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Author Topic:   head gaskets?
ss#4
Member
posted March 29, 2004 10:39 AM
does anyone use the felpro 1094s? They are discribed as "a embossed shim with presision rubber coating". I normally use the 1003 but would like to gain a little more compression. the 1003 is compressed to .041" and the 1094 is .015". Any idea of compression boost currently running 10.4:1?

thanks

BrianW
Member
posted March 29, 2004 03:26 PM
I've used them - If I recall they'll take off 6-7cc from the 'standard' .041" compressed gasket - I can run the numbers, but there are plenty of compression calculators out on the net that will get you the number you want - just plug in the 2 compressed thicknesses and see what the difference is... I think I gained .4-.5 point compression on a domed 355.


ss99
Member
posted March 29, 2004 07:41 PM
I use those head gaskets and love them with flat top pistons. You have to keep a close eye on your deck height/quench area when using these gaskets because they are .015 compressed. If you run a zero deck, they are probably not safe to use. We run our pistons slightly down in the hole to get an overall quench less than the .039 and .041 gaskets will allow with a zero deck. I've only had water leakage once with these, and it leaked when we firt put water in the new motor. Once it got hot, they sealed up just fine. When we tear down for inspection, I have put a new one on with no machining and it sealed up just fine.

ss99

joetaylor
Member
posted March 29, 2004 08:00 PM
DAVEN I WOULD USE THE 1003 AND TAKE YOUR HEADS IN AND HAVE THEM FLAT MILLED TO GAIN A LITTLE COMPRESSION INSTEAD OF TAKING THA CHANCE

DUDE IF YOU HAVE ANY QUESTION DON'T BE AFRAID TO CALL ME AT HOME

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U LIFT U LOOSE


DOUBLE BARREL
Member
posted March 30, 2004 04:16 PM
JOE,

ARE THE 1003"s WORTH THE COST DIFFERENCE FROM STOCK FEL PRO HEAD GASKETS? (STOCK COMPLETE GASKET SET $35.00- RACE SET $99.00)..I NORMALLY USE THE STOCK GASKETS AND HAVE NEVER HAD A PROBLEM WITH THEM...355 WITH .125 DOME, 461 HEADS HAVE BEEN MILLED BUT NOT EXACTLY SURE HOW MUCH....GETTING READY TO FINISH UP MOTOR THIS WEEKEND....


THANKS, DOUBLE BARREL


joetaylor
Member
posted March 30, 2004 04:40 PM
yea thay are will worth it rember you get what you pay for the stock gaskets are ok for stock th race gaskets will take the abuse that we put these engins thrugh and will hold up for the season I have stock ones let go 3/4 thrugh the season

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U LIFT U LOOSE


ss#4
Member
posted March 31, 2004 09:50 AM
JoeTaylor, check your PMs thanks


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