaskets would look like that. I do not think water pressure had anything to do with it.

Why did you go with the canfield heads, instead of the dart or ??