Thread: head gaskets cut

Tweet

all the other holes line up

all the other holes line up

yes they would but you still have the wrong gasket? can you tell me who made them or a part number? so they can be look up with the number?they are i am thinking mark 5/6 head gaskets . i thinking this is much i can help you with out any more info or parts numbers or a photo of the real head gasket .like i said i never had to cut any head gaskets on any big bocks i have built over the years or had a hand in over 100 stock and race big blocks mark 4/5/6 allways did get the head gasket for the rigth year block i never tired to make a head gasket fit by cutting on them it was just some thing i did not want to make problem. i just pickout the rigth ones for the year block. i had to buy two set of gaskets if the first set were not going to work were i want more piston to head when the pistons rock out past the top of the deck but never cut on one

they are rol gaskets they came in an engine builders set for the mark4, it said it on the box, everything matched up on the gasket except for that hole

That hole is restricted to force the coolant to flow to the rear of the block before it passes up into the head, and to the radiator. With it opened up, the water won't flow through the back of the engine, resulting in cooling problems and cracked heads. Tell him to chuck them and put in some new ones. Take his little knife away!!!

the water pass are not in front of the block on the mark 4 block so that happens any way i thinking wrong gaskets in the box i have used the ROL gaskets they are not like that on the mark4 #rb3100 or the #hg31170hr the 5/6 blocks are open on both ends of the deck so like R Pope said the front would be plug i have seen race engine done with A@b putty to stop the water from going thru the front of the deck if the old mark 4 gasket was used open on both ends . this is a mark 4 block water in back mark 5/6 open in front and back no on photos of that

what size of gaskets does he need if its bored 30 over